Title :
A 250 Hz spectral linewidth 1.5 mu m MQW-DFB laser diode with negative-electrical-feedback
Author :
Kourogi, Motonobu ; Shin, Chul-Ho ; Ohtsu, Motoichi
Author_Institution :
Tokyo Inst. of Technol., Kanagawa, Japan
fDate :
6/1/1991 12:00:00 AM
Abstract :
A 1.5 mu m corrugation-pitch-modulated MQW-DFB laser diode (LD) with multielectrodes was frequency stabilized using the negative electrical feedback technique. The FM response of the LD was precisely measured and used for the feedback loop design. The FM noise of the LD was reduced and reached 10 Hz/sup 2//Hz at 1 kHz>
Keywords :
distributed feedback lasers; electron device noise; laser frequency stability; laser transitions; semiconductor junction lasers; semiconductor quantum wells; spectral line breadth; 1.5 micron; FM noise; FM response; Fourier frequency; controlled power concentration ratio; corrugation-pitch-modulated MQW-DFB laser diode; feedback loop design; frequency stabilized; multielectrodes; negative electrical feedback technique; spectral linewidth; Bandwidth; Diode lasers; Feedback loop; Frequency; Laser feedback; Laser noise; Noise reduction; Optical feedback; Optical noise; Quantum well devices;
Journal_Title :
Photonics Technology Letters, IEEE
