Title :
Single mode multiple-element laser array with grating filter
Author :
Dong, Jie ; Arai, Shigehisa ; Ikeda, Tetsu ; Komori, Kazuhiro
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan
fDate :
7/1/1993 12:00:00 AM
Abstract :
A 1.5-μm wavelength grating filter laser array (GFA) structure which consists of a positive-index-guided multiple-element array region and a laterally unguided grating filter region is proposed and theoretically analyzed for realizing in-phase supermode and simultaneous single-longitudinal-mode operation. A five-element GaInAsP/InP GFA with a lasing wavelength of ~1.5 μm was fabricated and its single-longitudinal-mode/in-phase supermode operation was demonstrated up to four times the threshold current
Keywords :
III-V semiconductors; diffraction gratings; gallium arsenide; gallium compounds; indium compounds; laser modes; laser theory; optical filters; refractive index; semiconductor laser arrays; 1.5 micron; GaInAsP-InP; IR; five-element; grating filter; in-phase supermode; lasing wavelength; laterally unguided grating filter region; multiple-element laser array; positive-index-guided multiple-element array region; semiconductor laser arrays; single-longitudinal-mode operation; threshold current; Filters; Gratings; Laser modes; Laser theory; Optical arrays; Optical fiber communication; Phased arrays; Refractive index; Stimulated emission; Threshold current;
Journal_Title :
Quantum Electronics, IEEE Journal of
