10Gb全光3R再生的研究.pdf

25 1 Vol. 25, No . 1 2005 1 A CT A OPT ICA SINICA Jan ary , 2005 : 2005) 01273 10 Gb /s 全光3R 再生的研究* 娄采云 王 桐 霍 力 高以智 章恩耀 ( , 100084) : 10 Gb/ s 3R( ) , , , 3R , 10 Gb/ s 3R : ; 3R ; ; ; : T N929. 11 : A Research on 10 Gb/ s AllOptical 3R R egeneration Lou Caiyun Wang Tong Huo L i Gao Yizhi Zhang Eny ao ( Departm ent of Electron ic En gin eerin g, Tsin gh a University , Beijin g 100084) Abstract: Experimental studies on 10 Gb/ s 3R degraded data regenerati on were reported A method of pr epr ocessing the data signals using comblike filter was proposed in or der to ov er come the pattern effect in the clock recov ery using injection modelocked ring laser based on semi conductor optical amplifier ( SOA) The amplitude fluctuation and timing j itter caused by the pattern effect in cl ock pulses wer e greatly r educed Furthermore, it was also demonstrated that clock coul d be r ecovered fr om the badly degraded signals The recover ed opti cal clock fr om degraded signals is shown to be fr ee of pattern The core of opti cal r eshaping is a decisi on gate feat uring signal extincti on rati o enhancement and noise r educt ion The r eshaping based on an el ectroabsorpti on modulator was also studied With this technol ogy allopti cal 3R r egeneration was achi ev ed from 10Gb/ s degraded data Key words: optical fiber communicati on technol ogy; allopti cal 3R r eg enerati on; cl ock r ecovery ; pattern effect; comblike filter 1 shaping) ( Retiming) , ( EDFA) , , , , ,