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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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References

  1. M. Maiwald, A. Ginolas, A. Müller, A. Sahm, B. Sumpf, G. Erbert, and G. Tränkle, “Wavelength-stabilized compact diode laser system on a microoptical bench with 1.5 W optical output power,” IEEE Photon. Technol. Lett. 20, 1627-1629 (2008). [CrossRef]
  2. P. A. Mosier-Boss, S. H. Liebermann, and R. Newberry, “Fluorescence rejection in Raman spectroscopy by shifted-spectra, edge detection, and FFT filtering techniques,” Appl. Spectrosc. 49, 630-638 (1995). [CrossRef]
  3. J. Zhao, M. M. Carrabba, and F. Allen, “Automated fluorescence rejection using shifted excitation Raman difference spectroscopy,” Appl. Spectrosc. 56, 834-845 (2002). [CrossRef]
  4. A. P. Shreve, N. J. Cherepy, and R. A. Mathies, “Effective rejection of fluorescence interference in Raman spectroscopy using shifted excitation difference technique,” Appl. Spectrosc. 46, 707-711 (1992). [CrossRef]
  5. M. Maiwald, G. Erbert, A. Klehr, H.-D. Kronfeldt, H. Schmidt, B. Sumpf, and G. Tränkle, “Rapid shifted excitation Raman difference spectroscopy with a distributed feedback diode laser emitting at 785 nm,” Appl. Phys. B 85, 509-512 (2006). [CrossRef]
  6. S. T. McCain, R. M. Willett, and D. J. Bragy, “Multi-excitation Raman spectroscopy technique for fluorescence rejection,” Opt. Express 16, 10975-10991 (2008). [CrossRef] [PubMed]
  7. B. Sumpf, M. Zorn, M. Maiwald, R. Staske, J. Fricke, P. Ressel, G. Erbert, M. Weyers, and G. Tränkle, “5.6 W broad area lasers with a vertical far field angle of 31° emitting at 670 nm,” IEEE Photon. Technol. Lett. 20, 575-577 (2008). [CrossRef]
  8. R. L. McCreery, “Lasers for Raman spectroscopy,” in Raman Spectroscopy for Chemical Analysis,” Vol. 157 of Chemical Analysis (Wiley, 2000), Chap. 7, pp. 127-148.
  9. B. Schrader, Raman/Infrared Atlas of Organic Compounds (Wiley-CVH, 1989), A 3-11.

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