DocumentCode :
989084
Title :
Widely Tunable Micro-Mechanical External-Cavity Diode Laser Emitting Around 2.1 
m
Author :
Geerlings, E. ; Rattunde, M. ; Schmitz, J. ; Kaufel, G. ; Wagner, J. ; Bläsi, B. ; Kallweit, D. ; Zappe, H.
Author_Institution :
Fraunhofer Inst. for Appl. Solid State Phys., Freiburg
Volume :
44
Issue :
11
fYear :
2008
Firstpage :
1071
Lastpage :
1075
Abstract :
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.
Keywords :
diffraction gratings; laser tuning; microcavity lasers; optical fibre couplers; semiconductor lasers; GaSb; Littrow configuration; diffraction efficiency; external-cavity diode laser; laser tuning; micro-machined grating; muECL system; power 10 mW to 22 mW; wavelength 2.1 mum; wavelength selective element; Diffraction gratings; Diode lasers; Gas lasers; Laser beams; Laser modes; Laser tuning; Optical design; Optical waveguides; Power generation; Tunable circuits and devices; External cavity; GaSb; fiber coupled; infrared diode laser; micro-machined grating; tuning range;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.2008.2001927
Filename :
4674642
Link To Document :
