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Proceedings Paper

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

A dual-wavelength laser diode source suitable for shifted excitation Raman difference spectroscopy (SERDS) is presented. This monolithic device contains two ridge waveguide (RW) sections with wavelengths adjusted distributed Bragg reflection (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 0.5 nm, i.e. 10 cm-1. Separate RW sections can be individually addressed by injection current. An output power up to 110 mW was achieved. Raman experiments demonstrate the suitability of these devices for SERDS.

Paper Details

Date Published: 31 May 2013
PDF: 11 pages
Proc. SPIE 8718, Advanced Environmental, Chemical, and Biological Sensing Technologies X, 871808 (31 May 2013); doi: 10.1117/12.2017851
Show Author Affiliations
M. Maiwald, Ferdinand-Braun-Institut (Germany)
J. Fricke, Ferdinand-Braun-Institut (Germany)
A. Ginolas, Ferdinand-Braun-Institut (Germany)
J. Pohl, Ferdinand-Braun-Institut (Germany)
B. Sumpf, Ferdinand-Braun-Institut (Germany)
G. Erbert, Ferdinand-Braun-Institut (Germany)
G. Tränkle, Ferdinand-Braun-Institut (Germany)


Published in SPIE Proceedings Vol. 8718:
Advanced Environmental, Chemical, and Biological Sensing Technologies X
Tuan Vo-Dinh; Robert A. Lieberman; Günter G. Gauglitz, Editor(s)

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