Title :
Generation and Transmission of 10-Gbaud Optical 3/4-RZ-DQPSK Signals Using a Chirp-Managed DBR Laser
Author :
Jia, Wei ; Matsui, Yasuhiro ; Mahgerefteh, Daniel ; Lyubomirsky, Ilya ; Chan, Chun-Kit
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
We have demonstrated the generation and transmission of 10-Gbaud optical 3/4-return-to-zero differential quadrature phase-shift-keying (3/4-RZ-DQPSK) signals using a chirp-managed distributed-Bragg-reflector (DBR) laser (CML), without requiring any differential encoder or external modulator. We realized error-free transmission in 60-km standard single-mode fiber without any dispersion compensation. No optical signal-to-noise ratio penalty was induced. We also investigated the impact of different optical spectrum reshaper filters in CML on the transmission performance. The tolerance against the amplitude fluctuation of the electrical driving signal was also studied.
Keywords :
distributed Bragg reflector lasers; optical communication; quadrature phase shift keying; amplitude fluctuation; chirp-managed DBR laser; chirp-managed distributed-Bragg-reflector laser; different optical spectrum reshaper filters; differential encoder; dispersion compensation; electrical driving signal; error-free transmission; external modulator; optical signal-to-noise ratio; transmission performance; Chirp; Optical fiber filters; Optical fibers; Optical transmitters; Signal to noise ratio; Chirp-managed distributed-Bragg-reflector (DBR) laser (CML); direct modulation; return-to-zero differential quadrature phase-shift-keying (RZ-DQPSK);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2213066
