Title :
GaInAsP distributed feedback laser array
Author :
Twu, Y. ; Dutta, N.K. ; Green, C.A. ; Wynn, J.D.
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ
fDate :
6/9/1988 12:00:00 AM
Abstract :
Reports the fabrication and performance characteristics of a gain-guided coupled distributed feedback laser array. The five-emitter lasers have threshold currents in the range of 300 to 500 mA and emit in a single wavelength with a single-lobed far field. Single-wavelength output powers of ~120 mW have been observed. The authors believe the frequency selective feedback provided by the diffraction grating helps in coherent coupling between the array elements, which results in a single-lobed far field
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; optical communication equipment; semiconductor junction lasers; 120 mW; 300 to 500 mA; DFB; GaInAsP; coherent coupling; diffraction grating; fabrication; five-emitter lasers; frequency selective feedback; gain-guided coupled distributed feedback laser array; output powers; performance characteristics; semiconductors; single wavelength; single-lobed far field; threshold currents;
Journal_Title :
Electronics Letters
