Analysis of symmetric Y-junction laser arrays with uniform near-field distribution
Abstract
The analysis of a Y-junction laser array is presented. It is shown that the lowest-order cavity mode of this array has the lowest threshold gain and is thus preferentially excited. This mode has a uniform near-field distribution. Compared with the sinusoidal near-field distribution of the supermodes of the evanescently coupled laser arrays, this uniformity not only can delay the onset of the spatial-hole burning, which is the source of unstable far-field characteristic at high power level, it also allows for higher total power output before catastrophic mirror damage.
- Publication:
-
Electronics Letters
- Pub Date:
- June 1986
- DOI:
- 10.1049/el:19860441
- Bibcode:
- 1986ElL....22..644C
- Keywords:
-
- Arrays;
- High Power Lasers;
- Laser Cavities;
- Laser Modes;
- Near Fields;
- Hole Burning;
- Modal Response;
- Lasers and Masers