Related Experiment Video
Updated: May 15, 2026
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Generation and transmission of DPSK signals using a directly modulated passive feedback laser
Abdullah S Karar1, Ying Gao, Kang Ping Zhong
1Department of Electrical and Computer Engineering, Queen’s University, Kingston, Ontario, Canada. abdullah.karar@queensu.ca
Abstract:
The generation of differential-phase-shift keying (DPSK) signals is demonstrated using a directly modulated passive feedback laser at 10.709-Gb/s, 14-Gb/s and 16-Gb/s. The quality of the DPSK signals is assessed using both noncoherent detection for a bit rate of 10.709-Gb/s and coherent detection with digital signal processing involving a look-up table pattern-dependent distortion compensator. Transmission over a passive link consisting of 100 km of single mode fiber at a bit rate of 10.709-Gb/s is achieved with a received optical power of -45 dBm at a bit-error-ratio of 3.8 × 10(-3) and a 49 dB loss margin.
