Widely Tunable Micro-Mechanical External-Cavity Diode Laser Emitting Around 2.1 [Formula Omitted]m

A widely tunable (Deltalambda/lambda = 7%) micro-mechanical external cavity GaSb-based diode laser (muECL) emitting around 2.1 mum is presented. A micro-machined grating with a rectangular grating profile, which can be tilted electrostatically, is employed as wavelength selective element within the...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2008-11, Vol.44 (11), p.1071-1075
Main Authors: Geerlings, E, Rattunde, M, Schmitz, J, Kaufel, G, Wagner, J, Blasi, B, Kallweit, D, Zappe, H
Format: Article
Language:English
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Summary:A widely tunable (Deltalambda/lambda = 7%) micro-mechanical external cavity GaSb-based diode laser (muECL) emitting around 2.1 mum is presented. A micro-machined grating with a rectangular grating profile, which can be tilted electrostatically, is employed as wavelength selective element within the external cavity using a Littrow configuration. An optimized grating profile leads to a high diffraction efficiency in the -1st diffraction order and therefore to a broad tuning range of 152 nm. The maximum output power of the fiber coupled muECL system varied only moderately between 22 and 10 mW across the tuning range.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2008.2001927