Title :
Flattop mode shaping of a vertical cavity surface emitting laser using an external-cavity aspheric mirror
Author :
Yang, Zhaohui R. ; Leger, James R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
A square-shaped flattop mode was experimentally demonstrated in a broad-area circular-aperture VCSEL using an external-cavity aspheric mirror. The mirror was fabricated by electron-beam lithography on a curved substrate. Excellent single-mode operation was observed.
Keywords :
electron beam lithography; laser beams; laser cavity resonators; laser mirrors; laser modes; optical fabrication; semiconductor lasers; surface emitting lasers; electron-beam lithography; external-cavity aspheric mirror; flattop mode shaping; single-mode operation; vertical cavity surface emitting laser;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
