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Proceedings Paper

Circular lasers for telecommunications and rf/photonics applications
Author(s): Giora Griffel
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Paper Abstract

Following a review of ring resonator research in the past decade we shall report a novel bi-level etching technique that permits the use of standard photolithography for coupling to deeply-etched ring resonator structures. The technique is employed to demonstrate InGaAsP laterally- coupled racetrack ring resonators laser with record low threshold currents of 66 mA. The racetrack laser have curved sections of 150 micrometers radius with negligible bending loss. The lasers operate CW single mode up to nearly twice threshold with a 26 dB side-mode-suppression ratio. We shall also present a transfer matrix formalism for the analysis of ring resonator arrays and indicate application examples for flat band filter synthesis.

Paper Details

Date Published: 18 April 2000
PDF: 5 pages
Proc. SPIE 3947, In-Plane Semiconductor Lasers IV, (18 April 2000); doi: 10.1117/12.382097
Show Author Affiliations
Giora Griffel, Sarnoff Corp. (United States)

Published in SPIE Proceedings Vol. 3947:
In-Plane Semiconductor Lasers IV
Luke J. Mawst; Ramon U. Martinelli, Editor(s)

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