Optical signal processing method and device, storage medium and electronic equipment

Abstract

The invention discloses an optical signal processing method and device, a storage medium and electronic equipment. Relates to the technical field of communication. The method comprises the steps that a first signal set is received, and the first signal set comprises a plurality of optical signals with different wavelengths; and a plurality of semiconductor optical amplifiers are adopted to amplify the optical signals in the first signal set to obtain a second signal set, and the wavelength ranges of the amplified optical signals among the semiconductor optical amplifiers are different. According to the invention, the technical problems of high cost and difficulty in popularization and use when a bismuth-doped optical fiber amplifier is adopted to amplify optical signals with different wavelengths in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, device, storage medium and electronic device for processing an optical signal. Background Art

[0002] In the related art, a single SOA is used to amplify optical signals of multiple wavelengths. However, the conventional single SOA has an O-Band amplification range of 50-60nm, and a saturated amplification output power of 10-15dBm, 17dBm, etc. The saturated amplification output power within 17dBm has limited single-wavelength power amplification capacity for a large number of wavelengths, and it is difficult to meet the needs of existing network applications (existing network infrastructure). When the amplified output power exceeds 17dBm, the requirements for process and materials are greatly increased, and the high output power will bring a larger noise coefficient, resulting in poor system performance. In addition, when the linear flatness of the SOA gain exceeds 20nm in the amplification range, the flatness is poor. Moreover, in the related art, there is no mature WSS (Wavelength Selective Switching module) module in O-Band for single-wavelength power balancing.

[0003] In the related technology, optical signals of different wavelengths can also be amplified by BDFA (Bismuth Doped Fiber Amplifier), but BDFA is still in the laboratory stage and is very expensive. Therefore, BDFA cannot be applied in existing networks due to cost issues.

[0004] With the promotion of OWDM (Optical Wavelength Division Multiplexing) system, in the related technology, when a single SOA amplifies the optical signal, when realizing continuous amplification, the single-wave power, NF (Noise Figure), gain flatness, etc. cannot be guaranteed, and the continuous band application conditions are not met. The BDFA (Erbium-doped Fiber Amplifier) ​​solution is still in the laboratory stage, with high cost and cannot be promoted.

[0005] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0006] The embodiments of the present invention provide a method, device, storage medium and electronic device for processing optical signals, so as to at least solve the technical problem in the related art that bismuth-doped optical fiber amplifiers are used to amplify optical signals of different wavelengths, which is costly and difficult to promote.

[0007] According to one aspect of an embodiment of the present invention, there is provided a method for processing an optical signal, comprising: receiving a first signal set, wherein the first signal set includes a plurality of optical signals of different wavelengths; using a plurality of semiconductor optical amplifiers to amplify the optical signals in the first signal set to obtain a second signal set, wherein the wavelength ranges of the optical signals amplified by each of the semiconductor optical amplifiers are different.

[0008] Furthermore, multiple semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain a second signal set, including: obtaining wavelength information of each optical signal in the first signal set to obtain a wavelength information set; obtaining wavelength range information of the multiple semiconductor optical amplifiers to obtain a range information set, wherein the range information set includes: the wavelength range of optical signals that can be processed by each semiconductor optical amplifier; based on the wavelength information set and the range information set, the multiple semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain the second signal set.

[0009] Furthermore, based on the wavelength information set and the range information set, multiple semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain the second signal set, including: based on the wavelength information set and the range information set, each optical signal in the first signal set is input into one of the semiconductor optical amplifiers to obtain the output result of each semiconductor optical amplifier; based on the output results of multiple semiconductor optical amplifiers, the second signal set is obtained.

[0010] Furthermore, after using multiple semiconductor optical amplifiers to amplify the optical signals in the first signal set to obtain the second signal set, it also includes: using a first thin film filter to converge the optical signals in the second signal set to obtain a target optical signal, wherein the first thin film filter is connected in parallel to the multiple semiconductor optical amplifiers.

[0011] Furthermore, adjacent bandwidths of the first thin film filter are spaced apart by a preset bandwidth size.

[0012] Furthermore, after using the first thin film filter to converge the optical signals in the second signal set to obtain the target optical signal, it also includes: passing the target optical signal through the first filter to obtain the first optical signal, wherein the wavelength range processed by the first filter and the thin film filter is different; passing the first optical signal through the first OSC filter to obtain the second optical signal, and co-fiber transmitting the second optical signal, wherein the first OSC filter is used to monitor and manage the first optical signal.

[0013] Furthermore, after the second optical signal is transmitted on a common fiber, it also includes: passing the second optical signal through a second OSC filter to obtain a third optical signal, wherein the second OSC filter is used to monitor and manage the second optical signal; passing the third optical signal through a second filter to obtain a fourth optical signal, wherein the wavelength range processed by the second filter and the thin film filter is different; inputting the fourth optical signal into a second thin film filter to output a third signal set, wherein the second thin film filter is used to perform wavelength demultiplexing on the fourth optical signal, and the third signal set includes: multiple optical signals obtained after wavelength demultiplexing the fourth optical signal.

[0014] According to another aspect of an embodiment of the present invention, there is also provided an optical signal processing device, comprising: a receiving unit, for receiving a first signal set, wherein the first signal set includes a plurality of optical signals of different wavelengths; and a processing unit, for amplifying the optical signals in the first signal set using a plurality of semiconductor optical amplifiers to obtain a second signal set, wherein the wavelength ranges of the optical signals amplified by the semiconductor optical amplifiers are different.

[0015] Further, the processing unit includes: a first acquisition subunit, configured to acquire wavelength information of each optical signal in the first signal set to obtain a wavelength information set;

[0016] A second acquisition subunit is used to acquire wavelength range information of the multiple semiconductor optical amplifiers to obtain a range information set, wherein the range information set includes: the wavelength range of optical signals that each semiconductor optical amplifier can process; a processing subunit is used to amplify the optical signals in the first signal set using the multiple semiconductor optical amplifiers based on the wavelength information set and the range information set to obtain the second signal set.

[0017] Furthermore, the processing subunit includes: a first processing module, used to input each optical signal in the first signal set into one of the semiconductor optical amplifiers based on the wavelength information set and the range information set to obtain the output result of each semiconductor optical amplifier; and a second processing module, used to obtain the second signal set based on the output results of multiple semiconductor optical amplifiers.

[0018] Furthermore, the optical signal processing device also includes: a convergence unit, which is used to use multiple semiconductor optical amplifiers to amplify the optical signals in the first signal set to obtain a second signal set, and then use a first thin film filter to converge the optical signals in the second signal set to obtain a target optical signal, wherein the first thin film filter is connected in parallel with the multiple semiconductor optical amplifiers.

[0019] Furthermore, adjacent bandwidths of the first thin film filter are spaced apart by a preset bandwidth size.

[0020] Furthermore, the optical signal processing device also includes: a first pass-through unit, used to use the first thin film filter to converge the optical signals in the second signal set to obtain the target optical signal, and then pass the target optical signal through the first filter to obtain the first optical signal, wherein the wavelength range processed by the first filter and the thin film filter is different; a second pass-through unit, used to pass the first optical signal through the first OSC filter to obtain the second optical signal, and perform co-fiber transmission on the second optical signal, wherein the first OSC filter is used to monitor and manage the first optical signal.

[0021] Furthermore, the optical signal processing device also includes: a third penetration unit, used to pass the second optical signal through the second OSC filter after the second optical signal is transmitted on the same fiber, so as to obtain a third optical signal, wherein the second OSC filter is used to monitor and manage the second optical signal; a fourth penetration unit, used to pass the third optical signal through the second filter, so as to obtain a fourth optical signal, wherein the wavelength range processed by the second filter and the thin film filter is different; an input unit, used to input the fourth optical signal into the second thin film filter, and output a third signal set, wherein the second thin film filter is used to perform wavelength demultiplexing processing on the fourth optical signal, and the third signal set includes: multiple optical signals obtained after wavelength demultiplexing the fourth optical signal.

[0022] According to another aspect of an embodiment of the present invention, there is also provided an electronic device, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute any one of the above-mentioned methods for processing optical signals by executing the executable instructions.

[0023] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, which stores a computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute any one of the above-mentioned optical signal processing methods.

[0024] In the present invention, a first signal set is received, wherein the first signal set includes a plurality of optical signals of different wavelengths; a plurality of semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain a second signal set, wherein the wavelength ranges of the optical signals amplified by each semiconductor optical amplifier are different. This solves the technical problem in the related art that bismuth-doped fiber amplifiers are used to amplify optical signals of different wavelengths, which is costly and difficult to promote. In the present invention, a plurality of semiconductor optical amplifiers are used to amplify optical signals of different wavelengths, thereby avoiding the high cost of amplifying optical signals of different wavelengths by bismuth-doped fiber amplifiers in the related art, thereby achieving the technical effect of low-cost and precise amplification of optical signals of different wavelengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 is a flow chart of an optional method for processing an optical signal according to an embodiment of the present invention;

[0027] Figure 2 is a flow chart of an optional optical signal amplification process according to an embodiment of the present invention;

[0028] Figure 3 is a flow chart of an optional optical signal splitting according to an embodiment of the present invention;

[0029] Figure 4 is a schematic diagram of an optional SOA amplification curve according to an embodiment of the present invention;

[0030] Figure 5 is a schematic diagram of an optional optical signal processing device according to an embodiment of the present invention;

[0031] Figure 6 is a schematic diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] For the convenience of description, some terms or nouns involved in the embodiments of the present invention are explained below.

[0035] SOA: Semiconductor Optical Amplifier, a key device for signal amplification in optical communication technology. It uses the photoelectric effect of semiconductor materials to provide gain when optical signals pass through, thereby enhancing the strength of the signal.

[0036] O-Band: Also known as O-band, it is a specific wavelength range defined in the field of optical communications. The wavelength of O-Band is usually between 1260nm and 1360nm.

[0037] C-Band: In the field of optical communications, it usually refers to a specific wavelength range and is a working band widely used in wavelength division multiplexing systems. The wavelength range of C-Band is approximately between 1530nm and 1565nm.

[0038] EDFA: Erbium Doped Fiber Amplifier, also known as erbium-doped fiber amplifier, is an extremely important light amplification technology in the field of optical communications, especially playing a core role in long-distance optical fiber communication networks. The working principle of EDFA is based on the light amplification effect of erbium ions (Er3+) in doped optical fibers at specific wavelengths.

[0039] BDFA: Bismuth Doped Fiber Amplifier, bismuth-doped fiber amplifier, is a relatively new fiber amplification technology that mainly works in the short wavelength region. The working principle of BDFA is similar to that of EDFA.

[0040] WDM: Wavelength Division Multiplexing, is a fiber optic communication technology that uses the broadband characteristics of optical fiber to simultaneously transmit multiple optical signals of different wavelengths on the same optical fiber, with each wavelength carrying an independent information stream.

[0041] OSC: Optical Supervisory Channel, in optical communication systems, especially wavelength division multiplexing (WDM) systems, is used to transmit network management and monitoring information, including equipment status, performance data, fault alarms, etc.

[0042] It should be noted that the user information (including but not limited to user device information, user personal information, etc.), collected information and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, storage, use, processing, transmission, provision, disclosure and application of the relevant data comply with the relevant laws, regulations and standards of the relevant regions, take necessary confidentiality measures, do not violate public order and good morals, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0043] Embodiment 1

[0044] According to an embodiment of the present invention, a method embodiment of an optional method for processing an optical signal is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0045] Figure 1 is a flow chart of an optional optical signal processing method according to an embodiment of the present invention, such as Figure 1 As shown, the method comprises the following steps:

[0046] Step S101: receiving a first signal set, wherein the first signal set includes a plurality of optical signals of different wavelengths.

[0047] The first signal set mentioned above may include: a plurality of optical signals of different wavelengths, and each optical signal of a wavelength carries an independent information flow.

[0048] Step S102: using a plurality of semiconductor optical amplifiers to amplify optical signals in the first signal set to obtain a second signal set, wherein the wavelength ranges of the optical signals amplified by the semiconductor optical amplifiers are different.

[0049] The above-mentioned multiple semiconductor optical amplifiers (SOAs) can be designed to amplify optical signals within a specific wavelength range. Since the O-Band band is far beyond the conventional amplification range (50-60nm) of a single SOA, in this embodiment, multiple SOAs can be connected in parallel, and each SOA focuses on amplifying the optical signal of its specific band to achieve the goal of continuous band amplification.

[0050] For example, for the optical signals in the first signal set, the optical signals can be input into one of the semiconductor optical amplifiers (SOA) according to the range to which the wavelength of the optical signals belongs, and the optical signals can be amplified. After the optical signals in the first signal set are amplified by multiple semiconductor optical amplifiers, the above-mentioned second signal set can be obtained.

[0051] In an optional example, in an O-Band wavelength division multiplexing system, an optical signal first enters the O-Band wavelength division multiplexing system in the form of a first signal set, and the first signal set includes signals of multiple wavelengths. The optical signals in the first signal set can be demultiplexed by a thin film filter. Each thin film filter is designed to pass only signals within a small wavelength range. For example, multiple thin film filters can be designed, each of which passes optical signals in wavelength ranges such as 1289-1299nm, 1300-1310nm, 1311-1321nm, and 1322-1332nm, respectively, to ensure that signals of different wavelengths can be accurately separated. The optical signal segments separated by the thin film filter are sent to the corresponding SOA for amplification. Each SOA is responsible for amplifying signals within a specific band to improve amplification efficiency and performance. For example, an SOA may be designed to amplify signals in the 10nm band, and the saturated output power can reach 15dBm. Since the amplification range is limited to a smaller band, SOA can provide higher single-wave power (such as more than 5dBm per wave), lower noise figure (less than 1.5dB) and better gain flatness (less than 2dB). The amplified optical signals in each band can be combined again through a thin film filter.

[0052] Through the above steps, in this embodiment, multiple semiconductor optical amplifiers are used to amplify multiple optical signals of different wavelengths, thereby avoiding the high cost of using bismuth-doped fiber amplifiers to amplify optical signals of different wavelengths in the related art, thereby achieving the technical effect of low-cost and accurate amplification of optical signals of different wavelengths. This solves the technical problem that the bismuth-doped fiber amplifiers used in the related art to amplify optical signals of different wavelengths are high in cost and difficult to promote.

[0053] Figure 2 is a flow chart of an optional optical signal amplification process according to an embodiment of the present invention. Figure 2As shown, it includes multiple bands O-Band1, O-Band2, O-BandN-1 and O-BandN. In this embodiment, SOAs of different bands can be connected in parallel to the thin film filter. The adjacent bandwidths of the thin film filter are spaced 1nm apart to prevent channel crosstalk. For optical signals of different bands amplified by SOA, they can be converged and passed through the filters of C-Band and OSC in sequence to finally achieve co-fiber transmission. It avoids the high cost of BDFA in related technologies, which is limited to laboratory applications and has no existing network-scale applications. Although the chip-level SOA cascade can achieve continuous amplification, the application is not flexible. A single failure will cause the entire system to be unavailable. In this embodiment, multiple SOAs are used to amplify the optical signal in sections, and SOAs are connected in parallel through thin film filters, which proposes a new technical idea for the large-scale promotion of O-Band WDM systems.

[0054] Optionally, multiple semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain a second signal set, including: obtaining wavelength information of each optical signal in the first signal set to obtain a wavelength information set; obtaining wavelength range information of multiple semiconductor optical amplifiers to obtain a range information set, wherein the range information set includes: the wavelength range of optical signals that can be processed by each semiconductor optical amplifier; based on the wavelength information set and the range information set, multiple semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain a second signal set.

[0055] In this embodiment, the wavelength information of each optical signal may be first identified to form a wavelength information set including all signal wavelengths, which serves as a basis for subsequent optical signal demultiplexing and matching SOA (semiconductor optical amplifier).

[0056] In order to effectively amplify each optical signal in the first signal set, each SOA can be designed to amplify within a specific wavelength range of the O-Band. Since the amplification range of a single SOA is limited, the use of multiple SOAs is the key to achieving continuous amplification of the entire O-Band. Therefore, the wavelength range information of all SOAs can be collected to form a range information set.

[0057] In this embodiment, the optical signals in the first signal set can be assigned to the corresponding SOA for amplification based on the wavelength information set and the range information set. Each SOA only amplifies the signals within its wavelength range, ensuring the effectiveness and specificity of the amplification. For example, when the wavelength of an optical signal falls within the wavelength range of a certain SOA, the optical signal is sent to the SOA for amplification processing. The optical signals obtained after all the optical signals in the first signal set are amplified by the SOA can form the above-mentioned second signal set. Compared with the first signal set, the optical signals in the second signal set have been amplified by the SOA, which improves the power, optimizes the noise coefficient and gain flatness, can significantly improve the single-fiber capacity, reduce the use of optical fibers, and provide better power compensation for existing transmission systems.

[0058] Optionally, based on the wavelength information set and the range information set, multiple semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain a second signal set, including: based on the wavelength information set and the range information set, each optical signal in the first signal set is input into one of the semiconductor optical amplifiers to obtain the output result of each semiconductor optical amplifier; based on the output results of multiple semiconductor optical amplifiers, the second signal set is obtained.

[0059] In this embodiment, each optical signal in the first signal set can be matched with an SOA (semiconductor optical amplifier) ​​that can process its wavelength range, and each optical signal is only input into an SOA that matches its wavelength, ensuring that each SOA only processes signals within its designed band, thereby avoiding interference between bands.

[0060] In this embodiment, each SOA can independently amplify the optical signal it receives. Since each SOA is responsible for a smaller wavelength range, it can provide higher amplification efficiency, lower noise coefficient and better gain flatness. For example, an SOA with a 10nm wavelength range can provide a saturated output power of 15dBm. For signals with 10 wavelengths, the single-wave power can reach more than 5dBm, the noise coefficient is less than 1.5dB, and the gain flatness is less than 2dB. The output results of multiple SOAs can form a second signal set, effectively avoiding the power, noise and gain flatness problems when amplifying O-Band optical signals, achieving continuous band amplification, while maintaining the flexibility and cost-effectiveness of the system. Compared with using a single amplifier to amplify optical signals of different wavelengths, the multiple semiconductor optical amplifiers in this embodiment can provide more stable and higher-quality signal amplification, which is suitable for metropolitan area networks, county and township wavelength division, and other scenarios, and can significantly improve the capacity and performance of the transmission system.

[0061] Optionally, after using multiple semiconductor optical amplifiers to amplify the optical signals in the first signal set to obtain the second signal set, it also includes: using a first thin film filter to converge the optical signals in the second signal set to obtain a target optical signal, wherein the first thin film filter is connected in parallel with the multiple semiconductor optical amplifiers.

[0062] The type of the above-mentioned thin film filter is an O-Band filter. In an optional example, all optical signals in the second signal set can be converged and processed by the first thin film filter. Specifically, the first thin film filter can be connected in parallel with multiple SOAs to directly receive output signals from all SOAs. The first thin film filter can recombine optical signals of multiple bands into a continuous band signal. For example, the optical signals in the second signal set can be reintegrated in wavelength order to form a target optical signal, ensuring that all amplified optical signals can be combined in the correct order and wavelength, providing a high-quality signal source for subsequent transmission, so as to facilitate the common fiber transmission of optical signals.

[0063] In this embodiment, low-cost, mature SOA is used, and the parallel SOA is combined and split through a thin film filter to achieve continuous band amplification. The output power and noise factor can achieve the level of BDFA, and each module is independent and does not affect each other. The application is flexible, the fault domain is small, and it has the ability to be applied in existing networks.

[0064] Optionally, adjacent bandwidths of the first thin film filter are spaced apart by a preset bandwidth size.

[0065] In this embodiment, the adjacent bandwidth intervals of the thin film filter have a preset bandwidth size, which may be 1 nm, for preventing channel crosstalk. Specifically, the adjacent bandwidth intervals of the thin film filter are designed to be 1 nm, which is a key strategy for achieving high-quality multi-band optical signal amplification. It ensures that each amplified optical signal remains independent, avoiding mutual interference between signals of different bands.

[0066] Optionally, after using the first thin film filter to converge the optical signals in the second signal set to obtain the target optical signal, it also includes: passing the target optical signal through the first filter to obtain the first optical signal, wherein the wavelength range processed by the first filter and the thin film filter is different; passing the first optical signal through the first OSC filter to obtain the second optical signal, and co-fiber transmitting the second optical signal, wherein the first OSC filter is used to monitor and manage the first optical signal.

[0067] The type of the above-mentioned first filter may be a C-Band filter, and the above-mentioned first OSC filter is an OSC filter. In this embodiment, the target optical signal obtained after converging the optical signals in the second signal set can be sequentially passed through the C-Band filter (corresponding to the first filter) and the OSC filter (corresponding to the first OSC filter), and finally realize common fiber transmission.

[0068] Optionally, after the second optical signal is transmitted on a common fiber, the method further includes: passing the second optical signal through a second OSC filter to obtain a third optical signal, wherein the second OSC filter is used to monitor and manage the second optical signal; passing the third optical signal through the second filter to obtain a fourth optical signal, wherein the wavelength range processed by the second filter and the thin film filter is different; inputting the fourth optical signal into the second thin film filter to output a third signal set, wherein the second thin film filter is used to perform wavelength demultiplexing on the fourth optical signal, and the third signal set includes: multiple optical signals obtained after wavelength demultiplexing the fourth optical signal.

[0069] Figure 3 is a flow chart of an optional optical signal demultiplexing according to an embodiment of the present invention. Figure 3 As shown, the main optical signal (the second optical signal) can pass through the OSC filter (corresponding to the second OSC filter) and the C-Band filter (corresponding to the second filter) in sequence, and then enter the O-Band filter. After the wavelength of the corresponding amplifier is filtered out, other wavelengths continue to be transmitted forward and filtered out in sequence to achieve wavelength demultiplexing.

[0070] Figure 4 is a schematic diagram of an optional SOA amplification curve according to an embodiment of the present invention, such as Figure 4 The figure shows the comparison between a single SOA amplification curve and multiple SOA amplification curves. SOAs with different amplification bands: such as 1289-1299, 1300-1310, 1311-1321, 1322-1332, etc., have an amplification range of 10nm and an output power of 15dBm. If 10 wavelengths are designed, the maximum single-wave power can reach more than 5dBm. With an amplification range of 10nm, the wavelength gain flatness can be within 1.5dB, and the performance of the WDM system is greatly improved.

[0071] It should be noted that SOAs with different amplification bands are connected in parallel to achieve common fiber transmission, and OSC filters are used to transmit OSC optical signals and O-Band signals on the same fiber. O-Band plus C-Band ultra-large bandpass filters can be used to connect multiple optical signals within the O-Band range in parallel with multiple wavelength signals of the C-Band to achieve common fiber transmission.

[0072] The optical signal processing method provided in this embodiment can be applied to the wavelength division system of 100G wavelength O-Band in the metropolitan area network, and can also be used for wavelength division in counties and townships, and the wavelength division system of 10G wavelength O-Band, for 10G rate uplink such as OLT, and can also be used for 10G / 25G / 50G transmission systems in fronthaul and related technologies to perform union rate compensation. It can also be used to upgrade the existing 100G ER4 (Extended Reach 4-wavelength) module direct connection scenario, improve single-fiber capacity, reduce the number of optical fibers used, replace the 10GC-Band wavelength division system that is about to be decommissioned, and be used as a low-rate wavelength division bearer solution.

[0073] In this embodiment, multiple SOAs with different amplification ranges are connected in parallel, and each SOA is only responsible for amplifying a section of the optical signal. The saturated output power, NF (Noise Figure), and flatness of a single SOA are significantly improved due to the smaller amplification range. The optical signals associated with multiple SOAs are combined and split by thin film filters to achieve a high-performance amplifier with a larger wavelength range. In the case of multiple wavelengths, the single-wave power is increased by more than 5dB, the noise figure is reduced by more than 1.5dB, and the flatness is increased by more than 2dB, reaching the amplification level of EDFA in C-Band.

[0074] Embodiment 2

[0075] Embodiment 2 of the present invention provides an optional optical signal processing device, and each implementation unit in the processing device corresponds to each step in Embodiment 1.

[0076] Figure 5 is a schematic diagram of an optional optical signal processing device according to an embodiment of the present invention, such as Figure 5 As shown, it includes: a receiving unit 51 and a processing unit 52.

[0077] A receiving unit 51, configured to receive a first signal set, wherein the first signal set includes a plurality of optical signals of different wavelengths;

[0078] The processing unit 52 is used to use multiple semiconductor optical amplifiers to amplify the optical signals in the first signal set to obtain a second signal set, wherein the wavelength ranges of the optical signals amplified by each semiconductor optical amplifier are different.

[0079] In the optical signal processing device provided in the second embodiment of the present invention, a first signal set can be received by a receiving unit 51, wherein the first signal set includes a plurality of optical signals of different wavelengths, and a second signal set is obtained by a processing unit 52 using a plurality of semiconductor optical amplifiers to amplify the optical signals in the first signal set, wherein the wavelength ranges of the optical signals amplified by each semiconductor optical amplifier are different. This solves the technical problem that the related art uses bismuth-doped fiber amplifiers to amplify optical signals of different wavelengths, which is costly and difficult to promote. In this embodiment, multiple semiconductor optical amplifiers are used to amplify optical signals of different wavelengths, thereby avoiding the high cost of using bismuth-doped fiber amplifiers to amplify optical signals of different wavelengths in the related art, thereby achieving the technical effect of low-cost and precise amplification of optical signals of different wavelengths.

[0080] Optionally, the processing unit includes: a first acquisition subunit, configured to acquire wavelength information of each optical signal in the first signal set to obtain a wavelength information set;

[0081] The second acquisition subunit is used to acquire the wavelength range information of multiple semiconductor optical amplifiers to obtain a range information set, wherein the range information set includes: the wavelength range of optical signals that each semiconductor optical amplifier can process; the processing subunit is used to use multiple semiconductor optical amplifiers to amplify the optical signals in the first signal set based on the wavelength information set and the range information set to obtain a second signal set.

[0082] Optionally, in the optical signal processing device provided in Embodiment 2 of the present invention, the processing subunit includes: a first processing module, used to input each optical signal in the first signal set into one of the semiconductor optical amplifiers based on a wavelength information set and a range information set, to obtain the output result of each semiconductor optical amplifier; and a second processing module, used to obtain a second signal set based on the output results of multiple semiconductor optical amplifiers.

[0083] Optionally, in the optical signal processing device provided in Embodiment 2 of the present invention, the optical signal processing device further includes: a convergence unit, which is used to amplify the optical signals in the first signal set using multiple semiconductor optical amplifiers to obtain a second signal set, and then use a first thin film filter to converge the optical signals in the second signal set to obtain a target optical signal, wherein the first thin film filter is connected in parallel with the multiple semiconductor optical amplifiers.

[0084] Optionally, in the optical signal processing device provided in the second embodiment of the present invention, adjacent bandwidths of the first thin film filters are spaced apart by a preset bandwidth size.

[0085] Optionally, in the optical signal processing device provided in Embodiment 2 of the present invention, the optical signal processing device also includes: a first pass-through unit, used to, after using the first thin film filter to converge the optical signals in the second signal set to obtain the target optical signal, pass the target optical signal through the first filter to obtain the first optical signal, wherein the wavelength range processed by the first filter and the thin film filter is different; a second pass-through unit, used to pass the first optical signal through the first OSC filter to obtain the second optical signal, and perform co-fiber transmission on the second optical signal, wherein the first OSC filter is used to monitor and manage the first optical signal.

[0086] Optionally, in the optical signal processing device provided in Embodiment 2 of the present invention, the optical signal processing device also includes: a third penetration unit, used to pass the second optical signal through the second OSC filter after the second optical signal is transmitted on the same fiber, so as to obtain a third optical signal, wherein the second OSC filter is used to monitor and manage the second optical signal; a fourth penetration unit, used to pass the third optical signal through the second filter, so as to obtain a fourth optical signal, wherein the wavelength range processed by the second filter and the thin film filter is different; an input unit, used to input the fourth optical signal into the second thin film filter, and output a third signal set, wherein the second thin film filter is used to perform wavelength demultiplexing processing on the fourth optical signal, and the third signal set includes: multiple optical signals obtained after wavelength demultiplexing the fourth optical signal.

[0087] The above-mentioned optical signal processing device may further include a processor and a memory. The above-mentioned receiving unit 51 and processing unit 52 are stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize corresponding functions.

[0088] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and multiple semiconductor optical amplifiers are used to amplify multiple optical signals of different wavelengths by adjusting kernel parameters, thereby avoiding the high cost of using bismuth-doped fiber amplifiers to amplify optical signals of different wavelengths in related technologies, thereby achieving the technical effect of low-cost and accurate amplification of optical signals of different wavelengths.

[0089] The above-mentioned memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one storage chip.

[0090] According to another aspect of an embodiment of the present invention, there is also provided an electronic device, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute any one of the above-mentioned methods for processing optical signals by executing the executable instructions.

[0091] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, which stores a computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute any one of the above-mentioned optical signal processing methods.

[0092] Figure 6 is a schematic diagram of an electronic device according to an embodiment of the present invention, such as Figure 6 As shown, an embodiment of the present invention provides an electronic device 60, which includes a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, any one of the above-mentioned methods for processing optical signals is implemented.

[0093] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0094] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0096] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0097] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0098] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0099] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for processing an optical signal, characterized in that: include: Receiving a first signal set, wherein the first signal set includes a plurality of optical signals of different wavelengths; A plurality of semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain a second signal set, wherein the wavelength ranges of the optical signals amplified by the semiconductor optical amplifiers are different.

2. The processing method according to claim 1, characterized in that: Using multiple semiconductor optical amplifiers to amplify the optical signals in the first signal set to obtain a second signal set, including: Acquire wavelength information of each optical signal in the first signal set to obtain a wavelength information set; Acquire wavelength range information of a plurality of semiconductor optical amplifiers to obtain a range information set, wherein the range information set includes: a wavelength range of an optical signal that can be processed by each semiconductor optical amplifier; Based on the wavelength information set and the range information set, a plurality of semiconductor optical amplifiers are used to amplify the optical signals in the first signal set to obtain the second signal set.

3. The processing method according to claim 2, characterized in that: Based on the wavelength information set and the range information set, using a plurality of the semiconductor optical amplifiers, amplifying the optical signals in the first signal set to obtain the second signal set includes: Based on the wavelength information set and the range information set, input each optical signal in the first signal set into one of the semiconductor optical amplifiers to obtain an output result of each semiconductor optical amplifier; The second signal set is obtained based on the output results of the plurality of semiconductor optical amplifiers.

4. The processing method according to claim 1, characterized in that: After amplifying the optical signals in the first signal set by using a plurality of semiconductor optical amplifiers to obtain a second signal set, the method further includes: The optical signals in the second signal set are converged by using a first thin film filter to obtain a target optical signal, wherein the first thin film filter is connected in parallel with the plurality of semiconductor optical amplifiers.

5. The processing method according to claim 4, characterized in that: Adjacent bandwidths of the first thin film filters are spaced apart by a preset bandwidth size.

6. The processing method according to claim 4, characterized in that: After the optical signals in the second signal set are converged by using the first thin film filter to obtain the target optical signal, the method further includes: Passing the target optical signal through a first filter to obtain a first optical signal, wherein the first filter and the thin film filter process different wavelength ranges; The first optical signal passes through a first OSC filter to obtain a second optical signal, and the second optical signal is transmitted through a common fiber, wherein the first OSC filter is used to monitor and manage the first optical signal.

7. The processing method according to claim 6, characterized in that: After the second optical signal is transmitted through a co-fiber, the method further includes: Passing the second optical signal through a second OSC filter to obtain a third optical signal, wherein the second OSC filter is used to monitor and manage the second optical signal; Passing the third optical signal through a second filter to obtain a fourth optical signal, wherein the second filter and the thin film filter process different wavelength ranges; The fourth optical signal is input into a second thin film filter to output a third signal set, wherein the second thin film filter is used to perform wavelength division processing on the fourth optical signal, and the third signal set includes: multiple optical signals obtained after wavelength division of the fourth optical signal.

8. An optical signal processing device, characterized in that: include: A receiving unit, configured to receive a first signal set, wherein the first signal set includes a plurality of optical signals of different wavelengths; The processing unit is used to use multiple semiconductor optical amplifiers to amplify the optical signals in the first signal set to obtain a second signal set, wherein the wavelength ranges of the optical signals amplified by each of the semiconductor optical amplifiers are different.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute the optical signal processing method according to any one of claims 1 to 7.

10. An electronic device, characterized in that: The method comprises one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the optical signal processing method according to any one of claims 1 to 7.

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