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A kind of onu module used in passive optical network above 50g

A passive optical network and optical component technology, applied in the field of optical communication, can solve the problems of high technical challenges, high-speed signal dispersion cost, high power budget of 50G optical devices, etc., to achieve the effect of rate upgrade

Active Publication Date: 2021-12-17
SONT TECH (SHEN ZHEN) LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] It cannot be ignored that the technical challenges of the PMD (Polarization Mode Dispersion, polarization film dispersion) layer of 50G PON are great, and it is necessary to focus on solving the problems of high dispersion cost caused by high-speed signals, 50G optical devices and high power budget

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  • A kind of onu module used in passive optical network above 50g
  • A kind of onu module used in passive optical network above 50g

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Embodiment Construction

[0047] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0048] Usually, it will be equipped with an optical node for interconnection between equipment including downlink optical receiver, uplink optical transmitter, and multiple bridge amplifiers for network monitoring.

[0049] The ONU module is used to: 1) choose to receive the broadcast data sent by the OLT; 2) respond to the ranging and power control commands sent by the OLT, and make corresponding adjustments; 3) cache the user's Ethernet data and store it in the Send in the uplink direction in the send window.

[0050] Such as figure 1 As shown, the ONU module used in the passive optical network above 50G in this embodiment may include: a gold finger inserted on the system board, a burst uplink transmitting channel above 25G, a continuous downlink receiving c...

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Abstract

The invention relates to an ONU module used in a passive optical network above 50G. The ONU module includes: a gold finger plugged on a system board, a burst uplink transmission channel above 25G, a continuous downlink receiving channel above 50G, and a BOSA Optical components; transmission channels include: DFB driver chip, core package coaxial TO component; DFB driver chip controls the light emission of DFB according to the BEN signal provided by the system board, so that the ONU module can burst transmit more than 25G in the time slice specified by the OLT module NRZ signal, the receiving channel includes: coaxial package TO, DSP; the coaxial package TO receives the optical signal received through BOSA optical components, and converts it into a PAM4 electrical signal above 50G, DSP is used to decompose the PAM4 electrical signal into two 25G The above NRZ RX signal is input to the system board. The ONU module of the present invention can effectively increase the downlink rate of the access network from 10G to 50G and the uplink rate from 10G to 25G at the client end.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an ONU (Optical Network Unit, optical node) module used in a passive optical network above 50G. Background technique [0002] At present, my country's operators and manufacturers play an important role in the global optical access network industry. The current network is in the transition stage to 10G PON (Passive Optical Network), and it is also a critical time for the development and selection of the next-generation PON technology. [0003] In terms of next-generation PON technology selection, in terms of speed, there are 25G, 50G, 100G and other options. The difference between 25G and 10G is too small, while 100G is too difficult, and 50G is relatively moderate, which is also 4 times higher than the previous period (2.5G to 10G). 10G) are basically the same, and 50G PON is suitable as an evolution technology of 10G PON. [0004] At present, manufacturers in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/40H04Q11/00
CPCH04B10/40H04Q11/0067H04Q2011/0084
Inventor 刘能蒋昌明魏志坚郑波过开甲孙鼎张伟
Owner SONT TECH (SHEN ZHEN) LTD
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