Title :
Influence of facet reflection on the performance of a DFB laser integrated with an optical amplifier/modulator
Author :
Hashimoto, Jun-ichi ; Nakano, Yoshiaki ; Tada, Kunio
Author_Institution :
Sumitomo Electr. Ind. Ltd., Yokohama, Japan
fDate :
3/1/1992 12:00:00 AM
Abstract :
The influence of output facet reflection on characteristics of a monolithically integrated optical device consisting of a distributed feedback (DFB) laser and an optical amplifier/modulator is analyzed. Basic equations used for the analysis are the characteristic equation for a DFB laser and the rate equations. As a result, it is known that static and dynamic properties of such optical integrated devices are seriously degraded by the optical feedback from the output facet. It is concluded that the power reflectivity of the output facet should be reduced to at least less than 0.1% for the integrated region to work as an optical amplifier and less than 0.01% as an intensity modulator
Keywords :
distributed feedback lasers; integrated optics; integrated optoelectronics; optical modulation; semiconductor junction lasers; characteristic equation; distributed feedback laser; dynamic properties; intensity modulator; monolithically integrated optical device; optical amplifier/modulator; optical feedback; output facet reflection; power reflectivity; rate equations; Distributed feedback devices; Equations; Integrated optics; Laser feedback; Optical devices; Optical feedback; Optical modulation; Optical reflection; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
