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Proceedings Paper

High-efficiency coupling for high-aspect-ratio laser diodes
Author(s): Tanya K. Oleskevich
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Paper 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.

Paper Details

Date Published: 15 January 1996
PDF: 9 pages
Proc. SPIE 2610, Laser Diode Chip and Packaging Technology, (15 January 1996); doi: 10.1117/12.230088
Show Author Affiliations
Tanya K. Oleskevich, Seastar Optics Inc. (Canada)


Published in SPIE Proceedings Vol. 2610:
Laser Diode Chip and Packaging Technology
Pei Chuang Chen; Tomas D. Milster, Editor(s)

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