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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 labeled received power can be obtained. 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 Finally, a payload of 1.25 Gb / s could obtain 28.2 dBm received power and 9.5-dB OSNR.