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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 9 — Sep. 1, 2000
  • pp: 1589–1598

Diode-pumped broadband vertical-external-cavity surface-emitting semiconductor laser applied to high-sensitivity intracavity absorption spectroscopy

A. Garnache, A. A. Kachanov, F. Stoeckel, and R. Houdré  »View Author Affiliations


JOSA B, Vol. 17, Issue 9, pp. 1589-1598 (2000)
http://dx.doi.org/10.1364/JOSAB.17.001589


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Abstract

A diode-pumped broadband multiple-quantum-well vertical-external-cavity surface-emitting semiconductor laser has been developed for high-sensitivity intracavity laser-absorption spectroscopy. The semiconductor structure design has been optimized so as to provide maximum laser-emission bandwidth and wavelength tunability. The laser has a 100-mW threshold of continuous room-temperature operation, and it can be tuned within 25 nm around its design wavelength (980 nm). A detection limit lower than 10−10 per centimeter of absorption path has been achieved, given ∼3×10−11 cm−1 Hz−1/2. Its spectro-temporal dynamics has been studied in the time range from a few microseconds to ∼1 s. No evidence of nonlinear mode interactions, which in many cases limit the sensitivity, has been observed. We have also shown that with a cavity length reduced to 2.5 cm, the laser is very attractive as a tunable single-frequency source owing to its stable operation in a single TEM00 mode at a pump power of up to 1 W.

© 2000 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.3600) Lasers and laser optics : Lasers, tunable
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers

Citation
A. Garnache, A. A. Kachanov, F. Stoeckel, and R. Houdré, "Diode-pumped broadband vertical-external-cavity surface-emitting semiconductor laser applied to high-sensitivity intracavity absorption spectroscopy," J. Opt. Soc. Am. B 17, 1589-1598 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-9-1589

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