Title :
High power operation of phase-shifted DFB lasers with amplitude modulated coupling coefficient
Author :
Talneau, A. ; Charil, J. ; Ougazzaden, A. ; Bouley, J.C.
Author_Institution :
Lab. de Bagneux, CNET, France
fDate :
7/16/1992 12:00:00 AM
Abstract :
The performance characteristics of amplitude modulated coupling (AMC) phase-shifted MQW DFB lasers emitting near 1.55 mu m are reported for the first time. The AMC is obtained by the holographic double-exposure technique, it provides single longitudinal mode oscillation up to 78 mW for I=500 mA. This result confirms that AMC flattens the power distribution along the laser cavity. Linewidths as low as 600 kHz have been obtained for cavities as short as 600 mu m at P=15 mW.
Keywords :
III-V semiconductors; amplitude modulation; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; laser modes; optical modulation; semiconductor junction lasers; 1.55 micron; 500 mA; 78 mW; GaInAsP; MQW DFB lasers; amplitude modulated coupling coefficient; high power operation; holographic double-exposure technique; lasers; linewidths; phase-shifted; power distribution; single longitudinal mode oscillation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920887
