Grating feedback in a 810 nm broad-area diode laser |
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Authors: | A C Fey-den Boer K A H van Leeuwen H C W Beijerinck C Fort F S Pavone |
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Institution: | (1) Physics Department, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;(2) European Institute for Non-linear Spectroscopy, Largo E. Fermi 2, I-50125 Florence, Italy |
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Abstract: | Narrow linewidth, single spectral mode operation has been obtained in a high power, 810 nm broad-area diode laser in an extended cavity configuration with a grating as external reflector (grating feedback). For stable operation it was necessary to misalign the feedback slightly in the plane of the laser junction. Characteristics of the thus obtained laser system are a linewidth below 5 MHz, an output intensity of about 50% of the free running power, a large-scale tuning range of 15 nm and continuous scanning over 4 GHz. In the spatial domain, the laser remains multimode and astigmatic. To show the practical applicability of this system, saturated absorption of a krypton line is demonstrated. |
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Keywords: | 42 60B 42 60D 42 65 |
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