Title :
Single-lobe phased-array diode lasers
Author :
Streifer, W. ; Hardy, A. ; Burnham, R.D. ; Scifres, D.R.
Author_Institution :
Xerox Palo Alto Research Center, Palo Alto, USA
Abstract :
We show mathematically that the lowest-order supermode of a real-refractive-index phase-locked semiconductor diode laser array, which radiates into a single narrow far-field lobe, is favoured by its lower threshold when the gain in the interspaces between the waveguides exceeds that of the waveguides themselves.
Keywords :
laser modes; laser theory; semiconductor junction lasers; gain; lowest-order supermode; narrow farfield lobe; phase-locked semiconductor diode laser array; single lobe phased array diode lasers; waveguides;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850082
