Title :
675 mW diffraction limited operation and thermal characteristics of laser diode arrays in an external cavity
Author :
Waarts, R.G. ; Mehuys, D. ; Welch, D.F. ; Streifer, W.
Author_Institution :
Spectra Diode Labs., San Jose, CA, USA
Abstract :
A compact external cavity configuration consisting of a high power gain guided laser array, a graded index lens and a mode selective mirror was investigated. The laser array was stabilised in a single spatial mode to an output power of 950 mW with 675 mW in a diffraction limited lobe under pulsed operation. The spatial mode properties of the external cavity are also correlated to thermal lasing effects in good agreement with theory.
Keywords :
gradient index optics; laser cavity resonators; laser modes; optical modulation; semiconductor junction lasers; 675 mW; 950 mW; compact external cavity configuration; diffraction limited lobe; diffraction limited operation; graded index lens; high power gain guided laser array; laser diode arrays; mode selective mirror; output power; pulsed operation; semiconductor laser; single spatial mode; thermal characteristics; thermal lasing effects;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901017
