All-Optical Generation of Optical BPSK/QPSK Signals Interleaved With Reference Light

作者：Okamura Yasuhiro^*; Hanawa Masanori

来源：IEEE Photonics Technology Letters, 2012, 24(20): 1789-1791.

DOI：10.1109/LPT.2012.2209867

• All-optical interleaving
• optical switch
• optical multilevel modulated signals
• self-homodyne detection

In this letter, all-optical generation of multilevel modulated signals interleaved with reference light is proposed and experimentally demonstrated. Four Gbaud BPSK and QPSK signals interleaved with reference light are generated using a LiNbO3 based 2 x 2 optical switch, and the generated signals are demodulated by self-homodyne detection using an optical delay interferometer and a single photodetector. Moreover, we obtained negligible difference of error vector magnitude values between an external cavity laser with 100-kHz linewidth and a distributed-feedback laser with 6-MHz linewidth.

• 出版日期2012-10-15