Title :
Optical frequency spacing tunable four-channel integrated 1.55 mu m multielectrode distributed-feedback laser array
Author :
Yasaka, Hiroshi ; Nakano, Junichi ; Fukuda, Mitsuo ; Nakano, Yoshinori ; Itaya, Yoshio
Author_Institution :
Opto-Electron. Lab., NTT, Kanagawa, Japan
fDate :
4/1/1989 12:00:00 AM
Abstract :
A four-channel integrated 1.55- mu m multielectrode distributed-feedback (DFB) laser array was fabricated using the metallorganic vapor-phase deposition/liquid-phase epitaxy (MOVPE/LPE) hybrid method. Simultaneous single-longitudinal mode operation was achieved in each multielectrode DFB laser on a single chip. Utilizing the frequency tunability of multielectrode DFB lasers, optical frequency spacings were controlled and set to within a few gigahertz. The drift of frequency spacings due to temperature fluctuation was in the range of +or-50 MHz for temperature control of +or-0.1 degrees .<>
Keywords :
distributed feedback lasers; integrated optoelectronics; laser tuning; liquid phase epitaxial growth; optical workshop techniques; semiconductor growth; semiconductor junction lasers; vapour phase epitaxial growth; 1.55 micron; MOVPE/LPE; distributed-feedback laser; four channel integrated laser arrays; frequency spacings drift; frequency tunability; metallorganic vapour phase deposition/liquid phase epitaxy method; multielectrode DFB laser; optical frequency spacings; semiconductor laser; simultaneous single-longitudinal mode operation; single chip; temperature control; temperature fluctuation; Epitaxial growth; Epitaxial layers; Fluctuations; Frequency; Integrated optics; Laser modes; Optical arrays; Optical control; Temperature distribution; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
