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.
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
