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Proceedings Paper

Shifted excitation Raman difference spectroscopy using a dual-wavelength DBR diode laser at 671 nm
Author(s): M. Maiwald; J. Fricke; A. Ginolas; J. Pohl; B. Sumpf; G. Erbert; G. Tränkle
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Paper Abstract

Shifted excitation Raman difference spectroscopy (SERDS) using a dual-wavelength laser diode laser as excitation light source at 671 nm is presented. This device has a size of 3 mm x 0.5 mm and contains two laser cavities with wavelengths adjusted by distributed Bragg reflector (DBR) gratings as rear side mirrors. An integrated Y-branch coupler guides the emission into a common output aperture. The two wavelengths are centered at 671 nm with a well-defined spectral spacing of about 10 cm-1. An output power up to 100 mW is achieved. Raman experiments using polystyrene as test sample and ambient light to disturb the Raman signals demonstrate the suitability of such light source for SERDS.

Paper Details

Date Published: 27 February 2014
PDF: 8 pages
Proc. SPIE 8935, Advanced Biomedical and Clinical Diagnostic Systems XII, 89350M (27 February 2014); doi: 10.1117/12.2035489
Show Author Affiliations
M. Maiwald, Ferdinand-Braun-Institut (Germany)
Leibniz-Institut für Höchstfrequenztechnik (Germany)
J. Fricke, Ferdinand-Braun-Institut (Germany)
Leibniz-Institut für Höchstfrequenztechnik (Germany)
A. Ginolas, Ferdinand-Braun-Institut (Germany)
Leibniz-Institut für Höchstfrequenztechnik (Germany)
J. Pohl, Ferdinand-Braun-Institut (Germany)
Leibniz-Institut für Höchstfrequenztechnik (Germany)
B. Sumpf, Ferdinand-Braun-Institut (Germany)
Leibniz-Institut für Höchstfrequenztechnik (Germany)
G. Erbert, Ferdinand-Braun-Institut (Germany)
Leibniz-Institut für Höchstfrequenztechnik (Germany)
G. Tränkle, Ferdinand-Braun-Institut (Germany)
Leibniz-Institut für Höchstfrequenztechnik (Germany)


Published in SPIE Proceedings Vol. 8935:
Advanced Biomedical and Clinical Diagnostic Systems XII
Tuan Vo-Dinh; Anita Mahadevan-Jansen; Warren S. Grundfest, Editor(s)

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