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Very Short Reach (VSR) optical transmission data conversion chip design

Author: Li
Tutor: WangZhiGong
School: Southeast University
Course: Circuits and Systems
Keywords: Very short reach optical transmission (VSR) Data conversion chip FPGA Frame synchronization circuit BER
CLC: TP335
Type: Master's thesis
Year: 2005
Downloads: 88
Quote: 0
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Abstract


In recent years , with the rapid development of INTERNET , people demand for bandwidth has grown exponentially , high-speed optical interconnection between network devices require higher bandwidth and lower costs, and cost-effective very short distance (Very Short Reach, VSR) optical transmission technology is the solution to a short distance ( 300 m ) optical interconnect preferred solution . In the OC-192 speed grade (10Gb / s) and OC-768 speed grade (40Gb / s) , the Optical Internetworking Forum to develop a series of VSR optical transmission application protocol , which VSR4-01.0, VSR4-03.0 and VSR5- 01.0 protocol data conversion chip is the main research object. In the existing SDH frame alignment circuit performance based on the analysis , we propose a binary search based innovation (Binary Search) frame alignment method . Simulation and test results have shown that the circuit at the same data bits wide conditions, performance was significantly better than the existing frame alignment circuit , has applied for national patent. Error correction performance of the system by the analysis of a byte error correction method proposed . Analysis pointed out that this method can make full use of the system structure, greatly improve the system error correction capability . In VSR4-01 circuit , based on the design of the data conversion chip VSR4-03.0 , in the entire design on the basis of the full simulation , using Stratix GX series FPGA design and verification system test hardware platform , the SDH tester veneer loopback testing and peer communications test , VSR4-03 interface system using multi -mode fiber transmission error rate of less than 10-13 . In order to fully grasp the VSR technology, designed for OC-768 speed grade VSR5-01 data conversion chip digital part of the entire circuit is simulated , and the key modules of the FPGA download test , simulation and test results prove that the entire circuit to achieve the design requirements. The project supported by the National High Technology Research and Development Program ( 863 Program ) support thematic issues are optical communication technology , project number 2001AA122032.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Electronic digital computer (not a continuous role in computer ) > Convert the information and its equipment
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