Acta Metallurgica Sinica(English letters)

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A Novel Self-Synchronization Scheme Based on Cross Gain Modulation and Self-frequency Shift in an SOA

YE Xiao-hua; ZHANG Fang-di; ZHANG Min   

  1. Key Laboratory of Optical Communication and Lightwave Technologies, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2005-03-18 Revised:1900-01-01 Online:2006-03-30
  • Contact: YE Xiao-hua

Abstract: This paper presents a novel self-synchronization scheme utilizing a semiconductor optical amplifier and an optical band-pass filter. Implemented using cross gain modulation and self frequency shift, the proposed scheme has a simple structure that does not need any special marker pulses. With proper tuning of semiconductor optical amplifier and optical band-pass filter parameters and delay time of the control pulse, we, through simulation, obtain a synchronization clock with the intensity contrast ratio of more than 20 dB from RZ pseudorandom bit sequence at different operation speeds. 16 Refs. In English.

Key words: optical packet networks;self-synchronization;SOA;FS;CR

CLC Number: