DocumentCode :
971054
Title :
Extended Continuous Tuning of a Single-Frequency Diode-Pumped Vertical-External-Cavity Surface-Emitting Laser at 2.3 \\mu m
Author :
Triki, Mariem ; Cermak, Peter ; Cerutti, Laurent ; Garnache, Arnaud ; Romanini, Daniele
Author_Institution :
Lab. de Spectrometrie Phys., Joseph Fourrier Univ., St. Martin d´´Heres
Volume :
20
Issue :
23
fYear :
2008
Firstpage :
1947
Lastpage :
1949
Abstract :
We report on single-frequency operation and wide mode-hop-free tuning range of a diode laser-pumped vertical-external-cavity surface-emitting semiconductor laser producing up to 3 mW around 2.3 mum. An optically stable external cavity of only 1.4 mm is formed using a concave dielectric mirror of 2-mm radius. The maximum continuous tuning is about 500 GHz wide, obtained by a synchronized ramp of external cavity length and of the gain medium temperature. We used this tunable source to record a direct absorption spectrum of methane, which is found to match well a simulated spectrum from the HITRAN (high-resolution transmission molecular absorption database http://www.cfa.harvard.edu/hitran) database.
Keywords :
infrared spectra; laser beams; laser cavity resonators; laser mirrors; laser stability; laser tuning; organic compounds; semiconductor lasers; surface emitting lasers; HITRAN database; absorption spectrum; concave dielectric mirror; extended continuous tuning; external cavity length; gain medium temperature; optically stable external cavity; radius 2 mm; semiconductor laser; single-frequency diode-pumped laser; vertical-external-cavity surface-emitting laser; wavelength 2.3 mum; wide mode-hop-free tuning; Infrared spectroscopy; laser tuning; semiconductor lasers;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2008.2005504
Filename :
4663528
Link To Document :
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