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Proceedings Paper

Narrow linewidth VCSELs for high-resolution spectroscopy
Author(s): Darwin K. Serkland; Gordon A. Keeler; Kent M. Geib; Gregory M. Peake
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Paper Abstract

A future generation of high-performance low-power atomic systems is expected to require VCSEL linewidths below 10 MHz for compatibility with the natural atomic linewidth (5 MHz for cesium) that is realized with atomic beams, trapped atoms, and trapped ions. This paper describes initial efforts at Sandia to reduce VCSEL linewidth by increasing the effective cavity length of an 850-nm monolithic VCSEL. In particular, two aspects of VCSEL design will be discussed: the Q of the VCSEL cavity, and the linewidth enhancement factor of the active region material. We report a factor of two linewidth reduction, from 50 MHz for our standard oxide-aperture VCSEL to 23 MHz for an extended-cavity VCSEL.

Paper Details

Date Published: 6 February 2009
PDF: 8 pages
Proc. SPIE 7229, Vertical-Cavity Surface-Emitting Lasers XIII, 722907 (6 February 2009); doi: 10.1117/12.809455
Show Author Affiliations
Darwin K. Serkland, Sandia National Labs. (United States)
Gordon A. Keeler, Sandia National Labs. (United States)
Kent M. Geib, Sandia National Labs. (United States)
Gregory M. Peake, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 7229:
Vertical-Cavity Surface-Emitting Lasers XIII
Kent D. Choquette; Chun Lei, Editor(s)

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