混合高密度分波多工系統架構在80公里大有效面積光纖傳送CATV、256-QAM與OC-48信號

A Hybrid CATV/256-QAM/OC-48 DWDM System over an 80-km LEAF Transport

蔡文星(Wen-Shing Tsai) ； 呂海涵(Hai-Han Lu)

《光學工程》 85期 (2004/03) Pp. 37-46

https://doi.org/10.30011/OE.200403.0004

摘要

一個混合高密度波長分波多工(DWDM)系統包含CATV、256-QAM與OC-48傳輸骨幹被提出與驗證。它使用兩個波長來傳送AM-VSB CATV信號，一個波長傳送256-QAM數位帶通信號與四個波長傳送OC-48(2.5 Gb/s)數位基頻信號。經過80 km的大有效面積光纖(LEAF)傳送後，對於AM-VSB CATV信號通道，載波雜訊比(CNR)≥50 dB、二階拍差失真(CSO)≥67 dB和三階拍差失真(CTB)≥67 dB的好性能可被獲得，並且低的誤碼率(BER)≤10^(-9)可在256-QAM與OC-48數位信號通道中達成。

關鍵字

混合高密度分波多工 ； 大有效面積光纖

並列摘要

A hybrid dense-wavelength-division-multiplexing (DWDM) system for CATV, 256-QAM and OC-48 trunking is proposed and demonstrated. It used two wavelengths for AM-VSB CATV, one wavelength for 256-QAM digital passband signals and four wavelengths for OC-48 (2.5 Gb/s) digital baseband signals transport. Good performances of carrier-to-noise ratio (CNR)≥50 dB, composite second order (CSO)≥67 dB and composite triple beat (CTB)≥65 dB were obtained for AM-VSB CATV; and low bit error rate (BER＜10^(-9)) had been achieved for 256-QAM and OC-48 digital signals over an 80-km large effective area fiber (LEAF) transport.

並列關鍵字

Index Terms-Hybrid dense-wavelength-division-multiplexing ； large effective area fiber