Single transverse mode selectively oxidized vertical-cavity lasers

Kent D. Choquette; Kent M. Geib; Ronald D. Briggs; Andrew A. Allerman; Jana Jo Hindi

doi:10.1117/12.384379

1 May 2000 Single transverse mode selectively oxidized vertical-cavity lasers

Kent D. Choquette, Kent M. Geib, Ronald D. Briggs, Andrew A. Allerman, Jana Jo Hindi

Proceedings Volume 3946, Vertical-Cavity Surface-Emitting Lasers IV; (2000) https://doi.org/10.1117/12.384379
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

Abstract

Vertical cavity surface emitting lasers (VCSELs) which operate in multiple transverse optical modes have been rapidly adopted into present data communication applications which rely on multi-mode optical fiber. However, operation only in the fundamental mode is required for free space interconnects and numerous other emerging VCSEL applications. Two device design strategies for obtaining single mode lasing in VCSELs based on mode selective loss or mode selective gain are reviewed and compared. Mode discrimination is attained with the use of a thick tapered oxide aperture positioned at a longitudinal field null. Mode selective gain is achieved by defining a gain aperture within the VCSEL active region to preferentially support the fundamental mode. VCSELs which exhibit greater than 3 mW of single mode output power at 850 nm with mode suppression ratio greater than 30 dB are reported.

Citation Download Citation

Kent D. Choquette, Kent M. Geib, Ronald D. Briggs, Andrew A. Allerman, and Jana Jo Hindi "Single transverse mode selectively oxidized vertical-cavity lasers", Proc. SPIE 3946, Vertical-Cavity Surface-Emitting Lasers IV, (1 May 2000); https://doi.org/10.1117/12.384379

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