High-efficiency coupling for high-aspect-ratio laser diodes

Tanya K. Oleskevich

doi:10.1117/12.230088

15 January 1996 High-efficiency coupling for high-aspect-ratio laser diodes

Tanya K. Oleskevich

Proceedings Volume 2610, Laser Diode Chip and Packaging Technology; (1996) https://doi.org/10.1117/12.230088
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

A method of improving the coupling efficiency of an elliptical light beam into an optical fiber is achieved with a novel cylindrical concave microlens. Coupling efficiencies of 87% from single transverse mode diode lasers into single-mode optical fiber have been achieved with this microlens when used in conjunction with a pair of bulk optic asphere lenses. The microlens is amenable to production processes, is effective for a wide range of beam aspect ratios and represents a significant improvement over the 60 - 65% coupling efficiency which is typical of volume fiber coupling techniques to date.

Citation Download Citation

Tanya K. Oleskevich "High-efficiency coupling for high-aspect-ratio laser diodes", Proc. SPIE 2610, Laser Diode Chip and Packaging Technology, (15 January 1996); https://doi.org/10.1117/12.230088

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