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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 15 — May. 20, 2009
  • pp: 2789–2792

Microsystem 671 nm light source for shifted excitation Raman difference spectroscopy

Martin Maiwald, Heinar Schmidt, Bernd Sumpf, Götz Erbert, Heinz-Detlef Kronfeldt, and Günther Tränkle  »View Author Affiliations


Applied Optics, Vol. 48, Issue 15, pp. 2789-2792 (2009)
http://dx.doi.org/10.1364/AO.48.002789


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Abstract

We present a compact wavelength stabilized diode laser system at 671 nm on a micro-optical bench as a light source for shifted excitation Raman difference spectroscopy (SERDS). The laser system consists of two broad-area gain media in separate laser cavities using two reflection Bragg gratings with slightly different center wavelengths. A spectral width below 100 pm and a constant wavelength shift of 0.57±0.06 nm is obtained up to output powers of 250 mW. The suitability of this light source for SERDS is demonstrated using Raman spectra of ethanol with increasing concentrations of Cresyl Violet as the fluorescent contaminant.

© 2009 Optical Society of America

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(140.4780) Lasers and laser optics : Optical resonators
(230.3990) Optical devices : Micro-optical devices
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6450) Spectroscopy : Spectroscopy, Raman

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 26, 2009
Manuscript Accepted: April 17, 2009
Published: May 11, 2009

Citation
Martin Maiwald, Heinar Schmidt, Bernd Sumpf, Götz Erbert, Heinz-Detlef Kronfeldt, and Günther Tränkle, "Microsystem 671 nm light source for shifted excitation Raman difference spectroscopy," Appl. Opt. 48, 2789-2792 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-15-2789

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