Studying tunability of some NIR semiconductor lasers by external cavity setup

Conference paper (2017)

Authors

M. A. Bani University of Kashan

Majid Nazeri University of Kashan

H. Abbasi University of Basel

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External organisation

Semiconductor laser External cavity Littman configuration Littrow configuration Near IR Tunability

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Published Date

2017

Language

English

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Abstract

In this paper, tunability of three near-infrared semiconductor lasers which typically lase at 808 nm, 892 nm and 980 nm is studied. Both Littrow (wavelength dependent beam direction setup) and Littman (wavelength independent beam direction setup) configurations have been used. The wavelength and the power of the output beam of the laser have been measured. In all three cases, Littrow configuration shows a little better tuning range. In both Littrow and Littman configurations the wavelengths near the main wavelength of the laser had more power. The highest achieved power of these lasers in the Littrow setup was more than that of the Littman setup.