Grating surface-emitting diode laser with lenslike medium

Alan H. Paxton

doi:10.1117/12.349252

24 May 1999 Grating surface-emitting diode laser with lenslike medium

Alan H. Paxton

Proceedings Volume 3611, Laser Resonators II; (1999) https://doi.org/10.1117/12.349252
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

A concept for a grating surface emitting semiconductor laser with a lenslike medium that causes divergence along the lateral direction is described. In principle, the output beam can be diffraction limited. A second-order grating is fabricated with straight teeth which are perpendicular to the directions of propagation of the beams along the laser axis. The constant radius of curvature of the mode results in the matching of the reflected beam with the laser mode. The output beam will exhibit mild astigmatism which can easily be corrected. The astigmatism is the same for the waves traveling in both directions. The divergence of the mode discourages the breakup of the counterpropagating beams into filaments. Surface emission decreases the optical intensity of the laser mode and can essentially eliminate the output power through the facets. This type of laser is a candidate for high power operation.

Citation Download Citation

Alan H. Paxton "Grating surface-emitting diode laser with lenslike medium", Proc. SPIE 3611, Laser Resonators II, (24 May 1999); https://doi.org/10.1117/12.349252

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