Optical communication assembly, optical communication equipment and optical communication system

Abstract

The embodiment of the invention provides an optical communication assembly which is applied to the optical communication field and the optical fiber communication field. The optical communication assembly comprises an optical transmitter and a first tail fiber. The light emitter is connected with the first tail fiber. The first tail fiber and the first optical fiber are connected through a first optical port connector. The first tail fiber is a plastic optical fiber. The first optical fiber is a glass optical fiber. The optical transmitter is used for generating a first optical signal and transmitting the first optical signal to the other optical communication assembly through the first tail fiber and the first optical fiber. In the technical scheme provided by the invention, the plastic optical fiber and the glass optical fiber are combined for use, so that the noise can be reduced, and low-cost and high-quality optical communication is realized.

Description

Technical Field

[0001] The present application relates to the field of optical communications, and in particular to optical communication components, optical communication equipment and optical communication systems in the field of optical fiber communications. Background Art

[0002] The optical communication system of the present invention comprises an optical transmitter and an optical receiver connected by an optical fiber. The optical transmitter is used to generate an optical signal according to an electrical signal and transmit the optical signal to the optical receiver through the optical fiber. The optical receiver is used to convert the optical signal into an electrical signal. There are many types of noise in the optical communication system. For example, light source relative intensity noise, mode hopping noise, multipath interference noise, etc. Noise will affect the quality of optical communication. Therefore, how to reduce the noise of the optical communication system is an urgent problem to be solved. Summary of the invention

[0003] The present application provides an optical communication component, an optical communication device and an optical communication system, which can reduce noise and achieve low-cost and high-quality optical communication by combining plastic optical fiber and glass optical fiber.

[0004] In a first aspect, the present application provides an optical communication component. The optical communication component includes an optical transmitter and a first pigtail. The optical transmitter is connected to the first pigtail. The first pigtail and the first optical fiber are connected via a first optical port connector. The first pigtail is a plastic optical fiber. The first optical fiber is a glass optical fiber. The optical transmitter is used to generate a first optical signal, and transmit the first optical signal to another optical communication component via the first pigtail and the first optical fiber.

[0005] In an optional manner of the first aspect, the length of the first optical fiber is greater than or equal to 2 meters. The bandwidth-distance product of plastic optical fiber is generally smaller than that of glass optical fiber, and the loss is greater than that of glass optical fiber. For example, the cost of perfluorinated plastic optical fiber is much greater than that of glass optical fiber. When the distance between the optical communication component and another optical communication component is far, using glass optical fiber as the first optical fiber can increase the optical fiber bandwidth, control the loss and reduce the cost.

[0006] In an optional manner of the first aspect, the ratio of the core diameter of the first pigtail to the core diameter of the first optical fiber is between 1 / 3 and 3. When the difference in the core diameter ratio of the two optical fibers is large, a large optical coupling loss will result. Therefore, the present application can reduce the optical coupling loss, thereby improving the transmission distance and performance of optical communication.

[0007] In an optional manner of the first aspect, the length of the first pigtail ranges from 10 mm to 5000 mm. The length of the plastic optical fiber is generally positively correlated with the performance of reducing noise. However, a plastic optical fiber that is too long will also cause excessive loss and dispersion. Therefore, the present application can improve the communication quality of the optical communication system while reducing loss and dispersion.

[0008] In an optional mode of the first aspect, the distance between the optical transmitter and the first optical port connector is less than the length of the first pigtail. Bending can enhance the noise reduction performance of the plastic optical fiber per unit length. Since the loss and dispersion of the plastic optical fiber are large, the first pigtail arranged in a bent manner is adopted in the present application to reduce the length of the first pigtail. In addition, in the present application, in order to reduce noise, the space for placing the first pigtail is limited. By setting the first pigtail in a bent manner, the system volume can be reduced on the basis of reducing noise.

[0009] In an optional manner of the first aspect, the first pigtail includes a coil of N turns. N is greater than or equal to 1. In practical applications, N can be a number less than 1, such as 0.5. In the present application, in order to enhance the noise reduction performance of the plastic optical fiber per unit length by bending and to lay out the first pigtail of the required length in a limited space, N is a number greater than or equal to 1. The length of the plastic optical fiber is positively correlated with the noise reduction performance. Therefore, the present application can further reduce noise, thereby improving communication quality.

[0010] In an optional manner of the first aspect, the value range of N is between 1 and 50. In practical applications, a plastic optical fiber that is too long will increase transmission loss and increase dispersion, thereby reducing the bandwidth of the optical fiber channel, and a plastic optical fiber that is too long will increase the cost of the optical communication system. Therefore, the present application can improve the performance of the optical communication system on the basis of reducing loss and dispersion, and reduce costs.

[0011] In an optional manner of the first aspect, the radius of the coil is between 0.5 mm and 200 mm. Too small a radius can cause excessive optical loss in the curved optical structure. Too large a radius can cause the first pigtail to occupy too much space. Therefore, the present application can reduce optical loss while improving space utilization.

[0012] In an optional manner of the first aspect, the type of the first pigtail is a graded-index fiber (GI). Under the same length, the effect of reducing noise of the GI type plastic optical fiber is greater than that of the step-index fiber (SI) type plastic optical fiber. Therefore, the present application can further reduce noise, thereby improving the quality of communication.

[0013] In an optional manner of the first aspect, the optical communication component further includes a second pigtail and an optical receiver. The optical receiver is connected to the second pigtail. The second pigtail and the second optical fiber are connected via a first optical port connector. The second pigtail is a plastic optical fiber. The second optical fiber is a glass optical fiber. The optical receiver is used to receive a second optical signal from another optical communication component via the second pigtail and the second optical fiber, and convert the second optical signal into an electrical signal.

[0014] In an optional manner of the first aspect, the optical communication component further includes a beam splitter and an optical receiver. The optical receiver is used to receive a second optical signal from another optical communication component through the first optical fiber, the first pigtail and the beam splitter, and convert the second optical signal into an electrical signal. The second optical signal and the first optical signal have different wavelengths.

[0015] The second aspect of the present application provides an optical communication device. The optical communication device includes a processor and the optical communication component described in the first aspect or any optional manner of the first aspect. The processor is used to transmit a signal to be modulated to the optical communication component. The optical communication component is used to obtain a first optical signal according to the signal to be modulated.

[0016] In a third aspect, the present application provides an optical communication system. The optical communication system includes the optical communication device described in the second aspect and another optical communication device. The optical communication device and the other optical communication device are connected via a first optical fiber. The first optical fiber is a glass optical fiber. The optical communication device is used to transmit a first optical signal to the other optical communication device. The other optical communication device includes another processor and another optical communication component.

[0017] In a fourth aspect, the present application provides an optical communication system. The optical communication system includes an optical communication component, a first optical fiber, and another optical communication component. The optical communication component includes an optical transmitter and a first pigtail. The first pigtail and the first optical fiber are connected via a first optical port connector. The first pigtail is a plastic optical fiber. The first optical fiber is a glass optical fiber. The optical transmitter is used to generate a first optical signal, and transmit the first optical signal to another optical communication component via the first pigtail and the first optical fiber.

[0018] It should be understood that the description of the fourth aspect is similar to the optical communication component described in the first aspect or any optional embodiment of the first aspect. Therefore, the description of the fourth aspect can refer to the optical communication component described in the first aspect or any optional embodiment of the first aspect. For example, the length of the first optical fiber is greater than or equal to 2 meters. For another example, the length of the first pigtail ranges from 10 mm to 5000 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A first structural schematic diagram of an optical communication system provided in an embodiment of the present application;

[0020] Figure 2 A second structural schematic diagram of an optical communication system provided in an embodiment of the present application;

[0021] Figure 3 A third structural schematic diagram of the optical communication system provided in an embodiment of the present application;

[0022] Figure 4 A first structural schematic diagram of an optical communication component provided in an embodiment of the present application;

[0023] Figure 5 A second structural schematic diagram of an optical communication component provided in an embodiment of the present application;

[0024] Figure 6 A third structural schematic diagram of an optical communication component provided in an embodiment of the present application;

[0025] Figure 7 A first structural schematic diagram of an optical communication device provided in an embodiment of the present application;

[0026] Figure 8 A second structural schematic diagram of an optical communication device provided in an embodiment of the present application;

[0027] Fig. 9 This is a fourth structural schematic diagram of the optical communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The present application provides an optical communication component, an optical communication device, and an optical communication system. By combining plastic optical fiber and glass optical fiber, noise can be reduced to achieve low-cost and high-quality optical communication. It should be understood that the "first", "second", etc. used in the present application are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order. In addition, for the sake of simplicity and clarity, reference numbers and / or letters are repeated in multiple figures of the present application. Repetition does not indicate that there is a strict limiting relationship between various embodiments and / or configurations.

[0029] The optical communication system provided by the present application is applied to the field of optical communication. In the field of optical communication, optical communication can be performed between an optical transmitter and an optical receiver through optical fiber. Many factors in an optical communication system can affect noise. For example, optical fiber connectors, bending of optical fibers, jitter of optical fibers, and interface reflection of optical fibers. Noise can affect the quality of optical communication. Therefore, how to reduce the noise of an optical communication system is an urgent problem to be solved.

[0030] To this end, the present application provides an optical communication system. Figure 1 The first structural diagram of the optical communication system provided in the embodiment of the present application. Figure 1As shown, the optical communication system includes an optical communication component 101 and another optical communication component 102. The optical communication component 101 and the another optical communication component 102 are connected via a first optical fiber 103. The optical communication component 101 includes an optical transmitter 104 and a first pigtail 105. The optical transmitter 104 is connected to the first pigtail 105. The first pigtail 105 and the first optical fiber 103 are connected via a first optical port connector 106. The first pigtail 105 is a plastic optical fiber. The first optical fiber 103 is a glass optical fiber. The optical transmitter 104 can also be called an optical transmission module or an optical transmitter. The optical communication component 101 can also be called an optical transmission module or an optical transmitter with pigtails. The optical transmitter 104 is used to generate a first optical signal, and transmit the first optical signal to the other optical communication component 102 via the first pigtail 105 and the first optical fiber 103.

[0031] In the present application, by coupling the plastic optical fiber as a pigtail with the optical transmitter, the relative intensity noise of the light source, mode hopping noise, multipath interference noise and other noises that may affect the quality of optical communication can be reduced. Therefore, the present application can improve the quality of communication. And because the bandwidth-distance product of the plastic optical fiber is generally smaller than that of the glass optical fiber, the loss is greater than that of the glass optical fiber. The cost of the fully fluorinated plastic optical fiber, which has better performance than other plastic optical fibers, is much greater than that of the glass optical fiber. In order to increase the optical fiber bandwidth, control the loss and reduce the cost, the first optical fiber 103 is a glass optical fiber. The length of the first optical fiber 103 can be greater than or equal to 2 meters.

[0032] In an embodiment of the present application, in order to improve the noise reduction performance, a first pigtail of a certain length is required, and bending can enhance the noise reduction performance of the plastic optical fiber per unit length. Since the loss and dispersion of the plastic optical fiber are large, a bent first pigtail is used in the present application to reduce the length of the first pigtail. In the optical communication component 101, the space for placing the first pigtail 105 is limited, that is, the distance between the optical transmitter 104 and the first optical port connector 106 is limited. In order to improve the utilization of space, the embodiment of the present application can bend the first pigtail 105. At this time, the distance between the optical transmitter 104 and the first optical port connector 106 is less than the length of the first pigtail 105. For example, Figure 1 In the example of FIG. 1 , the distance between the optical transmitter 104 and the first optical port connector 106 is d. d is less than the length of the first pigtail 105.

[0033] According to the previous description, the bent first pigtail 105 can improve the utilization of space. Therefore, in practical applications, the first pigtail 105 can be bent into a coil of N turns. In addition, the length of the plastic optical fiber is positively correlated with the performance of reducing noise. In order to improve the performance of reducing noise, N can be a value greater than or equal to 1. It should be understood that N can be a non-integer, such as 0.5, 1.7, etc. According to the previous description, a plastic optical fiber that is too long will increase transmission loss and increase dispersion, thereby reducing the bandwidth of the optical fiber channel, and the cost of a perfluorinated plastic optical fiber with better performance is very high. In order to improve the performance of the optical communication system on the basis of reducing noise and reduce costs, the value of N can be less than 50. At this time, the value range of N is between 1 and 50.

[0034] In practical applications, the length of the plastic optical fiber is positively correlated with the performance of reducing noise. In order to improve the performance of reducing noise, the length of the first pigtail 105 can be greater than 10 mm. However, a plastic optical fiber that is too long will also cause excessive loss and dispersion. Therefore, in order to improve the communication quality of the optical communication system while reducing loss and dispersion, the length of the first pigtail 105 can be less than 5000 mm. The first pigtail 105 can include a coil of N turns and a straight portion. At this time, the length H of the first pigtail 105 can be calculated by the following formula. H = L + N × 2πr. Where r is the radius of the coil. L is the length of the straight portion of the first pigtail 105. When the length of the first pigtail 105 is between 10 mm and 5000 mm, the value range of N can be between 1 and 50, and the radius of the coil can be between 0.5 mm and 200 mm. For example, π is equal to 3.14, when r is equal to 100 mm, N is equal to 6, and L is equal to 323 mm, the length of the first pigtail 105 is equal to 4000 mm. For another example, when r is equal to 10 mm, N is equal to 10, and L is equal to 22 mm, the length of the first pigtail 105 is equal to 650 mm.

[0035] The types of the first pigtail 105 include GI and SI. Under the same length, the noise reduction performance of the GI type plastic optical fiber is greater than that of the SI type plastic optical fiber. In order to further reduce noise, the embodiment of the present application can use a GI type plastic optical fiber as the first pigtail 105.

[0036] In the embodiment of the present application, by combining the plastic optical fiber and the glass optical fiber, the cost of the optical communication system can be reduced on the basis of reducing noise. The difference between the core diameter of the plastic optical fiber and the core diameter of the glass optical fiber may be large, and a large core diameter difference will lead to a large optical loss. In order to reduce the optical loss, the embodiment of the present application can use plastic optical fiber and glass optical fiber with similar core diameters. For example, the ratio of the core diameter of the first pigtail 105 to the core diameter of the first optical fiber 103 is between 1 / 3 and 3. "1 / 3" means one third. For another example, the ratio of the core diameter of the first pigtail 105 to the core diameter of the first optical fiber 103 is 2. However, in practical applications, the core diameter of the plastic optical fiber is generally much larger than the core diameter of the glass optical fiber. In order to reduce the difference in core diameter, it may be necessary to reduce the core diameter of the plastic optical fiber or increase the core diameter of the glass optical fiber, thereby introducing additional manufacturing costs. Therefore, in practical applications, in order to reduce the manufacturing cost of the optical fiber, the ratio of the core diameter of the first pigtail 105 to the core diameter of the first optical fiber 103 can be greater than or equal to 3.

[0037] The optical communication system provided in the embodiment of the present application can be applied to a single-fiber bidirectional communication system and a dual-fiber bidirectional communication system, which are described below respectively.

[0038] Figure 2 This is a second structural diagram of the optical communication system provided in the embodiment of the present application. Figure 2 As shown, in Figure 1 On the basis of, the optical communication component 101 also includes a beam splitter 201 and an optical receiver 207. Another optical communication component 102 includes a second optical port connector 202, a third pigtail 203, a beam splitter 204, an optical receiver 205 and an optical transmitter 206. The second optical port connector 202 is used to connect the first optical fiber 103 and the third pigtail 203. The optical receiver 205 is used to receive the first optical signal from the optical communication component 101 and convert the first optical signal into an electrical signal. The optical transmitter 206 is used to transmit the second optical signal to the optical communication component 101. The beam splitter 201 and the beam splitter 204 are used to separate the first optical signal and the second optical signal. The wavelengths of the second optical signal and the first optical signal are different. The optical receiver 207 is used to receive the second optical signal from another optical communication component 102 and convert the second optical signal into an electrical signal. The optical receiver 207 can also be called an optical receiving module or an optical receiver. It should be understood that in practical applications, the optical receiver 207 and the optical transmitter 104 can be integrated on a single board. The integrated single board can also be called an optical module, an optical transceiver module or an optical transceiver. In this case, the optical communication component 101 can also be called an optical module with pigtails, an optical transceiver module or an optical transceiver.

[0039] Figure 3 This is a third structural diagram of the optical communication system provided in the embodiment of the present application. Figure 3 As shown, in Figure 1On the basis of, the optical communication component 101 also includes a second pigtail 304 and an optical receiver 207. Another optical communication component 102 includes a second optical port connector 202, a second pigtail 301, an optical receiver 205, an optical transmitter 206 and a fourth pigtail 302. The second optical port connector 202 is used to connect the first optical fiber 103 and the third pigtail 301. The optical receiver 205 is used to receive a first optical signal from the optical communication component 101 through the first optical fiber 103 and the third pigtail 301, and convert the first optical signal into an electrical signal. The second optical port connector 202 is also used to connect the second optical fiber 303 and the fourth pigtail 302. The optical transmitter 206 is used to transmit a second optical signal to the optical communication component 101 through the second optical fiber 303 and the fourth pigtail 302. The wavelength of the first optical signal and the wavelength of the second optical signal can be the same or different. The first optical port connector 106 is also used to connect the second optical fiber 303 and the second pigtail 304. The optical receiver 207 is used to receive a second optical signal from another optical communication component 102 through the second optical fiber 303 and the second pigtail 304 , and convert the second optical signal into an electrical signal.

[0040] Below Figure 3 Taking the optical communication system in FIG. 1 as an example, the structure of the optical communication component 101 is exemplarily described. Figure 4 This is a first structural diagram of an optical communication component provided in an embodiment of the present application. Figure 4 As shown, in the optical communication component 101, the optical transmitter 104 includes a power amplifier 401, a bias device 402 and a laser 403. The power amplifier 401 is used to receive an analog electrical signal, amplify the analog electrical signal, and transmit the amplified analog electrical signal to the bias device 402. The bias device 402 is used to superimpose the DC power supply and the analog electrical signal to obtain a superimposed electrical signal. The bias device 402 is also used to transmit the superimposed electrical signal to the laser. The laser 403 is used to receive the superimposed electrical signal from the bias device 402 and generate a first optical signal according to the superimposed electrical signal. The optical receiver 207 includes a photodetector-transimpedance amplifier 405 and a power amplifier 404. The photodetector-transimpedance amplifier 405 is used to convert the second optical signal into an analog electrical signal and transmit the analog electrical signal to the power amplifier 404. The power amplifier 404 is used to amplify the power of the analog electrical signal and output the amplified analog electrical signal.

[0041] It should be understood that Figure 4It is only an example of the optical communication component 101 provided in the embodiment of the present application. Those skilled in the art can make adaptive modifications to the optical communication component 101 as needed. For example, in practical applications, the optical communication component 101 can also include a digital-to-analog converter and an analog-to-digital converter. The digital-to-analog converter is used to receive digital electrical signals, convert the digital electrical signals into analog electrical signals, and transmit the analog electrical signals to the power amplifier 401. The digital-to-analog converter is used to convert the analog electrical signals output by the power amplifier 404 into digital electrical signals. For another example, the optical communication component 101 does not include the second pigtail 304. The optical receiver 207 is directly connected to the second optical fiber 303. The other optical communication component 102 does not include the third pigtail 301. The optical receiver 205 is directly connected to the first optical fiber 103. For another example, the first optical port connector 106 includes two independent parts, namely connector 1 and connector 2. Connector 1 is used to connect the first optical fiber 103 and the first pigtail 105. Connector 2 is used to connect the second optical fiber 303 and the second pigtail 304. In Figure 4 In the example of FIG. 1 , the optical communication component 101 includes a first optical port connector 106 . In practical applications, the first optical port connector 106 can be located outside the optical communication component 101 . Figure 5 This is a second structural diagram of an optical communication component provided in an embodiment of the present application. Figure 5 As shown, in Figure 4 On the basis of FIG. 1 , the first optical port connector 106 is located outside the optical communication component 101 . In this case, the optical communication component 101 does not include the first optical port connector 106 .

[0042] Figure 6 This is a third structural diagram of an optical communication component provided in an embodiment of the present application. Figure 6 As shown, in the optical communication component 101, the optical transmitter 104 includes an optoelectronic physical layer chip 601 and a laser 602. The optoelectronic physical layer chip 601 can include functions such as digital signal processing, light source driving, and limiting amplification. The optoelectronic physical layer chip 601 is used to receive digital electrical signals, perform corresponding processing on the digital electrical signals, and drive the laser 602 to perform photoelectric conversion to obtain a first optical signal. The optoelectronic physical layer chip 601 can also be split into two or more electrical chips to realize its functions. For example, the optoelectronic physical layer chip 601 can be split into a digital signal processing chip and a light source driving chip that integrate functions such as receiving end limiting amplification. The optical receiver 207 includes an optoelectronic physical layer chip 601 and a photodetector-transimpedance amplifier 603. The photodetector-transimpedance amplifier 603 is used to convert the second optical signal into an electrical signal, isolate the direct current and perform transimpedance amplification, and transmit the electrical signal to the optoelectronic physical layer chip 601. The optoelectronic physical layer chip 601 performs limiting amplification on the received electrical signal and outputs the amplified electrical signal. In practical applications, the receiving-end limiting amplification function of the optoelectronic physical layer chip 601 can also be integrated into the photodetector-transimpedance amplifier 603 .

[0043] It should be understood that in practical applications, the structure of the other optical communication component 102 is similar to the structure of the optical communication component 101. Therefore, the description of the structure of the other optical communication component 102 can refer to the description of the optical communication component 101.

[0044] Below Figure 3 Taking the optical communication component 101 in the example, the optical communication device provided by the present application is described. The optical communication equipment described in the present application can be a fiber to the room (FTTR) device, a campus network optical radio unit (ORU), an access point (AP), a pico remote radio unit (pRRU) in a wireless network base station / pole station backhaul, a radio hub (RHUB), a server or switch inside a data center, etc. The FTTR device can be a main FTTR device or a slave FTTR device. The AP can be a distributed AP. The switch can be a top of the rack (TOR) switch or a spine switch.

[0045] Figure 7 This is a first structural diagram of an optical communication device provided in an embodiment of the present application. Figure 7 As shown, the optical communication device 700 includes a processor 701 and an optical communication component 101. The processor 701 can be a central processing unit (CPU), a network processor (NP), a graphics processor, or a combination of a CPU and a NP. The processor 701 can further include a hardware chip or other general-purpose processor. The above-mentioned hardware chip can be an application specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The processor 701 is used to transmit a digital electrical signal to the optical communication component 101. The digital electrical signal can also be called a signal to be modulated. The optical communication component 101 is used to obtain a first optical signal according to the signal to be modulated and output the first optical signal. The optical communication component 101 can also be used to receive a second optical signal, convert the second optical signal into a digital electrical signal, and transmit the digital electrical signal to the processor 701.

[0046] In other embodiments, the optical communication device 700 may further include a memory 702. The memory 702 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), or a flash memory. The volatile memory may be a random access memory (RAM). The memory 702 may be used to store digital electrical signals.

[0047] Figure 8 This is a second structural diagram of the optical communication device provided in the embodiment of the present application. Figure 8 As shown, in Figure 7 Based on the optical communication device 700, the optical communication component 101 and the first component 801 include the processor 701 and the storage 702. The optical communication component 101 also includes an electrical connector 802. The optical communication component 101 can be connected to the first component 801 in a pluggable manner through the electrical connector 802. For example, the electrical connector 802 is a gold finger.

[0048] Fig. 9 This is a fourth structural diagram of the optical communication system provided in the embodiment of the present application. Fig. 9 As shown, the optical communication system 900 includes an optical communication device 700 and another optical communication device 901. The optical communication device 700 is used to transmit a first optical signal to the other optical communication device 901. For the description of the optical communication device 700, reference can be made to the aforementioned Figure 7 or Figure 8 For the description of another optical communication device 901, reference can be made to the aforementioned Figures 1 to 3 Another optical communication device 901 can include another optical communication component 102.

[0049] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. An optical communication component, characterized in that: The invention comprises an optical transmitter and a first pigtail, wherein: The optical transmitter is connected to the first pigtail, the first pigtail and the first optical fiber are connected via a first optical port connector, the first pigtail is a plastic optical fiber, and the first optical fiber is a glass optical fiber; The optical transmitter is used to generate a first optical signal, and transmit the first optical signal to another optical communication component through the first pigtail and the first optical fiber.

2. The optical communication component according to claim 1, characterized in that: The length of the first optical fiber is greater than or equal to 2 meters.

3. The optical communication component according to claim 1 or 2, characterized in that: The ratio of the core diameter of the first pigtail to the core diameter of the first optical fiber is between 1 / 3 and 3.

4. The optical communication component according to any one of claims 1 to 3, characterized in that: The length of the first pigtail is in the range of 10 mm to 5000 mm.

5. The optical communication component according to any one of claims 1 to 4, characterized in that: The distance between the optical transmitter and the first optical port connector is smaller than the length of the first pigtail.

6. The optical communication component according to claim 5, characterized in that: The first pigtail includes a coil of N turns, where N is greater than or equal to 1.

7. The optical communication component according to claim 6, characterized in that: The value range of N is between 1 and 50.

8. The optical communication component according to claim 5 or 6, characterized in that: The radius of the coil is between 0.5 mm and 200 mm.

9. The optical communication component according to any one of claims 1 to 8, characterized in that: The type of the first pigtail is GI.

10. The optical communication component according to any one of claims 1 to 9, characterized in that: The optical communication assembly further comprises a second pigtail and an optical receiver, wherein: The optical receiver is connected to the second pigtail, the second pigtail and the second optical fiber are connected via the first optical port connector, the second pigtail is a plastic optical fiber, and the second optical fiber is a glass optical fiber; The optical receiver is used for receiving a second optical signal from the other optical communication component through the second pigtail fiber and the second optical fiber, and converting the second optical signal into an electrical signal.

11. The optical communication component according to any one of claims 1 to 10, characterized in that: The optical communication component further comprises a beam splitter and an optical receiver, wherein: The optical receiver is used to receive a second optical signal from the other optical communication component through the first optical fiber, the first pigtail and the beam splitter, and convert the second optical signal into an electrical signal. The second optical signal and the first optical signal have different wavelengths.

12. An optical communication device, characterized in that: The optical communication device comprises a processor and an optical communication component as claimed in any one of claims 1 to 11, wherein: The processor is used to transmit the signal to be modulated to the optical communication component, and the optical communication component is used to obtain a first optical signal according to the signal to be modulated.

13. An optical communication system, characterized in that: The optical communication device comprises the optical communication device according to claim 12 and another optical communication device, wherein the optical communication device and the another optical communication device are connected via a first optical fiber, and the optical communication device is used to transmit a first optical signal to the another optical communication device.

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