Title :
Improvement of directly modulated diode-laser pulses using an optical delay interferometer
Author :
Wong, C.S. ; Tsang, H.K.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, China
Abstract :
An optical delay interferometer (ODI) is proposed to compensate the signal distortion in a directly modulated distributed feedback laser diode. Experiments with an ODI demonstrate improvement in pulse shape by suppressing pulse overshoot in directly modulated lasers. The power penalty is decreased by 1 dB. Numerical simulations for the waveform compensation agree with the experimental results.
Keywords :
compensation; distributed feedback lasers; electro-optical modulation; light interferometers; optical communication equipment; optical delay lines; optical pulse shaping; semiconductor lasers; ODI; directly modulated distributed feedback laser diode; optical delay interferometer; pulse overshoot suppression; signal distortion compensation; waveform compensation; Delay; Diodes; Distributed feedback devices; Optical distortion; Optical feedback; Optical interferometry; Optical modulation; Optical pulse shaping; Optical pulses; Pulse modulation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.823098
