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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 20 — Oct. 15, 2001
  • pp: 1568–1570

Rapid temperature tuning of a 1.4-μm diode laser with application to high-pressure H2O absorption spectroscopy

Scott T. Sanders, Daniel W. Mattison, Jay B. Jeffries, and Ronald K. Hanson  »View Author Affiliations


Optics Letters, Vol. 26, Issue 20, pp. 1568-1570 (2001)
http://dx.doi.org/10.1364/OL.26.001568


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Abstract

Enhanced wavelength tuning of a distributed-feedback InGaAsP diode laser is demonstrated by use of rapid temperature cycling. The laser-active region is cycled from -10 to +50°C (scanning the output from 1399 to 1403 nm) at kilohertz rates by pulsed heating with an auxiliary 532-nm laser. Such 4-nm scans represent a ten-fold increase in the wavelength-scanning range offered by standard current-tuning techniques and thus extend the capabilities of scan-wavelength sensors and systems. As an example application, we demonstrate absorption spectroscopy of H2O vapor at a pressure of 10 atm.

© 2001 Optical Society of America

OCIS Codes
(120.6780) Instrumentation, measurement, and metrology : Temperature
(140.2020) Lasers and laser optics : Diode lasers
(230.6080) Optical devices : Sources
(280.2490) Remote sensing and sensors : Flow diagnostics
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers

Citation
Scott T. Sanders, Daniel W. Mattison, Jay B. Jeffries, and Ronald K. Hanson, "Rapid temperature tuning of a 1.4-μm diode laser with application to high-pressure H2O absorption spectroscopy," Opt. Lett. 26, 1568-1570 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-20-1568

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