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Single-fiber four-way symmetrical optical module

A single-fiber four-way, optical module technology, applied in electromagnetic wave transmission systems, electrical components, transmission systems, etc., can solve problems such as incompatibility with GEPONOLT systems, and achieve the effect of solving upstream bandwidth bottlenecks and reducing system upgrade costs.

Active Publication Date: 2012-04-11
SOURCE PHOTONICS CHENGDU
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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-speed single-fiber four-way symmetrical dual-rate EPON OLT optical module that can work in the OLT system of GEPON and can also work in the 10GEPON OLT system, so as to solve the problem that the 10G EPON OLT system in the prior art can only work in Asymmetrical mode, and not compatible with GEPON OLT system, technical issues to achieve smooth upgrade and transition from GEPON OLT to 10G EPON OLT

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[0015] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0016] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0017] The optical module involved in the present invention is a high-speed single-fiber four-way symmetrical OLT optical module that realizes compatible design of the 1G EPON OLT technical solution and the 10G EPON OLT technical solution. Such as figure 1 As shown, the schematic diagram of the single-fiber four-way symmetrical OLT system. The system selects the rate so that the optical module can work in three different rate modes. The fir...

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Abstract

The invention discloses a single-fiber four-way symmetrical optical module, which belongs to the technical field of optical communication. The optical module comprises a connector, an optical interface, an optical module transmitting end part and an optical module receiving end part, wherein the optical module transmitting end part comprises a 10G equalizer / clock data recovery unit, a 10G laser driving unit, a 10G laser, a 1G laser driving unit, a 1G laser, a wavelength division multiplexing unit and a transmitting end microcontroller; and the optical module receiving end part comprises an avalanche photodiode, a burst mode transimpedance amplifier, a burst mode limiter amplifier, a 1:2 clock fan-out buffer unit, a level shift unit, a booster circuit and a receiving end microcontroller. According to the single-fiber four-way symmetrical optical module, the bottleneck problem of the uplink bandwidth of an Ethernet passive optical network (EPON) system can be solved, the symmetrical rate of a gigabit Ethernet passive optical network optical line terminal (GEPON OLT) is supported, the symmetrical rate and the unsymmetrical rate of 10G EPON OLT can be also supported, a system can be kept to smoothly transit and upgrade, and the system upgrading cost of operators can be effectively lowered.

Description

technical field [0001] The invention relates to an Ethernet passive optical network optical line terminal (EPON OLT) technology, in particular to a single-fiber four-way high-speed symmetrical rate 10G EPON OLT optical module. Background technique [0002] With the promotion and popularization of optical fiber access technology (FTTX), high-speed broadband services are gradually changing the way people live and work. Due to the continuous increase of people's demand for bandwidth, the current 1G EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network) technology has gradually been unable to meet the growing demand for broadband services. Therefore, the 10G EPON technology that can provide higher bandwidth becomes the solution of the next generation passive broadband access network logically. In EPON technology, the optical transceiver module of OLT (Optical Line Terminal, optical cable terminal equipment, terminal equipment used to connect optical fiber tru...

Claims

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Application Information

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IPC IPC(8): H04B10/12H04B10/155H04B10/158H04B10/27H04J14/02
Inventor 帅欣蒋旭杨毅卢勇
Owner SOURCE PHOTONICS CHENGDU
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