WO2023246503A1 - Adaptateur et système d'interconnexion optique embarqué - Google Patents

Adaptateur et système d'interconnexion optique embarqué Download PDF

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Publication number
WO2023246503A1
WO2023246503A1 PCT/CN2023/098651 CN2023098651W WO2023246503A1 WO 2023246503 A1 WO2023246503 A1 WO 2023246503A1 CN 2023098651 W CN2023098651 W CN 2023098651W WO 2023246503 A1 WO2023246503 A1 WO 2023246503A1
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WO
WIPO (PCT)
Prior art keywords
wavelength division
optical
adapter
input signal
signal lights
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PCT/CN2023/098651
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English (en)
Chinese (zh)
Inventor
李心白
王文怡
赵俊英
黄火清
于飞
史锡婷
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023246503A1 publication Critical patent/WO2023246503A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H04B10/25752—Optical arrangements for wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor

Definitions

  • the present application relates to the field of optical communications, and more specifically, to an adapter and an on-board optical interconnection system.
  • Board-level optical interconnection refers to a technology that uses photons as a carrier to transmit and exchange information between chips on a circuit board. The transmitter converts electrical signals into optical signals, and the detector at the receiving end converts the optical signals into for electrical signals.
  • WDM wavelength division multiplexing
  • PSM parallel single mode
  • This application provides an adapter and an on-board optical interconnection system that can realize switching between the parallel optical fiber working mode and the wavelength division multiplexing working mode of the customer interface, thereby realizing the connection between the non-wavelength division system and the wavelength division system.
  • inventions of the present application provide an adapter.
  • the device includes: a first optical interface and at least one wavelength division multiplexer.
  • the connection relationship between the first optical interface and the at least one wavelength division multiplexer is: the first port of the first optical interface is pluggable to the device, and the second port of the first optical interface is connected to the device.
  • the input ports of the at least one wavelength division multiplexer are connected through an equalized cross-connection method, and the output port of the at least one wavelength division multiplexer is connected to the first transmission optical fiber.
  • the function of the first optical interface and the at least one wavelength division multiplexer is: the first optical interface is used to receive N first input signal lights from the device and output the N first Input signal light to the at least one wavelength division multiplexer, and the N first input signal lights are signal lights corresponding to the parallel optical fiber working mode.
  • the at least one wavelength division multiplexer is used to couple M first input signal lights among the N first input signal lights to generate first coupled signal lights, and the M first input signal lights have different wavelengths.
  • the first coupled signal light is in wavelength division multiplexing mode Corresponding signal light.
  • N is an integer greater than or equal to 2
  • M is an integer greater than or equal to 1
  • M is less than N.
  • the adapter provided by the embodiment of the present application can be plugged into and unplugged from the on-board optical interconnection equipment.
  • the corresponding signal light of the equipment in the parallel optical fiber working mode can be converted into The signal light corresponding to the wavelength division multiplexing mode. Realize the switching of the working mode of the customer interface to facilitate user operation and use.
  • the adapter further includes: at least one wavelength demultiplexer.
  • the input end of the at least one wavelength decomposition multiplexer is connected to the second transmission optical fiber, and the output end of the at least one wavelength decomposition multiplexer is connected to the second port of the first optical interface.
  • the at least one wavelength decomposition multiplexer is used to optically demultiplex the second coupled signal into P second input signal lights, and output the P second input signal lights to the first optical interface of the first optical interface. For two ports, the P second input signal lights have different wavelengths.
  • the first optical interface is used to input the P second input signal lights to the device, where P is an integer greater than 1.
  • the output port of the at least one wavelength division multiplexer is connected to the first transmission fiber, including: the output port of the at least one wavelength division multiplexer passes through Connected to the first transmission optical fiber by fusion splicing.
  • the input port of the at least one wavelength division multiplexer is connected to the second transmission optical fiber, including: the input port of the at least one wavelength division multiplexer is connected to the second transmission optical fiber through fusion splicing.
  • the adapter further includes a second interface.
  • the output port of the at least one wavelength division multiplexer is connected to the first transmission fiber, including: the output port of the at least one wavelength division multiplexer is connected to the first transmission fiber through the second optical interface.
  • the input port of the at least one wavelength demultiplexer is connected to the second transmission fiber, including: the input port of the at least one wavelength demultiplexer is connected to the second transmission fiber through the second optical interface.
  • the second interface is used to input the first coupled signal light into the first transmission fiber, and transmit the second coupled signal light of the second transmission fiber to the at least one wave decomposition in the multiplexer.
  • the second optical interface is connected to the first transmission fiber through a pluggable optical port adapter, and the second optical interface is connected to the second transmission optical fiber.
  • the optical fibers are connected through pluggable optical port adapters.
  • the at least one wavelength division multiplexer and the at least one wavelength decomposition multiplexer are tapered fiber wavelength division multiplexers and tapered fiber wave decomposition multiplexer.
  • the adapter due to the low insertion loss, polarization-independent, and temperature-insensitive characteristics of the tapered fiber wavelength division multiplexer and the tapered fiber wavelength decomposition multiplexer, the adapter has stable operating performance and strong reliability. At the same time, the tapered optical fiber wavelength division multiplexer and the tapered optical fiber wave demultiplexer have a long and narrow shape.
  • the adapter can be set within the diameter of the optical cable to save space.
  • inventions of the present application provide an adapter for switching the working mode of a device.
  • the device includes: a first optical interface, N photoelectric detectors, N photoelectric modulators, M wavelength division multiplexers, and a power interface.
  • the first port of the first optical interface is pluggable into the device
  • the second port of the first optical interface is connected to the input ports of the N photoelectric detectors
  • the outputs of the N photoelectric modulators The port is connected to the input ports of the M wavelength division multiplexers, and the output ports of the M wavelength division multiplexers are connected to the first transmission optical fiber.
  • the first optical interface is used to receive N first input signal lights from the device, and input the N first input signal lights to the N optical signals respectively.
  • the N first input signal lights are signal lights corresponding to the parallel optical fiber working mode.
  • the N photoelectric detectors are used to convert the N first input signal lights into N electrical signals, and output the N electrical signals to the N photoelectric modulators respectively.
  • the N photoelectric modulators generate N second input signal lights based on the N electrical signal modulation, and output the N second input signal lights to the M wavelength division multiplexers respectively, so The N second input signal lights have different wavelengths.
  • the M wavelength division multiplexers are used to couple the N second input signal lights to generate M first coupled signal lights, and transmit the M first coupled signals to the first transmission optical fiber.
  • Light, the M first coupled signal lights are signal lights corresponding to the wavelength division multiplexing mode.
  • the power interface is used to power the adapter. Among them, N is an integer greater than or equal to 2, M is an integer greater than or equal to 1, and N is greater than M.
  • the photoelectric conversion element in the adapter is used to convert gray light to electrical signal and then to colored light, which can avoid the replacement of the light engine when the device uses the adapter to change the working mode, and further realizes the flexible operation of the customer interface.
  • the adapter further includes: P wave demultiplexers.
  • the input ports of the P demultiplexers are connected to the second transmission optical fiber, and the output ends of the P demultiplexers are connected to the second port of the first optical interface.
  • Each of the P wavelength decomposition multiplexers is configured to receive a second coupled signal light from the second transmission fiber, and optically demultiplex the second coupled signal into Q th Three input signal lights are input, and the Q third input signal lights are output to the second port of the first optical interface, and the wavelengths of the Q third input signal lights are different.
  • the first optical interface is used to input the Q third input signal lights to the device.
  • P is an integer greater than or equal to 1
  • Q is an integer greater than or equal to 2.
  • the adapter further includes: N amplifiers, the input ports of the N amplifiers are respectively connected to the output ports of the N photodetectors, and the The output ports of the N amplifiers are respectively connected to the input ports of the N photoelectric modulators.
  • the N amplifiers are used to amplify the amplitudes of the N electrical signals, and output the amplified N electrical signals to the N optoelectronic modulators respectively.
  • the amplitude of the electrical signal is amplified through the amplifier, thereby improving the electro-optical conversion efficiency of the adapter and further improving the performance of the adapter.
  • the output ports of the M wavelength division multiplexers are connected to the first transmission optical fibers, including: the output ports of the M wavelength division multiplexers pass through Connected to the first transmission optical fiber by fusion splicing.
  • the input ports of the P wave demultiplexers are connected to the second transmission optical fiber, including: the input ports of the P wave demultiplexers are connected to the second transmission optical fiber through fusion splicing.
  • the adapter further includes a second interface.
  • the output ports of the M wavelength division multiplexers are connected to the first transmission optical fiber, including: the output ports of the M wavelength division multiplexers are connected to the first transmission optical fiber through the second optical interface.
  • the input ports of the P wave demultiplexers are connected to the second transmission optical fiber, including: the input ports of the P wave demultiplexers are connected to the second transmission optical fiber through the second optical interface.
  • the second interface is used to input the M first coupled signal lights into the first transmission optical fiber, and transmit the second coupled signal light of the second transmission optical fiber to the P wave waves. in the demultiplexer.
  • the second optical interface is connected to the first transmission fiber through a pluggable optical port adapter, and the second optical interface is connected to the second transmission optical fiber.
  • Optical fiber through pluggable optical port adapter connected.
  • the M wavelength division multiplexers and the P wavelength decomposition multiplexers are tapered fiber wavelength division multiplexers and tapered fiber wave decomposition multiplexer.
  • the adapter has stable working performance and strong reliability.
  • the adapter can be set within the diameter of the optical cable, thereby saving space.
  • the second interface and the power supply interface are integrated into an optoelectronic composite connector.
  • the integration level of the adapter is further improved by integrating the power supply interface with the input and output interface of the adapter.
  • embodiments of the present application provide an on-board optical interconnection system.
  • the system includes: an on-board optical module, a panel optical port adapter, at least one light source pool module, and an adapter provided by the first aspect or any one of the above implementations of the first aspect.
  • the system includes: a panel optical module, a panel optical port adapter, a light source pool module, and an adapter provided in the second aspect or any one of the above implementations of the second aspect.
  • the at least one light source pool module is used to generate N light beams to the on-board optical module.
  • the on-board optical module generates the N first input signal lights based on the N light beams, and outputs the N first input signal lights to the panel optical port adapter.
  • the panel optical port adapter is used to output the N first input signal lights to the adapter.
  • each of the at least one light source pool module includes at least one thermoelectric cooler and at least two lasers.
  • the at least one thermoelectric cooler is used to adjust the temperature of one of the at least two lasers so that the at least two lasers operate at different temperatures. At least two beams among the N beams are output.
  • the electrothermal refrigerator in the light source pool module is used to realize the temperature difference between lasers based on the temperature drift characteristics of the laser. This causes the laser to produce beams of different wavelengths.
  • embodiments of the present application provide an optical transmission method.
  • the method includes: receiving N first input signal lights from the device, where the N first input signal lights are signal lights corresponding to the parallel optical fiber working mode. Couple M first input signal lights among the N first input signal lights to generate first coupled signal lights. The M first input signal lights have different wavelengths. The first coupled signal lights are waveforms. The signal light corresponding to the multiplexing mode.
  • N is an integer greater than 1, and M is less than N.
  • the method further includes: optically demultiplexing the second coupled signal into P second input signal lights, and outputting the P second input signal lights To the second port of the first optical interface, the wavelengths of the P second input signal lights are different.
  • the P second input signal lights are input to the device. Among them, P is an integer greater than 1.
  • embodiments of the present application provide an optical transmission method.
  • the method includes: receiving N first input signal lights from the device, where the N first input signal lights are signal lights corresponding to the parallel optical fiber working mode.
  • the N first input signals are optically converted into N electrical signals.
  • N second input signal lights are generated based on the N electrical signal modulation, and the N second input signal lights have different wavelengths.
  • couple the N second input signal lights to M first coupled signal lights are generated, and the M first coupled signal lights are signal lights corresponding to the wavelength division multiplexing mode.
  • N and M are integers greater than 2, and N is greater than M.
  • the method further includes: receiving a second coupled signal light from the second transmission fiber, and optically demultiplexing the second coupled signal into Q third inputs
  • the wavelengths of the Q third input signal lights are different.
  • the Q third input signal lights are input to the device.
  • P is an integer greater than or equal to 1
  • Q is an integer greater than 2.
  • the generating N second input signal lights based on the N electrical signal modulation includes: amplifying the amplitude of the N electrical signals, and based on the amplification The N electrical signals after the amplitude are modulated to generate N second input signal lights.
  • embodiments of the present application provide a communication device, which includes the above-mentioned first aspect or the adapter in any possible implementation of the first aspect, or the communication device includes the above-mentioned second aspect or the third aspect.
  • An adapter in either of two possible implementations.
  • inventions of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program (which may also be called a code, or an instruction), and when it is run on a computer, it causes the computer to perform the method in the above-mentioned fourth aspect or any of the possible implementations of the fourth aspect, Or cause the computer to execute the method in the above fifth aspect or any possible implementation manner of the fifth aspect.
  • a computer program which may also be called a code, or an instruction
  • inventions of the present application provide a computer program product.
  • the computer program product includes: a computer program, when the computer program is run, causes the computer to execute the above fourth aspect or the method in any possible implementation manner of the fourth aspect, or causes the computer to execute the above fifth aspect or the fifth aspect. A method in any of the possible implementations.
  • inventions of the present application provide a communication device.
  • the device includes a processor and a memory, the processor is coupled to the memory, and the processor is used to control the device to implement the method in the above fourth aspect or any of the possible implementations of the fourth aspect, or to implement the above A method in the fifth aspect or any possible implementation manner of the fifth aspect.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • the memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated on the same chip as the processor, or can be set in different On the chip, the embodiment of the present application does not limit the type of memory and the arrangement of the memory and the processor.
  • ROM read-only memory
  • relevant data interaction processes such as sending a request message, may be a process of outputting a request message from the processor, and receiving a response message may be a process of receiving the message by the processor.
  • the data output by the processing can be output to the transmitter, and the input data received by the processor can come from the receiver.
  • the transmitter and receiver can be collectively called a transceiver.
  • the processing device in the ninth aspect may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.
  • the processor When implemented by software, the processor may be a general-purpose processor and implemented by reading software code stored in a memory.
  • the memory may be integrated in the processor or may be located outside the processor and exist independently.
  • Figure 1 shows the on-board optical interconnection system architecture in wavelength division multiplexing mode.
  • Figure 2 shows the on-board optical interconnection system architecture of parallel optical fiber operating mode.
  • Figure 3 shows a communication device 300 using optical interconnection technology suitable for embodiments of the present application.
  • Figure 4 is a schematic block diagram of an adapter 400 provided by an embodiment of the present application.
  • Figure 5 is a schematic block diagram of an adapter 500 provided by an embodiment of the present application.
  • Figure 6 is a schematic structural diagram of an adapter 600 provided by this application.
  • Figure 7 is a schematic flow chart of an optical transmission method 700 provided by an embodiment of the present application.
  • Figure 8 is a schematic flow chart of an optical transmission method 800 provided by an embodiment of the present application.
  • Figure 9 is a schematic flow chart of an optical transmission method 900 provided by an embodiment of the present application.
  • Figure 10 is a schematic flow chart of an optical transmission method 1000 provided by an embodiment of the present application.
  • Figure 11 is a schematic block diagram of a communication device 1100 provided by an embodiment of the present application.
  • Figure 12 is a schematic block diagram of a communication device 1200 provided by an embodiment of the present application.
  • words such as “exemplary” or “for example” are used to express examples, illustrations or illustrations, and embodiments or designs described as “exemplary” or “for example” should not are to be construed as preferred or advantageous over other embodiments or designs.
  • the use of words such as “exemplary” or “such as” is intended to present related concepts in a concrete manner that is easier to understand.
  • the on-board optical interconnection system mainly includes three components, which are multiple on-board optical modules (on board optics, OBO) or optical engines (optical engines, OE), multiple A (panel) optical port adapter may be, for example, a multi-fiber push on (MPO) optical port adapter or multiple light source pool modules.
  • the board optical module contains multiple independent modulators and receivers.
  • the signal fiber of the on-board optical module is connected to the optical cable outside the device through the optical port adapter on the device panel.
  • the working modes of the on-board optical interconnection system are divided into wavelength division multiplexing working mode (shown in Figure 1) and parallel optical fiber working mode (shown in Figure 2).
  • the light source pool When working in wavelength division multiplexing mode, the light source pool is a colored light source. At this time, each light source pool module can contain multiple lasers. Normally, each laser is supplied to K independent modulators in the panel optical module through 1:K power splitting. It should be understood that K is An integer greater than 1. In Figure 1, K is 2. When working in parallel optical fiber working mode, the light source pool is a gray light source.
  • Equally divided crossover As shown in Figure 1, since the wavelength output by the light source pool in the on-board optical interconnection system is input to the on-board optical module, the wavelength of light received by the adjacent modulation channels is the same. After being modulated by the electrical signal , the signal light output by adjacent modulators also has the same wavelength, so it cannot be directly connected to the wavelength division multiplexer. Therefore, equal cross-over can be achieved between the 1:K optical splitter and the modulator by using on-chip devices such as waveguide cross-over on the optical chip. Or, between the modulator and the wavelength division multiplexer, the optical chip uses on-chip devices such as waveguide crossovers to achieve equalized crossover, or the optical fiber crossover is used to achieve equalized crossover outside the optical chip.
  • Wavelength division multiplexing working mode When the equipment in the on-board optical interconnection system works in the wavelength division multiplexing working mode, the light source pool module on the equipment panel uses a colored light source pool module to output multiple wavelengths that comply with relevant communication protocols. laser, and achieve the effect of transmitting multi-wavelength signal light within a single transmission fiber through a wavelength division multiplexer. Correspondingly, a wavelength demultiplexer is used to receive multi-wavelength signal light transmitted from other devices.
  • Parallel optical fiber working mode is also called non-wavelength division multiplexing working mode.
  • the light source pool on the equipment panel uses a gray light source pool module. At this time, there is no need for a wavelength division multiplexer and a wavelength decomposition multiplexer in the system.
  • a single transmission fiber transmits one wavelength.
  • FIG. 3 shows a communication device 300 using optical interconnection technology suitable for embodiments of the present application.
  • the communication device 300 may be a cluster router or other types of communication devices, such as switches, transmission network equipment, optical line terminals (OLT) of access networks, etc.
  • the communication device 300 includes an optical interconnection system 30 and a system circuit board 50 .
  • the communication device 300 exchanges information with other external devices through the optical interconnection system 30 .
  • the optical interconnection system 30 includes a substrate 301 and a signal transceiver unit 303 provided on the substrate 301.
  • the substrate 301 includes a printed circuit board (PCB).
  • PCB printed circuit board
  • the signal transceiver unit 303 includes a main chip (payload IC) 31 and a plurality of onboard optical modules 33 (marked with OBO in Figure 3).
  • the onboard optical module 33 is used to receive the output electrical signal output by the main chip 31 and convert the output electrical signal into an output optical signal and output it to the opposite end, and to receive the input optical signal from the opposite end and convert it into an input electrical signal and transmit it to the main chip 31 .
  • the optical interconnection system 30 also includes an optical cross component 305
  • the signal transceiver unit 303 also includes an input and output optical fiber 37.
  • the input and output optical fibers 37 are connected between the optical interface of each signal transceiver unit 303 and the optical cross component 305 .
  • the optical cross-connect component 305 is unnecessary in some hardware systems, such as line cards and switches.
  • FIG. 3 only shows one structure of the communication device 300, and the present application does not limit the structure of the communication device. That is, the embodiments of the present application are also applicable to communication devices with other structures.
  • the working status of the system has been determined when it leaves the factory. For example, it can be determined by whether the on-board optical module in the equipment contains a wavelength division multiplexer and a wavelength division multiplexer. Use the device to determine the working status of the device. In other words, due to the limitations of the equipment in the panel optical interconnection system, it is difficult for users to flexibly adjust the working status of the equipment on the user interface, thus making the equipment subject to usage scenarios.
  • embodiments of the present application provide an adapter and a communication system.
  • the pluggable adapter provided by the embodiment of the present application is used in conjunction with the optical communication device shown in Figure 3 above (that is, inserting the adapter through manual operation (on the optical port adapter of the optical communication equipment)
  • the signal light emitted by the optical communication equipment in the non-wavelength division multiplexing working state can be converted into the signal light emitted by the optical communication equipment in the wavelength division multiplexing working state.
  • the optical communication device when the optical communication device is combined with the adapter provided in the embodiment of the present application, the optical communication device generates a signal equivalent to operating in a wavelength division multiplexing working state. Since the adapter provided by the embodiment of the present application is pluggable into the optical communication equipment, switching of the user end can be realized, further improving the flexibility of the working state transition of the optical communication equipment.
  • FIG. 4 is a schematic block diagram of an adapter 400 provided by an embodiment of the present application.
  • the adapter 400 includes a first optical interface 410 , a wavelength division multiplexer 421 and a wavelength division multiplexer 422 .
  • the first optical interface 410 includes 8 first ports and 8 second ports.
  • 8 first ports are pluggable on the optical interface (for example, the optical interface model MPO) on the equipment panel as shown in Figure 3.
  • the eight second ports are connected to the input ports of the wavelength division multiplexer 421 and the wavelength division multiplexer 422 through equalization cross-connection.
  • the output port of the wavelength division multiplexer 421 is connected to the first transmission optical fiber 441
  • the output port of the wavelength division multiplexer 422 is connected to the first transmission optical fiber 442 .
  • the input ports of the wavelength division multiplexer 421 and the wavelength division multiplexer 422 and the second port of the device panel optical interface implement equalization crossover through optical fiber crossover.
  • equalization crossover can be achieved via on-chip waveguide crossover of a wavelength division multiplexer.
  • the adapter 400 provided by the embodiment of the present application when the adapter 400 provided by the embodiment of the present application is inserted into the on-board optical interconnection device in the parallel optical fiber working mode as shown in Figure 3, the device in the parallel optical fiber working mode passes through After the optical port adapter outputs 8 first input signal lights ( ⁇ 1- ⁇ 4 as shown in Figure 4), the 8 first ports of the first optical interface 410 of the adapter 400 receive the 8 first input signal lights from the device, And the eight first input signal lights are output to the wavelength division multiplexer 421 and the wavelength division multiplexer 422 through the eight second ports respectively.
  • the wavelength division multiplexer 421 For the wavelength division multiplexer 421, it couples 4 first input signal lights ( ⁇ 1- ⁇ 4) with different wavelengths among the 8 first input signal lights, generates the first coupled signal light, and outputs it to the first transmission Fiber 441. Similarly, the wavelength division multiplexer 421 couples four first input signal lights with different wavelengths to generate a first coupled signal light, and outputs the first coupled signal light to the first transmission optical fiber 442 . At this point, the adaptation 400 has completed converting the output signal light of the device in the parallel optical fiber working mode into the output signal light in the wavelength division multiplexing working mode.
  • the adapter provided by the embodiment of the present application can be plugged into and unplugged from the optical port of the on-board optical interconnection device to convert the output signal light of the device in the parallel optical fiber working mode into the output in the wavelength division multiplexing working mode.
  • Signal light can achieve the effect of changing the working mode of the customer interface.
  • the adaptation 300 further includes a wavelength demultiplexer 431 and a wavelength demultiplexer 432.
  • the input end of the wavelength decomposition multiplexer 431 is connected to the second transmission optical fiber 451
  • the input end of the wavelength decomposition multiplexer 432 is connected to the second transmission optical fiber 451
  • the wavelength decomposition multiplexer 431 and the wavelength decomposition multiplexer 432 are connected to each other.
  • the output end is connected to the second port of the first optical interface 410.
  • the wavelength demultiplexer 431 is used to optically demultiplex the second coupled signal into four second input signal lights ( ⁇ 1- ⁇ 4), and output the four second input signal lights of ⁇ 1- ⁇ 4 to The four second ports of the first optical interface 421.
  • the wavelength demultiplexer 431 it optically demultiplexes the second coupled signal received through the second transmission fiber 452 into four second input signal lights ( ⁇ 1- ⁇ 4), and outputs ⁇ 1 respectively.
  • the four second input signal lights of - ⁇ 4 are sent to the other four second ports of the first optical interface 421 .
  • the first optical interface 410 transmits 8 and 2nd signal light to the on-board optical interconnection device through the 8 first ports.
  • first ports and second ports in the first optical interface 410 are used for wavelength division multiplexing and wavelength decomposition multiplexing, that is, the first port used for wavelength division multiplexing. Unlike the first port used for wavelength demultiplexing, the same is true for the second port.
  • the number of the first port and the second port of the first optical interface 410 is only an example and not a limitation. Specifically, the number of the first port and the second port of the first optical interface 410 can be determined according to the number of the first port and the second port in the optical interconnection device. The characteristics (1:K) and number of the beam splitters are set.
  • the number of the first port and the second port of the first optical interface 410 can be Set to 16. Or the number of the first port and the second port of the first optical interface 410 is related to the number of modulators.
  • the first transmission optical fiber 441 and the first transmission optical fiber 442 can be connected to the wavelength division multiplexer 421 and the wavelength division multiplexer 422 respectively through fusion splicing
  • the second transmission optical fiber 451 and the second transmission optical fiber 451 can be connected to the wavelength division multiplexer 421 and the wavelength division multiplexer 422 respectively.
  • the two transmission optical fibers 452 can be connected to the wavelength demultiplexer 451 and the wavelength demultiplexer 452 respectively through fusion splicing. This welding method can reduce the insertion loss of signal light transmission, thereby ensuring the stability of the system.
  • the wavelength division multiplexer 421, the wavelength division multiplexer 422, the wavelength division multiplexer 431, and the wavelength division multiplexer 432 may be optical fiber based on fused fiber couplers.
  • Wavelength division multiplexers and wavelength decomposition multiplexers based on tapered optical fiber couplers have low insertion loss, polarization-independent and temperature-independent characteristics, which can improve the stability of the system and thereby improve the performance of the adapter.
  • the wavelength division multiplexer and wavelength decomposition multiplexer based on tapered optical fibers have long and narrow dimensions, so they can be arranged within the diameter of the optical cable, thereby reducing the size of the adapter.
  • FIG. 5 is a schematic block diagram of an adapter 500 provided by an embodiment of the present application.
  • the adapter 500 includes a first optical interface 410 , a wavelength division multiplexer 421 , a wavelength division multiplexer 422 and a second optical interface 460 .
  • the second optical interface 460 may include two third ports for inputting the first coupled signal light and two fourth ports for outputting the first coupled signal light.
  • the third port is used to receive two first coupled signal lights from the wavelength division multiplexer 421 and the wavelength division multiplexer 422 .
  • the fourth port is used to input the first coupled signal light into the first transmission optical fiber 441 and the first transmission optical fiber 442 respectively.
  • the second optical interface 460 may further include two fourth ports for inputting the second coupled signal light and two third ports for outputting the second coupled signal light.
  • the fourth port is used to receive the second coupled signal light from the second transmission optical fiber 451 and the second transmission optical fiber 452 .
  • the third port is used to input the two second coupled signal lights into the wavelength decomposition multiplexer 431 and the wavelength decomposition multiplexer 432 respectively.
  • third ports and fourth ports in the second optical interface 460 are adopted during wavelength division multiplexing and wavelength decomposition multiplexing.
  • the number of the third port and the fourth port in the adapter 500 shown in FIG. 5 is only an example and not a limitation.
  • first transmission fibers 441 and 442 and the second transmission fibers 451 and 452 are connected to the fourth port of the second optical interface 460 through a pluggable optical port adapter. Based on this solution, the first transmission fibers 441, 442 and the second transmission fibers 451, 452 are connected to the optical port adapter 500 in a pluggable manner, which can improve user operation and ease of use.
  • the functions of the first optical interface 410, the wavelength division multiplexer 421, and the wavelength division multiplexer 422 can be referred to the above description of Figure 4, and will not be described again here.
  • FIG. 6 is a schematic structural diagram of an adapter 600 provided by this application.
  • the adapter includes a first optical interface 610, a photodetector (PD) 620 (i.e., PD 621, PD622, PD623, PD624 shown in Figure 6), and a photoelectric modulator 630, such as that shown in Figure 6 Externally modulated laser (EML) or directly modulated laser (directly modulated laser, DML) 631, 632, 633 and 634, wavelength division multiplexing 640 and power supply 650.
  • EML Externally modulated laser
  • DML directly modulated laser
  • the first optical interface 610 includes a first port and a second port.
  • the first port is pluggable into a panel socket of the optical interconnection device and is used to receive the first input signal light from the optical interconnection device.
  • the second port is connected to the input port of the photodetector 620 and is used to input the first input signal light into the photodetector 620 respectively.
  • the four first input signal lights are respectively input to the photodetector 620 through the four second ports.
  • the photodetector 620 in PD 621, PD622, PD623, and PD624 is used to convert the first input signal light into an electrical signal, and output the electrical signal to the photoelectric modulator 630 respectively, that is, PD 621, PD622, PD623, and PD624 respectively.
  • the corresponding received first input signal is optically converted into an electrical signal, and the converted four electrical signals are output to 631, 632, 633 and 634 respectively.
  • 631, 632, 633 and 634 use the received electrical signal modulation to generate four second input signal lights with different wavelengths, and output all four second input signal lights to the wavelength division multiplexer 640.
  • the wavelength division multiplexer 640 couples the four second input signal lights, generates one first coupled signal light, and transmits the first coupled signal light to the first transmission optical fiber 680 .
  • the power interface 650 is used to power the adapter 600 .
  • the first input signal light is the output signal light of the optical interconnection device in the parallel optical fiber operating mode, and the first coupled signal light corresponds to the output signal light of the optical interconnection device in the wavelength division multiplexing operating mode.
  • the adapter provided by the embodiment of the present application when the adapter provided by the embodiment of the present application is inserted into an optical interconnection device operating in a parallel optical fiber operating mode, the output signal light of the optical interconnection device operating in the parallel optical fiber operating mode can be converted into the optical interconnection device. Output signal light in wavelength division multiplexing operating mode. Since the adapter provided by the embodiment of the present application can be flexibly plugged into and unplugged from the optical interconnection device, the convenience of client operation is improved, thereby improving the user experience.
  • FIG. 6 is only an example and not a limitation. That is, the adapter 600 provided by the embodiment of the present application may include N photodetectors 620, N photoelectric modulators 630, and M wavelength division multiplexers 640. Optional , the adapter 600 may also include N amplifiers 660 and P wave demultiplexers 670 .
  • the output terminals of N photoelectric detectors 620 are connected to the input terminals of N photoelectric modulators 630, and the output terminals of N photoelectric modulators 630 are connected to the input terminals of M wavelength division multiplexers. connected.
  • the N photodetectors 620 are used to convert the received N first input signal lights into N electrical signals.
  • the N photoelectric modulators 630 respectively receive N electrical signals output from the N photodetectors 620 , modulate the N electrical signals to generate N second input signal lights of different wavelengths, and convert the N second input signal lights of different wavelengths into The signal light is output to M wavelength division multiplexers.
  • the M wavelength division multiplexers couple the received N second input signals of different wavelengths into M first coupled signal lights, and output the M first coupled signal lights to the M first transmission optical fibers.
  • the adapter 600 further includes N amplifiers, such as a trans-impedance amplifier (TIA), the output terminals of the N photodetectors 620 and the input terminals of the N amplifiers 660 connected.
  • the output terminals of the N amplifiers are connected to the input terminals of the N photoelectric modulators 630, and the output terminals of the N photoelectric modulators 630 are connected to the input terminals of the M wavelength division multiplexers.
  • the photodetector 620 is used to convert the received N first input signal lights into N electrical signals.
  • the N amplifiers respectively receive N electrical signals, amplify the amplitudes of the N electrical signals, and then output the amplified N electrical signals to the N optoelectronic modulators 630 respectively.
  • the N photoelectric modulators 630 respectively receive N electrical signals output by the N amplifiers 660 , modulate the N electrical signals to generate N second input signal lights of different wavelengths, and convert the N second input signal lights of different wavelengths into Output to M wavelength division multiplexers.
  • the M wavelength division multiplexers couple the received N second input signals of different wavelengths into M first coupled signal lights, and output the M first coupled signal lights to the M first transmission optical fibers.
  • the first port of the adapter 600 may include N first ports for wavelength division multiplexing and another N first ports for wavelength division multiplexing. port. and the appropriate The second ports of the adapter 600 may include N second ports for wavelength division multiplexing and further N second ports for wavelength division multiplexing. That is, the number of first ports or second ports of the first optical interface 610 should be greater than N, that is, the first port or the second port used for wavelength division multiplexing, and the first port or the second port used for wavelength division multiplexing. The ports are different ports.
  • the optical interconnection equipment outputs 4 channels of first signal light with a wavelength of 1310, and the 4 channels of first signal light are respectively input to In PD 621-PD 624, each PD performs photoelectric conversion on the received first signal light and outputs four electrical signals respectively.
  • the 4 electrical signals can be directly input to the corresponding EML/DML in EML/DML 631-EML/DML 634. Or the 4 electrical signals pass through a corresponding TIA among TIA 661-TIA 664 and then are input to the corresponding EML/DML.
  • EML/DML 631-EML/DML634 After EML/DML 631-EML/DML634 receives the corresponding electrical signal, it modulates the electrical signal to generate a second input signal light. For example, it generates 4 second input signal lights with wavelengths corresponding to 1270nm, 1290nm, 1310nm and 1330nm respectively. , and input the second input signal light of the four wavelengths into the wavelength division multiplexer 640 .
  • the wavelength division multiplexer 640 couples the second input signal light of four wavelengths to generate one first coupled signal light and inputs it into the first transmission optical fiber 680 .
  • the wavelength decomposition multiplexer 670 receives the second coupled optical signal through the second transmission optical fiber 690, including four wavelength signal lights in the wavelength of 1270nm-1310nm, and the wavelength decomposition multiplexer 670
  • the second coupled signal light is demultiplexed into four third input signal lights, for example, four third input signal lights with wavelengths of 1270nm, 1290nm, 1310nm and 1330nm respectively, and the four third input signal lights are output to the third input signal light.
  • the second port of an optical interface 610 is input to the device through the first port of the first optical interface 610, for example, input to the receiving end of the on-board optical module of the device.
  • the first transmission optical fiber 680 is connected to the wavelength division multiplexer 640 through fusion splicing, and similarly, the second transmission optical fiber 690 is connected to the wavelength division multiplexer 670 through fusion splicing.
  • the light source interface 650 of the adapter 600 can be an optoelectronic composite connector 650.
  • the optoelectronic composite connector 650 integrates a power interface and a second optical interface.
  • the second optical interface can It is connected to the first transmission optical fiber 680 and the second transmission optical fiber 690 through a pluggable optical port adapter.
  • the number of third ports and the number of fourth ports in the optoelectronic composite connector 650 of the adapter 600 should be greater than or equal to the sum of the number of wavelength division multiplexers 640 and wavelength decomposition multiplexers 670 , that is, the number of the third port and the number of the fourth port are greater than (M+P).
  • the wavelength division multiplexer 640 and the wavelength decomposition multiplexer 670 may be implemented as optical elements based on fused fiber couplers.
  • the beneficial effects of this component please refer to the relevant description in Figure 4 and will not be repeated here.
  • Figure 7 is a schematic flow chart of an optical transmission method 700 provided by an embodiment of the present application. Specifically, the method 700 may be applied to the adapter 400 as shown in FIG. 4 or may be applied to the adapter 500 as shown in FIG. 5 . The method 700 is described with reference to FIG. 4 . As shown in Figure 7, the method includes the following steps.
  • S701 Receive N first input signal lights from the optical interconnection device.
  • the first optical interface 410 receives N first input signal lights from the optical interconnection device.
  • the optical interconnection device operates in the parallel optical fiber operating mode.
  • the N first input signal lights are Signal light corresponding to parallel optical fiber working mode.
  • S702 Couple M first input signal lights among the N first input signal lights to generate first coupled signal lights.
  • the wavelength division multiplexer 421 and the wavelength division multiplexer 422 respectively couple the M first input signal lights among the N first input signal lights and generate corresponding first coupled signal lights.
  • M first inputs The wavelengths of the signal lights are different, and the first coupled signal light is the signal light corresponding to the wavelength division multiplexing mode of the optical interconnection device.
  • the signal light corresponding to the parallel optical fiber working mode can be converted into the signal light corresponding to the wavelength division multiplexing mode through the pluggable adapter 400, thereby achieving the purpose of conversion at the customer interface. Improved system operation flexibility.
  • Figure 8 is a schematic flow chart of an optical transmission method 800 provided by an embodiment of the present application. Specifically, the method 800 may be applied to the adapter 400 as shown in FIG. 4 or may be applied to the adapter 500 as shown in FIG. 5 . The method 800 is described with reference to FIG. 4 . As shown in Figure 8, the method includes the following steps.
  • the wavelength demultiplexer 431 and the wavelength demultiplexer 432 receive the second coupled signal light from other external devices through the second transmission optical fibers 451 and 452 respectively.
  • S802 Demultiplex the second coupled signal light into P second input signal lights.
  • the wavelength demultiplexer 431 and the wavelength demultiplexer 432 respectively optically demultiplex the received second coupled signal into four second input signal lights with different wavelengths.
  • the wavelength decomposition multiplexer 431 and the wavelength decomposition multiplexer 432 respectively input the four second input signal lights with different wavelengths generated in S802 into the optical interconnection device through the first optical interface 410. .
  • the pluggable adapter 400 can be used to complete wavelength decomposition and multiplexing, provide input signal light of different wavelengths for the device, and complete information interaction with other devices.
  • Figure 9 is a schematic flow chart of an optical transmission method 900 provided by an embodiment of the present application. Specifically, the method 900 can be applied to the adapter 600 shown in FIG. 6 . The method 900 is described with reference to FIG. 6 . As shown in Figure 9, the method includes the following steps.
  • S901 Receive N first input signal lights from the optical interconnection device.
  • the first optical interface 610 receives N first input signal lights from the optical interconnection device.
  • the optical interconnection device operates in the parallel optical fiber operating mode.
  • the N first input signal lights are Signal light corresponding to parallel optical fiber working mode.
  • S902 Convert the N first input signal lights into N electrical signals.
  • the N photodetectors 620 respectively convert N first input signal lights into N electrical signals.
  • S903 Generate N second input signal lights based on N electrical signal modulation.
  • N photoelectric modulators modulate N electrical signals to generate N second input signal lights, where the N second input signal lights have different wavelengths.
  • S904 Couple N second input signal lights to generate first coupled signal lights.
  • the wavelength division multiplexer 640 couples N second input signal lights to generate first coupled signal lights.
  • the first coupled signal light is the signal light corresponding to the wavelength division multiplexing mode of the optical interconnection device.
  • the pluggable adapter 600 can be used to convert the signal light of the same wavelength corresponding to the parallel optical fiber working mode into the signal light corresponding to the wavelength division multiplexing mode, realizing conversion at the customer interface. the goal of.
  • Figure 10 is a schematic flow chart of an optical transmission method 1000 provided by an embodiment of the present application. Specifically, the method 1000 can be applied to the adapter 600 shown in FIG. 6 . The method 1000 is described with reference to FIG. 6 . like As shown in Figure 10, the method includes the following steps.
  • the wavelength demultiplexer 670 receives the second coupled signal light from other external devices through the second transmission optical fiber 690.
  • S1002 Demultiplex the second coupled signal light into Q third input signal lights.
  • the wavelength demultiplexer 670 optically demultiplexes the received second coupled signal into four third input signal lights with different wavelengths.
  • the wavelength demultiplexer 670 inputs the four third input signal lights with different wavelengths generated in S1002 into the optical interconnection device through the first optical interface 410.
  • this application completes the wavelength decomposition and multiplexing process through the pluggable adapter 600, providing input signal light of different wavelengths for the device to complete information interaction with other devices.
  • FIG 11 is a schematic block diagram of a communication device 1100 provided by an embodiment of the present application.
  • the communication device 1100 includes a transceiver unit 1110 and a processing unit 1120.
  • the transceiver unit 1110 can exchange signal light with external optical interconnection equipment, and the processing unit 1120 is used for data processing.
  • the transceiver unit 1110 may also be called a communication interface or communication unit.
  • the communication device 1100 may also include a storage unit, which may be used to store instructions and/or data, and the processing unit 1120 may read the instructions and/or data in the storage unit, so that the communication device 1100 implements the aforementioned Action S702 performed by the adapter in the method embodiment (method 700). Or implement actions S802 and S803 performed by the adapter in the aforementioned method embodiment (method 800). Or implement the actions S902-S904 performed by the adapter in the aforementioned method embodiment (method 900). Or implement actions S1002 and S1003 performed by the adapter in the aforementioned method embodiment (method 1000).
  • a storage unit which may be used to store instructions and/or data
  • the processing unit 1120 may read the instructions and/or data in the storage unit, so that the communication device 1100 implements the aforementioned Action S702 performed by the adapter in the method embodiment (method 700). Or implement actions S802 and S803 performed by the adapter in the aforementioned method embodiment (method 800). Or implement the actions S902-S
  • an embodiment of the present application also provides a communication device 1200.
  • the communication device 1200 includes a processor 1210.
  • the processor 1210 is coupled to a memory 1220.
  • the memory 1220 is used to store computer programs or instructions and/or data.
  • the processor 1210 is used to execute the computer programs or instructions and/or data stored in the memory 1220.
  • the method in the above method embodiment in Figure 7, Figure 8, Figure 9 or Figure 10 is caused to be executed, that is, the processor 1210 is used to implement the operations performed by the adapter in the above method embodiment.
  • the communication device 1200 includes one or more processors 1210 .
  • the communication device 1200 may further include a memory 1220.
  • the communication device 1200 may include one or more memories 1220 .
  • the memory 1220 can be integrated with the processor 1210 or provided separately.
  • the communication device 1200 may also include a transceiver 1230, which is used for receiving and/or transmitting signals.
  • the processor 1210 is used to control the transceiver 1230 to receive and/or transmit signals.
  • processors in the embodiments of the present application can be a central processing unit (CPU), or other general-purpose processor, digital signal processor (DSP), or application-specific integrated circuit (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a general-purpose processor can be a microprocessor or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented in hardware, or may be executed by a processor in software. implemented by instructions.
  • Software instructions can be composed of corresponding software modules.
  • the software modules can be stored in random access memory (random access memory, RAM), flash memory, read-only memory (read-only memory, ROM), programmable read-only memory (programmable rom). , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or other well-known in the art any other form of storage media.
  • An exemplary storage medium is coupled to the processor such that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage media may be located in an ASIC.
  • a component may be, but is not limited to, a process, a processor, an object, an executable file, a thread of execution, a program and/or a computer running on a processor.
  • applications running on the computing device and the computing device may be components.
  • One or more components can reside in a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. Additionally, these components can execute from various computer-readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component, a local system, a distributed system, and/or a network, such as the Internet, which interacts with other systems via signals) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component, a local system, a distributed system, and/or a network, such as the Internet, which interacts with other systems via signals
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted over a computer-readable storage medium.
  • the computer instructions may be transmitted from one website, computer, server or data center to another website through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. , computer, server or data center for transmission.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state disk (SSD)), etc.
  • the disclosed systems and devices can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated.
  • the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple networks. on the unit. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

Abstract

La présente invention concerne un adaptateur et un système d'interconnexion optique embarqué, capables de mettre en œuvre une commutation flexible entre un mode de travail de fibre monomode parallèle et un mode de travail de multiplexage par répartition en longueur d'onde d'une interface client. L'adaptateur comprend une première interface optique et au moins un multiplexeur de division en longueur d'onde. La première interface optique peut être branchée/débranchée d'un dispositif d'interconnexion optique embarqué et est connectée à l'au moins un multiplexeur de longueur d'onde de manière à ce qu'elle se croise à parts égales. Le ou les multiplexeurs de longueur d'onde est connecté à une première fibre de transmission. La première interface optique est utilisée pour recevoir N pièces du premier signal d'entrée de lumière du dispositif d'interconnexion optique embarqué et pour émettre les N pièces du premier signal d'entrée de lumière vers l'au moins un multiplexeur à répartition en longueur d'onde. Le ou les multiplexeurs de longueur d'onde couple M des N morceaux de lumière du premier signal d'entrée et génère un premier signal lumineux couplé. Les N éléments du premier signal lumineux d'entrée sont des signaux lumineux correspondant au mode de fonctionnement de la fibre monomode parallèle, les longueurs d'onde des M éléments du premier signal lumineux d'entrée sont différentes, et le premier signal lumineux couplé est un signal lumineux correspondant au mode de multiplexage par répartition en longueur d'onde.
PCT/CN2023/098651 2022-06-21 2023-06-06 Adaptateur et système d'interconnexion optique embarqué WO2023246503A1 (fr)

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CN104049318A (zh) * 2013-03-13 2014-09-17 深圳新飞通光电子技术有限公司 四端口olt光收发一体模块
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CN110376688A (zh) * 2019-07-16 2019-10-25 武汉光迅科技股份有限公司 一种光模块
KR20230045515A (ko) * 2021-09-28 2023-04-04 한국전자통신연구원 다채널 광트랜시버에 탈부착되는 착탈식 파장다중화 어댑터 및 이를 이용한 다채널 광통신 장치

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CN202512273U (zh) * 2012-02-28 2012-10-31 武汉飞鹏光科技有限公司 一种 40g/100g cfp 可插拔光电收发模块
CN104049318A (zh) * 2013-03-13 2014-09-17 深圳新飞通光电子技术有限公司 四端口olt光收发一体模块
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