High-power (575 mW) single-lobed emission from a phased-array laser
Abstract
Phased-array lasers which emit up to 575 mW in a 1.9 degree (FWHM) single far-field lobe corresponding to the lowest-order supermode are described. Single-lobe operation is achieved in laser whose stripes are offset near the facet by half a period from the stripes in the central part of the cavity and are linearly chirped across the diode. This stripe geometry tends to lower the threshold of the single-lobe mode relative to that of the undesired double-lobe mode.
- Publication:
-
Electronics Letters
- Pub Date:
- July 1985
- DOI:
- 10.1049/el:19850426
- Bibcode:
- 1985ElL....21..603W
- Keywords:
-
- Gallium Arsenide Lasers;
- High Power Lasers;
- Laser Outputs;
- Phase Locked Systems;
- Phased Arrays;
- Far Fields;
- Radiation Distribution;
- Lasers and Masers