High-parallelism air medium wavelength division multiplexing optical assembly, device and system

Abstract

The invention provides a high-parallelism air medium wavelength division multiplexing optical assembly, device and system, and the assembly comprises a glass substrate which is hollow and comprises side walls which are parallel to each other, the glass substrate is filled with a transmission medium, and a to-be-split optical signal is transmitted in the transmission medium through the side walls which are parallel to each other; and the plurality of filters are respectively connected to the mutually parallel side walls and are all located on the optical signal transmission path to be subjected to beam splitting. According to the invention, the side wall of the glass substrate can provide a mounting platform for the parallel arrangement of the filters, the parallelism between the filters is effectively ensured through the parallel side wall structure, and a solid physical foundation is laid for the efficient transmission of optical signals. The hollow structure in the glass substrate can also significantly reduce reflection and refraction loss of optical signals in the transmission process by adjusting the transmission medium, so that the signal transmission strength is effectively improved, and it is ensured that the high transmission precision can be achieved while the signal transmission strength is improved.

Description

Technical Field

[0001] The present invention relates to the field of optical transmission technology, and in particular to a high-parallelism air medium wavelength division multiplexing optical component, device and system. Background Art

[0002] In the field of optical communications, wavelength division multiplexing (WDM) technology is one of the key technologies to improve the bandwidth of optical fiber communications. With the rapid development of technologies such as 5G, cloud computing, and big data, data transmission rates are growing exponentially, and the demand for network bandwidth is also increasing. In order to meet these growing demands, WDM technology has become an effective means to expand the bandwidth of optical fiber communications. It can simultaneously transmit multiple optical signals of different wavelengths in one optical fiber, significantly improving the transmission capacity of optical fibers.

[0003] With its unique design and performance advantages, Z-BLOCK components play a vital role in high-speed optical modules and are widely used in metropolitan area networks, access networks, and transmission network transceivers. The typical structure of a Z-BLOCK component includes a specially treated rhombus prism (parallelogram glass substrate), part of the back of which is coated with a high-reflection film, and the other side is affixed with WDM filters of different wavelengths. Each filter is highly selective, allowing only the optical signal of the current channel wavelength to pass through and reflecting the wavelengths of other channels, thereby achieving the selection of a beam of a specific wavelength and ensuring the effective separation and transmission of optical signals of different wavelengths. However, current communication technology is developing rapidly in the direction of ultra-high speed and large capacity, which puts higher requirements on the performance of optical communication components. Traditional dielectric materials have exposed a series of problems in the face of increasing communication speeds and signal frequencies, such as obvious signal attenuation, which leads to a weakening of the intensity of the optical signal during transmission, affecting the communication quality; nonlinear effects gradually become prominent, interfering with the normal transmission of signals; thermal effects cannot be ignored, which will cause unstable component performance. In order to solve these problems, attempts have been made to space the filter and the reflective surface and to place other types of transmission medium materials between them, hoping to improve the signal transmission effect. However, this method brings new difficulties. It seriously affects the parallelism between the filter and the reflective surface, making it difficult to accurately control the transmission path and angle of the optical signal, thereby limiting the further development and performance improvement of the Z-BLOCK component. Based on the above research, the industry is currently in urgent need of an innovative solution to break through these bottlenecks. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem of poor signal transmission effect in the prior art and provide a high-parallelism air medium wavelength division multiplexing optical component, device and system.

[0005] In order to solve the above technical problems, the present invention provides a high-parallelism air-medium wavelength division multiplexing optical component, which includes: a glass substrate, the interior of the glass substrate is hollow and includes at least one group of mutually parallel side walls, the interior of the glass substrate is filled with a transmission medium, and the optical signal to be split is transmitted in the transmission medium through the mutually parallel side walls; a plurality of filters, the plurality of filters are respectively connected to the mutually parallel side walls, and the plurality of filters are all located on the transmission path of the optical signal to be split, the optical signal to be split passes through the plurality of filters in turn, and is transmitted or reflected on the filters.

[0006] In one embodiment of the present invention, the transmission medium is air, and the filter is a bandpass filter.

[0007] In one embodiment of the present invention, the optical signal to be split is non-vertically incident on the side wall of the glass substrate and propagates in a "Z" shape in the transmission medium.

[0008] In one embodiment of the present invention, the high-parallelism air-medium wavelength division multiplexing optical component also includes at least one reflector, which is connected to the mutually parallel side walls and is located on the transmission path of the optical signal to be split. The optical signal to be split passes through the plurality of filters in sequence through at least one of the reflectors.

[0009] In one embodiment of the present invention, the reflection surfaces of the plurality of filters and the reflection surface of the reflection mirror are parallel to the side wall of the glass substrate to which they are connected.

[0010] In one embodiment of the present invention, the high-parallelism air-medium wavelength division multiplexing optical component further includes a ceramic substrate, and the glass substrate is disposed on the ceramic substrate.

[0011] The present invention also provides a light splitting device, which comprises the above-mentioned high-parallelism air medium wavelength division multiplexing optical component.

[0012] In one embodiment of the present invention, the spectroscopic device also includes a transmitting laser and a plurality of signal receiving ends, the high-parallelism air-medium wavelength division multiplexing optical component is arranged between the transmitting laser and at least part of the signal receiving ends, and the transmitting laser and the signal receiving end are respectively arranged on both sides of the side walls of the glass substrate in the high-parallelism air-medium wavelength division multiplexing optical component that are parallel to each other, wherein the plurality of signal receiving ends respectively correspond to the plurality of filter settings in the high-parallelism air-medium wavelength division multiplexing optical component.

[0013] In one embodiment of the present invention, the light splitting device further comprises a light splitting module, and the light splitting module is arranged between the transmitting laser and the high-parallelism air-medium wavelength division multiplexing optical component.

[0014] The present invention also provides a spectroscopic system, which comprises at least one of the above-mentioned spectroscopic devices.

[0015] The above technical solution of the present invention has the following advantages compared with the prior art: The high-parallelism air-medium wavelength division multiplexing optical components, devices and systems described in the present invention, wherein the side walls of the glass substrate can provide an installation and connection platform for the parallel setting of the filter, and the parallel side wall structure allows the filter to be accurately and stably installed, effectively ensuring the parallelism between the filters, and laying a solid physical foundation for the efficient transmission of optical signals. The hollow structure inside the glass substrate can significantly reduce the reflection and refraction losses of the optical signal during the transmission process by adjusting the transmission medium, thereby effectively improving the transmission strength of the signal, thereby improving and improving the signal transmission strength while ensuring that it can have a high transmission accuracy. Compared with conventional optical components at this stage, the high-parallelism air-medium wavelength division multiplexing optical components, devices and systems described in the present invention solve many problems of traditional optical components in signal transmission through innovative design and optimized structure, and provide an efficient and reliable solution for the development of the field of optical communications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of a high-parallelism air-medium wavelength division multiplexing optical component in a preferred embodiment of the present invention; Figure 2 is a schematic structural diagram of a high-parallelism air-medium wavelength division multiplexing optical component in another embodiment of the present invention; Figure 3 It is a schematic structural diagram of a spectrometer in the third embodiment of the present invention.

[0018] Explanation of the reference numerals in the specification: 100, glass substrate; 200, filter; 300, reflector; 400, ceramic substrate; 500, transmitting laser; 600, spectrometer module; 700, signal receiving end. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Embodiment 1

[0020] The present embodiment provides a high-parallelism air-medium wavelength division multiplexing optical component, which includes: a glass substrate 100, the interior of the glass substrate 100 is hollow, and includes at least one set of mutually parallel side walls, the interior of the glass substrate 100 is filled with a transmission medium, and the optical signal to be split is transmitted in the transmission medium through the mutually parallel side walls; a plurality of filters 200, the plurality of filters 200 are respectively connected to the mutually parallel side walls, and the plurality of filters 200 are all located on the transmission path of the optical signal to be split, the optical signal to be split passes through the plurality of filters 200 in sequence, and is transmitted or reflected on the filters 200 to achieve filtering and splitting.

[0021] The high-parallelism air-medium wavelength division multiplexing optical component of this embodiment uses the side wall of the glass substrate 100 to provide a platform for the parallel installation of the filter 200, thereby making the installation of the filter 200 precise and stable, ensuring the parallelism between the filters 200, and laying a solid physical foundation for the efficient transmission of optical signals. The hollow structure inside the glass substrate 100 can adjust the transmission medium, greatly reduce the reflection and refraction losses during the transmission of optical signals, effectively improve the signal transmission strength, and take into account both transmission strength and accuracy.

[0022] See also Figure 1 As shown, in order to achieve the assembly stability of the glass substrate 100 and the multiple filters 200, the high-parallelism air-medium wavelength division multiplexing optical component in this embodiment also includes a ceramic substrate 400, and the glass substrate 100 is arranged on the ceramic substrate 400. Specifically, the two opposite sides of the glass substrate 100 in this embodiment are arranged in parallel, and the interior is a hollow structure filled with air as a transmission medium. It should be noted that traditional optical components usually use solid media as transmission channels for optical signals, but solid media have many limitations, such as absorption, scattering and nonlinear effects of optical signals. These factors will cause significant attenuation of optical signals during transmission, seriously affecting the transmission quality and transmission distance of the signal. In this application, air is used as the transmission medium. On the one hand, it can reduce the overall mass of the component and make it lighter. On the other hand, air has uniform optical properties, and the absorption and scattering of optical signals are extremely small, which can significantly reduce the attenuation of optical signals during transmission. Furthermore, in different implementations, the size and shape of the hollow structure can be precisely controlled according to actual use requirements, thereby further optimizing the transmission path of the optical signal, reducing the reflection and refraction loss of the signal, and effectively improving the transmission strength of the signal. Accordingly, the specific transmission medium can also be set to other types according to actual needs, and the present invention does not make specific restrictions on this.

[0023] In this embodiment, the filter 200 is preferably a bandpass filter 200, and the reflective surfaces of the multiple filters 200 are parallel to the side walls of the glass substrate 100 connected thereto. Based on this, after the optical signal to be split is non-vertically incident on the side walls of the glass substrate 100, it can propagate in a "Z" shape in the transmission medium. In different usage scenarios, the purpose of improving the wavelength selectivity and transmission efficiency of the filter can be achieved by optimizing the optical material and coating design of the filter during light transmission. It should be noted that the above-mentioned structure in the present application can also improve the wavelength selectivity and the corresponding sensitivity of the filter 200 to signals of different wavelengths by introducing multiple interference effects and dispersion compensation technology. Specifically, when light propagates, it will be reflected and refracted when encountering different medium interfaces or periodic structures, and the reflected light and the refracted light will interfere with each other. The present application carefully designs parameters such as the number of layers, thickness and refractive index of the optical film to construct an environment that can produce multiple interferences. When light of different wavelengths enters the structure, light of a specific wavelength is enhanced due to constructive interference and passes through the filter 200, while light of other wavelengths is greatly attenuated due to destructive interference. The light of a specific wavelength is accurately screened, which greatly improves the wavelength selectivity of the filter 200. For example, in a wavelength division multiplexing system, it can reduce the crosstalk of adjacent wavelength signals and improve the quality and efficiency of signal transmission. Dispersion compensation technology can use special optical materials or specific optical path structures to accurately adjust the time delay according to the dispersion characteristics of light signals of different wavelengths. Add a delay to the wavelength signal with large dispersion to synchronize it with other signals, and make a small delay adjustment to the signal with small dispersion to reduce signal distortion and broadening. This not only improves the signal transmission quality, but also enhances the response sensitivity of the filter 200 to signals of different wavelengths, avoids signal ambiguity and misjudgment caused by dispersion, and enables it to respond to signals of different wavelengths more quickly and accurately.

[0024] The specific working process and effect of the high parallelism air medium wavelength division multiplexing optical component described in this embodiment are described below: First, before performing the spectroscopic operation, multiple filters 200 need to be connected to the parallel side walls of the glass substrate 100, and then the optical signal to be spectroscopically divided is transmitted from the side walls of the glass substrate 100 to the transmission medium, so that it is reflected by the multiple filters 200 and sequentially subjected to transmission spectroscopic or reflection transmission. In this process, the multiple filters 200 have a high degree of parallelism, thereby improving the transmission accuracy of the signal. At the same time, air as a transmission medium greatly reduces the degree of signal transmission attenuation. Embodiment 2

[0025] See also Figure 2As shown, this embodiment provides another high-parallelism air-medium wavelength division multiplexing optical component, whose working principle and main structure are the same as those of the first embodiment, and no further details are given here. In this embodiment, the high-parallelism air-medium wavelength division multiplexing optical component also includes at least one reflector 300, and the reflector 300 is connected to the mutually parallel side walls and is located on the transmission path of the optical signal to be split. The optical signal to be split passes through the plurality of filters 200 in sequence through at least one of the reflectors 300 to achieve the transmission of the optical path through another structure. In addition, based on the setting of the reflector 300, this embodiment can also adjust or position the light transmission path according to actual use requirements, thereby making the present application have a higher degree of flexibility in use and scope of application. Specifically, the reflective surface of the reflector 300 in this embodiment is parallel to the side wall of the glass substrate 100 to which it is connected. In different implementations, the specific number and actual connection position of the reflector 300 can be adaptively adjusted according to actual use requirements, and the present invention does not impose specific restrictions on this. Embodiment 3

[0026] See also Figure 3 As shown, this embodiment provides a spectrometer, which includes the high-parallelism air-medium wavelength division multiplexing optical component described in Example 1, a transmitting laser 500 and a plurality of signal receiving ends 700, wherein the high-parallelism air-medium wavelength division multiplexing optical component is arranged between the transmitting laser 500 and at least part of the signal receiving end 700, and the transmitting laser 500 and the signal receiving end 700 are respectively arranged on both sides of the parallel side walls of the glass substrate 100 in the high-parallelism air-medium wavelength division multiplexing optical component, wherein the plurality of signal receiving ends 700 are respectively arranged corresponding to the plurality of filters 200 in the high-parallelism air-medium wavelength division multiplexing optical component. Further, the spectrometer in this embodiment also includes a spectrometer module 600, which is arranged between the transmitting laser 500 and the high-parallelism air-medium wavelength division multiplexing optical component to realize multi-path parallel transmission of optical signals. Specifically, the optical signal after spectrometering can be directionally extracted with wavelength signals by the plurality of signal receiving ends 700. Specifically, the number of signal receiving ends 700 in this embodiment is the same as the number of filters 200 , both configured as four. In different implementations, the number of signal receiving ends 700 is not less than the number of corresponding filters 200 . Embodiment 4

[0027] This embodiment provides a spectroscopic system, which includes at least one spectroscopic device described in the first embodiment.

[0028] In summary, the high-parallelism air-medium wavelength division multiplexing optical components, devices and systems described in the present invention, wherein the side walls of the glass substrate 100 can provide an installation and connection platform for the parallel setting of the filter 200, and the parallel sidewall structure allows the filter 200 to be accurately and stably installed, effectively ensuring the parallelism between the filters 200, and laying a solid physical foundation for the efficient transmission of optical signals. The hollow structure inside the glass substrate 100 can significantly reduce the reflection and refraction losses of the optical signal during the transmission process by adjusting the transmission medium, thereby effectively improving the transmission strength of the signal, thereby improving and improving the signal transmission strength while ensuring that it can have a high transmission accuracy. Compared with conventional optical components at this stage, the high-parallelism air-medium wavelength division multiplexing optical components, devices and systems described in the present invention solve many problems of traditional optical components in signal transmission through innovative design and optimized structure, and provide an efficient and reliable solution for the development of the field of optical communications.

[0029] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A high-parallelism air-medium wavelength division multiplexing optical component, characterized in that: include: A glass substrate, wherein the interior of the glass substrate is hollow and includes at least one set of mutually parallel side walls, the interior of the glass substrate is filled with a transmission medium, and the optical signal to be split is transmitted in the transmission medium through the mutually parallel side walls; A plurality of filters are respectively connected to the mutually parallel side walls, and the plurality of filters are all located on the transmission path of the optical signal to be split, and the optical signal to be split passes through the plurality of filters in sequence and is transmitted or reflected on the filters.

2. The high-parallelism air-medium wavelength division multiplexing optical component according to claim 1, characterized in that: The transmission medium is air, and the filter is a bandpass filter.

3. The high-parallelism air-medium wavelength division multiplexing optical component according to claim 1, characterized in that: The optical signal to be split is incident on the side wall of the glass substrate non-vertically and propagates in a "Z" shape in the transmission medium.

4. The high-parallelism air-medium wavelength division multiplexing optical component according to claim 1, characterized in that: The high-parallelism air-medium wavelength division multiplexing optical component also includes at least one reflector, which is connected to the mutually parallel side walls and located on the transmission path of the optical signal to be split. The optical signal to be split passes through the plurality of filters in sequence through at least one of the reflectors.

5. The high-parallelism air-medium wavelength division multiplexing optical component according to claim 4, characterized in that: The reflection surfaces of the plurality of filters and the reflection surface of the reflection mirror are parallel to the side wall of the glass substrate connected thereto.

6. The high-parallelism air-medium wavelength division multiplexing optical component according to claim 1, characterized in that: The high-parallelism air-medium wavelength division multiplexing optical component further comprises a ceramic substrate, and the glass substrate is arranged on the ceramic substrate.

7. A spectroscopic device, characterized in that: A high-parallelism air-medium wavelength division multiplexing optical component comprising any one of claims 1 to 6.

8. The spectroscopic device according to claim 7, characterized in that: The spectroscopic device also includes a transmitting laser and a plurality of signal receiving ends. The high-parallelism air-medium wavelength division multiplexing optical component is arranged between the transmitting laser and at least part of the signal receiving ends, and the transmitting laser and the signal receiving end are respectively arranged on both sides of the side walls of the glass substrate in the high-parallelism air-medium wavelength division multiplexing optical component that are parallel to each other, wherein the plurality of signal receiving ends respectively correspond to the plurality of filter settings in the high-parallelism air-medium wavelength division multiplexing optical component.

9. The spectroscopic device according to claim 8, characterized in that: The light splitting device also includes a light splitting module, which is arranged between the emitting laser and the high-parallelism air medium wavelength division multiplexing optical component.

10. A spectroscopic system, characterized in that: Comprising at least one spectroscopic device as described in any one of claims 7 to 9.

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