Title :
500 mW coherent large aperture ring oscillators
Author :
Dzurko, K.M. ; Scifres, D.R. ; Hardy, A. ; Welch, D.F. ; Waarts, R.G. ; O´Brien, Stephen
Author_Institution :
Spectra Diode Labs., San Jose, CA, USA
fDate :
7/30/1992 12:00:00 AM
Abstract :
A large aperture ring laser having a diffraction limited output measuring 0.2 degrees *0.2 degrees is described. The design uses angled incidence onto monolithic gratings for feedback and mode selectivity. Devices of this design have exhibited threshold current density less than 300 A/cm2 and over 500 mW of single frequency output power.
Keywords :
integrated optics; laser modes; ring lasers; semiconductor junction lasers; 540 mW; GaAs-AlGaAs-InGaAs; MOPA structures; angled incidence; coherent large aperture ring oscillators; diffraction limited output; feedback; laser diodes; mode selectivity; monolithic gratings; ring laser; single frequency output power; threshold current density;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920938
