Abstract

GaAs/GaAlAs heterostructure lasers with a monolithic confocal unstable resonator were demonstrated. The curved mirrors satisfying the confocal condition were fabricated by etching. Close to threshold, the lasers operate in a single lateral mode with a nearly collimated output beam. A single-lobe far-field intensity distribution as narrow as 1.9° full width at half maximum was measured.

© 1986 Optical Society of America

Iterative Diffraction Calculations of Transverse Mode Distributions in Confocal Unstable Laser Resonators

David B. Rensch and Arthur N. Chester
Appl. Opt. 12(5) 997-1010 (1973)

Quasi-stadium laser diodes with an unstable resonator condition

Takehiro Fukushima, Takahisa Harayama, Peter Davis, Pablo O. Vaccaro, Takehiro Nishimura, and Tahito Aida
Opt. Lett. 28(6) 408-410 (2003)

Output characteristics of an unstable confocal resonator

Zuhai Cheng, Xuhui He, and Zaiguang Li
Appl. Opt. 24(23) 4260-4264 (1985)

Confocal unstable optical resonator with asymmetrical magnification

Peter Hoffmann
Opt. Lett. 6(12) 598-600 (1981)

Low-magnification unstable resonators used with ruby and alexandrite lasers

Donald J. Harter and John C. Walling
Opt. Lett. 11(11) 706-708 (1986)