Optical line terminal

An optical line terminal and circuit technology, used in wavelength division multiplexing systems, electromagnetic transceivers, etc., can solve the problems of large insertion loss, inflexible use, and reduce OLT port density, so as to avoid space and improve port density. Effect

Pending Publication Date: 2021-04-16
GUANGXUN SCI & TECH WUHAN
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AI Technical Summary

Problems solved by technology

[0002] In order to realize the compatibility between 50G Passive Optical Network (PON) and 10G PON, it is necessary for Optical Line Terminal (OLT) to support both 50G PON and 10G PON. Wavelength Division Multiplexing, WDM) to realize the multiplexing and demultiplexing of 50G OLT and 10GOLT, requires the cooperation of 50G OLT and 10G OLT, and the external WDM introduces additional insertion loss, takes up a large additional space, and reduces the port density of OLT , it is not flexible enough to use

Method used

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Embodiment Construction

[0022] The present application will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments provided here are only used to explain the present application, and are not intended to limit the present application. In addition, the embodiments provided below are some embodiments for implementing the application, rather than providing all the embodiments for implementing the application. In the case of no conflict, the technical solutions described in the embodiments of the application can be combined in any manner implement.

[0023] It should be noted that, in the embodiments of the present application, the terms "comprising", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a method or device comprising a series of elements not only includes the explicitly stated elements, but also include other elements not explicitly listed, or also include ...

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Abstract

The embodiment of the invention provides an optical line terminal, which is connected between a local side and an optical network unit, and comprises an optical drive circuit and an optical transceiver module. The optical transceiver module comprises an optical transmitting assembly and a wavelength division multiplexing assembly. The optical drive circuit performs first signal processing on downlink data provided by the local side to obtain an optical drive signal; the light driving signal drives the light emitting assembly to obtain a first downlink light signal and a second downlink light signal with different wavelengths; the wavelength division multiplexing assembly performs optical coupling on the first downlink optical signal and the second downlink optical signal; and provides the coupled downlink optical signal to the optical network unit.

Description

technical field [0001] The present application relates to access network optical communication technology, in particular to an optical line terminal. Background technique [0002] In order to realize the compatibility between 50G Passive Optical Network (PON) and 10G PON, it is necessary for Optical Line Terminal (OLT) to support both 50G PON and 10G PON. Wavelength Division Multiplexing, WDM) to realize the multiplexing and demultiplexing of 50G OLT and 10GOLT, requires the cooperation of 50G OLT and 10G OLT, and the external WDM introduces additional insertion loss, takes up a large additional space, and reduces the port density of OLT , and the use is not flexible enough. Contents of the invention [0003] Embodiments of the present application are expected to provide an optical line terminal. [0004] In the first aspect, the embodiment of the present application provides an optical line terminal, which is connected between the central office and the optical network ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J14/02H04B10/40
Inventor 秦强程炽雄王盟成璇璇石川
Owner GUANGXUN SCI & TECH WUHAN
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