Widely Tunable GaSb-Based External Cavity Diode Laser Emitting Around 2.3 mum

We report on a widely tunable external cavity GaSb-based diode laser (ECL) in Littrow-configuration. The low (44deg full-width at half-maximum) fast axis beam divergence of the quantum-well diode laser employed allowed an efficient coupling to the external cavity, which resulted in a wide tuning ran...

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Bibliographic Details
Published in:IEEE photonics technology letters 2006-09, Vol.18 (18), p.1913-1915
Main Authors: Geerlings, E., Rattunde, M., Schmitz, J., Kaufel, G., Zappe, H., Wagner, J.
Format: Article
Language:English
Subjects:
Diode lasers
External cavity
fiber coupled
Gas lasers
GaSb
infrared diode laser
Laser beams
Laser tuning
Optical coupling
Optical design
Optical fibers
Optical waveguides
Tunable circuits and devices
tuning range
Waveguide lasers
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Summary:We report on a widely tunable external cavity GaSb-based diode laser (ECL) in Littrow-configuration. The low (44deg full-width at half-maximum) fast axis beam divergence of the quantum-well diode laser employed allowed an efficient coupling to the external cavity, which resulted in a wide tuning range of 177 nm around the central emission wavelength of 2.30 mum. The maximum output power of the fiber coupled ECL system varied only moderately between 16.5 mW at 2.23 mum and 9 mW at the long-wavelength limit at 2.39 mum
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.881658