Title :
Diffraction-limited in-phase-mode operation from uniform array of antiguides with enhanced interelement loss
Author :
Botez, D. ; Hayashida, P. ; Mawst, L.J. ; Roth, T.J. ; Peterson, Garrett
Author_Institution :
TRW Space & Technol. Group, Rendondo Beach, CA, USA
Abstract :
Out-of-phase-mode oscillation is suppressed in a nearly resonant array of antiguides by introducing high transverse radiation losses ( approximately=150 cm-1) in the interelement regions. Ten-element devices operate in the in-phase array mode, diffraction-limited up to 2.5*threshold, and with lobe widths of 1.6*diffraction limit at 4*threshold (230 mW total power).
Keywords :
integrated optics; laser modes; optical losses; optical waveguides; semiconductor junction lasers; 230 mW; GaAs-AlGaAs; antiguides; diffraction limited beam; high transverse radiation losses; in-phase-mode operation; integrated optics; interelement loss; interelement regions; nearly resonant array; out of phase mode oscillation suppression; semiconductor lasers; uniform array;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890858
