Frequency-swept coherently detected spectral amplitude code for flexible implicit optical label switching  

作　　者：曹永盛 陈福深 杨志高 

机构地区：[1]Key Laboratory of Broadband Fiber Transmission and Communication Networks, Ministry of Education, School of Communication and Information Engineering, University of Electronic Science and Technology of China

出　　处：《Chinese Optics Letters》2011年第7期9-12,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 60771045);the National Defense Pre-research Foundation of China (Nos. 9140A23060509DZ0227 and 9140A02060410DZ0225);the Fundamental Research Funds for the Central Universities (No. ZYGX2010J007);the Open Fund of the Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications) under the Ministry of Education of China

摘　　要：A new optical label switching system with coherently detected implicit spectral amplitude code （SAC） labels is proposed in this letter. The implicit SAC labels are recognized using a frequency-swept local light source oscillator. Intensity modulation payloads of 625 Mb/s and 1.25 Gb/s are considered. Label and payload bit error rate （BER） performances are assessed and compared by simulations. The results reveal that, at a BER value of 10-9, -32.4-dBm label received power can be obtained. In addition, 8.3-dB optical signal-to-noise ratio （OSNR） is obtained when carrying a payload of 625 Mb/s. The label BER value hardly reaches 10-9 if the payload bit rate is at 1.25 Gb/s; however, a high payload bit rate only has little influence on received payload quality at a BER value of 10-9. Finally, a payload of 1.25 Gb/s could obtain -28.2 dBm received power and 9.5-dB OSNR.A new optical label switching system with coherently detected implicit spectral amplitude code （SAC） labels is proposed in this letter. The implicit SAC labels are recognized using a frequency-swept local light source oscillator. Intensity modulation payloads of 625 Mb/s and 1.25 Gb/s are considered. Label and payload bit error rate （BER） performances are assessed and compared by simulations. The results reveal that, at a BER value of 10-9, -32.4-dBm label received power can be obtained. In addition, 8.3-dB optical signal-to-noise ratio （OSNR） is obtained when carrying a payload of 625 Mb/s. The label BER value hardly reaches 10-9 if the payload bit rate is at 1.25 Gb/s; however, a high payload bit rate only has little influence on received payload quality at a BER value of 10-9. Finally, a payload of 1.25 Gb/s could obtain -28.2 dBm received power and 9.5-dB OSNR.

关 键 词：Light sources Optical signal processing Signal to noise ratio SWITCHING 

分 类 号：TN253[电子电信—物理电子学]