WO2023284540A1 - Module optique bidirectionnel à fibre unique, procédé de transmission de signal à débit en bauds élevé et réseau fronthaul 5g - Google Patents

Module optique bidirectionnel à fibre unique, procédé de transmission de signal à débit en bauds élevé et réseau fronthaul 5g Download PDF

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Publication number
WO2023284540A1
WO2023284540A1 PCT/CN2022/101578 CN2022101578W WO2023284540A1 WO 2023284540 A1 WO2023284540 A1 WO 2023284540A1 CN 2022101578 W CN2022101578 W CN 2022101578W WO 2023284540 A1 WO2023284540 A1 WO 2023284540A1
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WIPO (PCT)
Prior art keywords
signal
fiber bidirectional
bidirectional optical
electrical signal
dsp
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PCT/CN2022/101578
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English (en)
Chinese (zh)
Inventor
朱能念
张睿
刘会田
韩于朝
吴晓东
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中兴通讯股份有限公司
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Publication of WO2023284540A1 publication Critical patent/WO2023284540A1/fr

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    • 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
    • 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
    • H04B10/40—Transceivers
    • 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
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/524—Pulse modulation
    • 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
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/54—Intensity modulation
    • 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
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/54—Intensity modulation
    • H04B10/541—Digital intensity or amplitude modulation

Definitions

  • the embodiment of the present application relates to the communication field, and in particular to a single-fiber bidirectional optical module, a high baud rate signal transmission method, and a 5G fronthaul network.
  • Optical fiber communication is one of the main pillars of modern communication and plays a pivotal role in modern telecommunication networks.
  • the current single-wavelength 100G optical modules only have dual-fiber bidirectional optical modules, and there is no single-fiber bidirectional optical module.
  • the length of the two fibers is likely to be inconsistent, and the length of the two fibers is inconsistent, which will lead to inconsistent delays of the link.
  • it is necessary to measure the delay asymmetry of the link during project deployment which not only leads to complex project deployment, but also requires dual-fiber bidirectional optical modules Implementations are more expensive and bulkier.
  • the purpose of the embodiments of the present application is to provide a single-fiber bidirectional optical module, a high baud rate signal transmission method, and a 5G fronthaul network, aiming to provide a single-fiber bidirectional optical module to solve the above technical problems.
  • Embodiments of the present application provide a single-fiber bidirectional optical module for transmitting high baud rate signals
  • the single-fiber bidirectional optical module comprising: a single-fiber bidirectional optical device, a digital signal processor (Digital Signal Processor, DSP) and a laser drive circuit, the laser drive circuit is connected to the single-fiber bidirectional optical device and the DSP; the single-fiber bidirectional optical device is used to receive an incident optical signal with a high baud rate, and transmit the incident light The signal is converted into a first electrical signal and output to the DSP; the DSP is used to output a second electrical signal with a high baud rate to the laser drive circuit; the laser drive circuit is used to output the second electrical signal to the second The electrical signal is amplified, and the amplified second electrical signal is transmitted to the single-fiber bidirectional optical device, and the single-fiber bidirectional optical device converts it into a high baud rate outgoing optical signal for outward transmission.
  • DSP Digital Signal Processor
  • the embodiment of the present application also provides a high baud rate signal transmission method, including: applied to a single-fiber bidirectional optical module, the single-fiber bidirectional optical module includes: a single-fiber bidirectional optical device, a digital signal processor DSP and a laser driver circuit, the laser drive circuit is connected to the single-fiber bidirectional optical device and the DSP, and the transmission method of the high baud rate signal includes: a signal receiving step and a signal transmitting step; the signal receiving step includes: the The single-fiber bidirectional optical device receives an incident optical signal with a high baud rate, converts the incident optical signal into a first electrical signal and outputs it to a digital signal processor DSP; the DSP converts the first electrical signal from the first electrical signal according to business requirements extract the first main data; the signal transmitting step includes: the DSP converts the second main data into a second electrical signal with a high baud rate and outputs it to the laser driving circuit; the laser driving circuit The second electrical signal is amplified, and the amplified second electrical signal
  • the embodiment of the present application also provides a 5G fronthaul network, which uses the above-mentioned single-fiber bidirectional optical module to receive and/or send data.
  • FIG. 1 is a schematic structural diagram of a single-fiber bidirectional optical module provided in an embodiment of the present application
  • Fig. 2 is an interactive schematic diagram of optical signal transmission performed by single-fiber bidirectional optical modules located at both ends provided by the embodiment of the present application;
  • FIG. 3 is a schematic flow diagram of signal reception in the high baud rate signal transmission method provided by the embodiment of the present application.
  • Fig. 4 is a schematic flow chart of signal transmission in the high baud rate signal transmission method provided by the embodiment of the present application.
  • the single-fiber bidirectional optical module includes: a single-fiber bidirectional optical device, a digital signal processor DSP and a laser drive circuit.
  • the laser drive circuit is connected to the single-fiber bidirectional optical device and the DSP; the single-fiber bidirectional optical device is used to receive a high baud rate incident optical signal and convert the incident optical signal into a first electrical signal output to the DSP; the DSP is used to output a second electrical signal with a high baud rate to the laser driving circuit; the laser driving circuit is used to amplify the second electrical signal, and
  • the amplified second electrical signal is transmitted to the single-fiber bidirectional optical device, and is converted by the single-fiber bidirectional optical device into a high baud rate outgoing optical signal for outward transmission.
  • the incident optical signal received by the single-fiber bidirectional optical device in this embodiment is a four-level pulse amplitude modulation (4-Level Pulse Amplitude Modulation, PAM4) format
  • the converted first electrical signal is PAM4 format
  • the second electrical signal transmitted by DSP to the laser drive circuit is PAM4 format at a rate of 100G/s
  • the outgoing optical signal emitted by the single-fiber bidirectional optical device is 100G/s s-rate PAM4 format.
  • the single-fiber bidirectional optical device is used to receive a 100G/s four-level pulse amplitude modulation incident optical signal in PAM4 format, and convert the incident optical signal into a first electrical signal in PAM4 format for output
  • the DSP extracts the first main data from the first electrical signal according to business requirements;
  • the DSP is used to convert the second main data into a 100G/s rate PAM4 format
  • the second electrical signal is output to the laser driving circuit;
  • the laser driving circuit is used to amplify the second electrical signal, and transmit the amplified second electrical signal to the single-fiber bidirectional optical device , which is converted by the single-fiber bidirectional optical device into an outgoing optical signal in PAM4 format at a rate of 100G/s for outward transmission.
  • the above-mentioned limitations on the rate and format of the incident optical signal, the first electrical signal, the second electrical signal, and the outgoing optical signal are only for better illustrating the working process of the single-fiber bidirectional optical module provided in this embodiment , in practical applications, the above signal rate is not limited to 100G/s rate, which is not limited in this embodiment.
  • the single-fiber bidirectional optical module provided in this embodiment can achieve bidirectional transmission, the uplink and downlink wavelengths use similar wavelengths, so the link delays are consistent, thereby ensuring that in optical fiber communication, the use of the single-fiber bidirectional optical module provided in this embodiment
  • the bidirectional optical module can not only save half of the optical fiber, but also the engineering deployment and later operation and maintenance are relatively simple, thus greatly reducing the engineering cost.
  • the single-fiber bidirectional optical module integrateds the laser driving circuit as a separate device in the single-fiber bidirectional optical module, that is, the DSP and the laser driving circuit are respectively integrated in different In the chip, however, in order to further reduce the volume of the single-fiber bidirectional optical module in practical applications, the laser driver circuit can be integrated into the DSP, that is, the DSP and the laser driver circuit are integrated in the same chip. This is not limited.
  • the single-fiber bidirectional optical device in this embodiment specifically integrates an electro-optical conversion unit for converting electrical signals into optical signals, for converting A photoelectric conversion unit for converting optical signals into electrical signals, and an optical device for outputting all outgoing light signals to optical fibers and reflecting all incident light signals to the photoelectric conversion unit.
  • the single-fiber bidirectional optical device based on the above structure will receive a 100G/s rate incident optical signal in PAM4 format, and convert the incident optical signal into a first electrical signal in PAM4 format and output it to the
  • the photoelectric conversion unit receives the incident light signal, converts the incident light signal into the first electrical signal in PAM4 format, and outputs it to the DSP.
  • the electro-optical conversion unit receives the amplified second electrical signal the second electrical signal, and convert the second electrical signal into the outgoing optical signal in PAM4 format for external transmission.
  • the optical device receives the outgoing optical signal output by the electro-optical conversion unit, and transmits the outgoing optical signal to the outside.
  • the optical device is also used to receive the incident light signal, and transmit the incident light signal to the photoelectric conversion unit, so that the photoelectric conversion unit can convert the incident light signal into the PAM4 format. first electrical signal.
  • a circulator or an optical filter can be selected to meet the above requirements (output all outgoing optical signals to the optical fiber, and reflect all incident optical signals to the photoelectric conversion unit).
  • an optical filter that satisfies the above conditions is specifically selected.
  • the single-fiber bidirectional optical module provided in this embodiment does not have a rigid requirement for the carrier wavelength of the incident optical signal to be ⁇ 1 and the carrier wavelength of the outgoing optical signal to be ⁇ 2, that is, the carrier wavelength of the optical signal
  • the single-fiber bidirectional optical module provided in this embodiment can adapt to the transmission rate of 100G and above, and the transmission distance can cover 1m-120km.
  • the single-fiber bidirectional optical module provided in this embodiment transmits optical signals at both ends of the optical fiber, the following will be specifically described in conjunction with FIG. 2:
  • A-side single-fiber bidirectional optical module is a-side single-fiber bidirectional optical module
  • the DSP of the A-end single-fiber bidirectional optical module converts the second main data signal into a second electrical signal in PAM4 format at a rate of 100G/s and outputs it to the laser driving circuit, and the laser driving circuit controls the second
  • the emitted light signal is fully transparent and lossless transmitted through the optical filter to the optical fiber interface for output.
  • the photoelectric conversion unit After the photoelectric conversion unit performs photoelectric conversion on the incident light signal, it converts a 100G/s rate PAM4 format incident light signal into the first electrical signal of PAM4 format and outputs it to the DSP.
  • the DSP can The first main data is extracted from the first electrical signal.
  • the DSP of the single-fiber bidirectional optical module at the B-end converts the second main data signal into a second electrical signal in PAM4 format at a rate of 100G/s and outputs it to the laser driving circuit, and the laser driving circuit controls the second
  • the emitted light signal is fully transparent and lossless transmitted through the optical filter to the optical fiber interface for output.
  • the photoelectric conversion unit After the photoelectric conversion unit performs photoelectric conversion on the incident light signal, it converts a 100G/s rate PAM4 format incident light signal into the first electrical signal of PAM4 format and outputs it to the DSP.
  • the DSP can The first main data is extracted from the first electrical signal.
  • A-side single-fiber bidirectional optical module is a-side single-fiber bidirectional optical module
  • the DSP of the A-end single-fiber bidirectional optical module converts the second main data signal into a second electrical signal in PAM4 format at a rate of 100G/s and outputs it to the laser driving circuit, and the laser driving circuit controls the second
  • the emitted light signal is fully transparent and lossless transmitted through the optical filter to the optical fiber interface for output.
  • the photoelectric conversion unit After the photoelectric conversion unit performs photoelectric conversion on the incident light signal, it converts a 100G/s rate PAM4 format incident light signal into the first electrical signal of PAM4 format and outputs it to the DSP.
  • the DSP can The first main data is extracted from the first electrical signal.
  • the DSP of the single-fiber bidirectional optical module at the B-end converts the second main data signal into a second electrical signal in PAM4 format at a rate of 100G/s and outputs it to the laser driving circuit, and the laser driving circuit controls the second
  • the emitted light signal is fully transparent and lossless transmitted through the optical filter to the optical fiber interface for output.
  • the photoelectric conversion unit After the photoelectric conversion unit performs photoelectric conversion on the incident light signal, it converts a 100G/s rate PAM4 format incident light signal into the first electrical signal of PAM4 format and outputs it to the DSP.
  • the DSP can The first main data is extracted from the first electrical signal.
  • the single-fiber bidirectional optical module integrates a single-fiber bidirectional optical device capable of changing directions, a DSP and a laser drive circuit, and sets the single-fiber bidirectional optical device to receive a 100G/
  • the incident optical signal in the PAM4 format of the s rate is converted into the first electrical signal in the PAM4 format and output to the DSP, and the DSP extracts the first main data from the first electrical signal according to the business requirements; at the same time, the DSP is set to The second main data is converted into a second electrical signal in PAM4 format at a rate of 100G/s, which is output to the laser drive circuit for amplification, and the amplified second electrical signal is transmitted to the single-fiber bidirectional optical device, and the single-fiber bidirectional optical device
  • the output optical signal converted into a 100G/s rate PAM4 format is transmitted outward, thus realizing single-fiber bidirectional transmission.
  • bidirectional transmission can be realized by using the single-fiber bidirectional optical module provided by this application, only one link can be deployed in optical fiber communication to realize the reception and transmission of optical signals, so there is no need for asymmetric link delay Measurements can be carried out, which greatly simplifies the engineering deployment, and in the case of tight fiber resources, the use of single-fiber bidirectional optical modules can also save half of the fiber.
  • the circuit structure of the single-fiber bidirectional optical module is simple and the device is compact, the volume of the single-fiber bidirectional optical module provided by this application is also relatively small, and high-speed transmission of high baud rate signals is realized based on the single-fiber bidirectional optical module. During transmission, the performance of the system can be improved as much as possible on the premise of meeting the technical requirements of the system.
  • FIG. 3 is a flow chart of signal reception in the high baud rate signal transmission method provided by the embodiment of the present application.
  • the method is applied to the single-fiber bidirectional optical module mentioned in the above embodiments.
  • the signal receiving step in the high baud rate signal transmission method specifically includes the following sub-steps:
  • the single-fiber bidirectional optical device receives an incident optical signal with a high baud rate, and converts the incident optical signal into a first electrical signal and outputs it to a digital signal processor DSP.
  • the incident optical signal mentioned in this embodiment is specifically a four-level pulse amplitude modulation PAM4 format optical signal at a rate of 100G/s.
  • the converted first electrical signal is in the PAM4 format.
  • the single-fiber bidirectional optical device includes an electro-optical conversion unit for converting an electrical signal into an optical signal, a photoelectric conversion unit for converting an optical signal into an electrical signal, And an optical device for outputting all outgoing light signals to the optical fiber and reflecting all incident light signals to the photoelectric conversion unit, such as a circulator and an optical filter.
  • an optical filter is specifically used. Therefore, in conjunction with Fig.
  • step 301 the operation in step 301 is specifically: the incident optical signal of the PAM4 format with a carrier wavelength of ⁇ 2 and a 100G/s rate sent by the B terminal is input to the single-fiber bidirectional The optical device is filtered and reflected by the filter in the single-fiber bidirectional optical device, and is emitted to the photoelectric conversion unit for photoelectric conversion, and then the first electrical signal in PAM4 format is obtained, and the first electrical signal is output by the photoelectric conversion unit to DSP.
  • Step 302 the DSP extracts first main data from the first electrical signal according to service requirements.
  • the business requirement may be to decompose a first electrical signal in PAM4 format at a rate of 100G/s into four electrical signals in NRZ format at a rate of 25G/s, or to decompose a first electrical signal in NRZ format at a rate of 100G/s
  • the first electrical signal in the PAM4 format of the rate is decomposed into two channels of electrical signals in the PAM4 format at a rate of 50G/s. It can also be decomposed into two channels of the first electrical signal in the PAM4 format at a rate of 100G/s into two channels of 25G/s rate.
  • the first main data extracted from the first electrical signal by the DSP basically meets the above-mentioned requirements.
  • FIG. 4 is a flow chart of signal transmission in the high baud rate signal transmission method provided by the embodiment of the present application.
  • the method is applied to the single-fiber bidirectional optical module mentioned in the above embodiment.
  • the signal transmission step in the high baud rate signal transmission method provided by this embodiment specifically includes the following sub-steps:
  • Step 401 the DSP converts the second main data into a second electrical signal with a high baud rate and outputs it to the laser driving circuit.
  • Step 402 the laser driving circuit amplifies the second electrical signal, and transmits the amplified second electrical signal to the single-fiber bidirectional optical device.
  • Step 403 the single-fiber bidirectional optical device converts the amplified second electrical signal into a high baud rate outgoing optical signal for outward transmission.
  • both the second electrical signal and the outgoing optical signal are in a PAM4 format with a rate of 100G/s.
  • the process of the single-fiber bidirectional optical module transmitting the second main data to the outside is essentially the opposite of the process of receiving the incident optical signal, so the process of the external transmission is specifically: the second main data, whether it is 4 channels of electrical signals in NRZ format at 25G/s rate, or 2 channels of electrical signals in PAM4 format at 50G/s rate, or 2 channels of electrical signals in NRZ format at 25G/s rate and one channel of electrical signals in PAM4 format at 50G/s rate
  • the electrical signal passes through the DSP, it will be converted into a second electrical signal in PAM4 format with a rate of 100G/s and output to the laser driving circuit, and then the second electrical signal will be amplified by the laser driving circuit, and the amplified first
  • the two electrical signals are transmitted to the single-fiber bidirectional optical device.
  • the single-fiber bidirectional optical device includes an electro-optical conversion unit for converting electrical signals into optical signals, a photoelectric conversion unit for converting optical signals into electrical signals, and a unit for converting all outgoing optical signals output to the optical fiber, and reflect all the incident optical signals to the optical device of the photoelectric conversion unit, such as a circulator and an optical filter.
  • an optical filter is specifically used.
  • the electro-optical conversion unit performs electro-optical conversion on the second electrical signal to obtain an outgoing optical signal in PAM4 format with a carrier wavelength of ⁇ 1, and then converts the carrier wavelength to The outgoing optical signal in PAM4 format with ⁇ 1 is completely transmitted through the optical filter and output to the optical fiber.
  • the high baud rate signal transmission method provided in this embodiment uses the single-fiber bidirectional optical module provided in the above embodiment to transmit high baud rate signals. Since the single-fiber bidirectional optical module supports bidirectional Transmission, so that in optical fiber communication, only one link can be deployed to realize the reception and transmission of optical signals, so there is no need to measure the delay asymmetry of the link, which greatly simplifies engineering deployment, and in the case of tight optical fiber resources In some cases, using a single-fiber bidirectional optical module can also save half of the optical fiber.
  • the circuit structure of the single-fiber bidirectional optical module is simple and the device is compact, the volume of the single-fiber bidirectional optical module provided by this application is also relatively small, and high-speed transmission of high baud rate signals is realized based on the single-fiber bidirectional optical module. During transmission, the performance of the system can be improved as much as possible on the premise of meeting the technical requirements of the system.
  • this embodiment is a method embodiment corresponding to the above-mentioned single-fiber bidirectional optical module embodiment, and this embodiment can be implemented in cooperation with the above-mentioned single-fiber bidirectional optical module embodiment.
  • the relevant technical details mentioned in the above embodiment of the single-fiber bidirectional optical module are still valid in this embodiment, and will not be repeated here in order to reduce repetition.
  • the relevant technical details mentioned in this embodiment can also be applied to the above embodiments of the single-fiber bidirectional optical module.
  • the embodiment of the present application also provides a 5G fronthaul network, which uses the above-mentioned single-fiber bidirectional optical module to receive and/or send data, so that the overall structure of the 5G fronthaul network is small, the cost is low, and high-speed transmission of high-baud rate signals is realized. During transmission, the performance of the system can be improved as much as possible on the premise of meeting the technical requirements of the system.
  • the single-fiber bidirectional optical module, high baud rate signal transmission method and 5G fronthaul network proposed in this application integrate a single-fiber bidirectional optical device capable of changing directions, a DSP and a laser drive circuit, and set a single-fiber bidirectional optical device Receive an incident optical signal with a high baud rate, convert the incident optical signal into a first electrical signal with a high baud rate and output it to the DSP; at the same time, set the DSP to output a second electrical signal with a high baud rate to the laser drive circuit, Make the laser drive circuit amplify the second electrical signal, and transmit the amplified second electrical signal to the single-fiber bidirectional optical device, and the single-fiber bidirectional optical device converts it into a high-baud-rate outgoing optical signal for outward transmission , so as to realize the single-fiber bidirectional transmission.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Optical Communication System (AREA)

Abstract

La présente invention divulgue un module optique bidirectionnel à fibre unique, un procédé de transmission de signal à débit en bauds élevé et un réseau fronthaul 5G. L'invention concerne un module optique bidirectionnel à fibre unique pour transmettre un signal à débit en bauds élevé. Un dispositif optique bidirectionnel à fibre unique est disposé de manière à recevoir un signal optique entrant ayant un débit en bauds élevé, et le signal optique entrant est converti en un premier signal électrique et est délivré à un DSP ; de plus, le DSP est disposé de manière à délivrer en sortie un deuxième signal électrique ayant un débit en bauds élevé à un circuit d'attaque laser, le deuxième signal électrique est amplifié par le circuit d'attaque laser, et un deuxième signal électrique amplifié est transmis au dispositif optique bidirectionnel à fibre unique et est converti par le dispositif optique bidirectionnel à fibre unique en un signal optique sortant ayant un débit en bauds élevé pour une transmission vers l'extérieur.
PCT/CN2022/101578 2021-07-15 2022-06-27 Module optique bidirectionnel à fibre unique, procédé de transmission de signal à débit en bauds élevé et réseau fronthaul 5g WO2023284540A1 (fr)

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CN202110801330.0A CN115622630A (zh) 2021-07-15 2021-07-15 单纤双向光模块、高波特率信号传输方法及5g前传网络
CN202110801330.0 2021-07-15

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CN117498938A (zh) * 2023-10-09 2024-02-02 四川泰瑞创通讯技术股份有限公司 光模块收发装置、控制方法、电子装置及可读存储介质

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CN102255670A (zh) * 2011-07-13 2011-11-23 武汉电信器件有限公司 一种单纤双向光模块
WO2015078091A1 (fr) * 2013-11-26 2015-06-04 上海斐讯数据通信技术有限公司 Ensemble émetteur-récepteur optique de terminal gpon à fonction rssi
CN109412696A (zh) * 2018-08-28 2019-03-01 武汉光迅科技股份有限公司 基于pam4调制技术的双向光收发模块
CN109617610A (zh) * 2018-11-22 2019-04-12 江苏亨通光网科技有限公司 单波长100g光模块及5g前传网络
CN110176960A (zh) * 2019-06-27 2019-08-27 成都光创联科技有限公司 一种新型单纤双向多通道输入光模块

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255670A (zh) * 2011-07-13 2011-11-23 武汉电信器件有限公司 一种单纤双向光模块
WO2015078091A1 (fr) * 2013-11-26 2015-06-04 上海斐讯数据通信技术有限公司 Ensemble émetteur-récepteur optique de terminal gpon à fonction rssi
CN109412696A (zh) * 2018-08-28 2019-03-01 武汉光迅科技股份有限公司 基于pam4调制技术的双向光收发模块
CN109617610A (zh) * 2018-11-22 2019-04-12 江苏亨通光网科技有限公司 单波长100g光模块及5g前传网络
CN110176960A (zh) * 2019-06-27 2019-08-27 成都光创联科技有限公司 一种新型单纤双向多通道输入光模块

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117498938A (zh) * 2023-10-09 2024-02-02 四川泰瑞创通讯技术股份有限公司 光模块收发装置、控制方法、电子装置及可读存储介质

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