Title :
Generation and Transmission of 10-Gb/s RZ-DPSK Signals Using a Directly Modulated Chirp-Managed Laser
Author :
Jia, Wei ; Xu, Jing ; Liu, Zhixin ; Tse, Kam-Hon ; Chan, Chun-Kit
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
We propose and experimentally demonstrate the generation of a 10-Gb/s return-to-zero differential phase-shift keying (RZ-DPSK) signal based on a directly modulated chirp-managed laser (CML), without requiring any differential encoder and optical phase modulator (PM). It shows better fiber chromatic dispersion tolerance and comparable nonlinearity tolerance, compared with a PM-based RZ-DPSK signal using 231 - 1 pseudorandom bit sequence data.
Keywords :
chirp modulation; differential phase shift keying; optical fibre communication; optical fibre dispersion; RZ-DPSK; bit rate 10 Gbit/s; differential encoder; directly modulated chirp-managed laser; fiber chromatic dispersion tolerance; nonlinearity tolerance; optical phase modulator; pseudorandom bit sequence data; return-to-zero differential phase-shift keying; Chirp; Fiber lasers; Optical fiber dispersion; Optical fibers; Optical filters; Optical transmitters; Receivers; Chirp-managed laser (CML); direct modulation; return-to-zero differential phase-shift keying (RZ-DPSK);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2092761
