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Proceedings Paper

Two-Photon Pumped Synchronously Mode-Locked Bulk GaAs Laser
Author(s): W. L. Cao; A. M. Vaucher; J. D. Ling; C. H. Lee
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Paper Abstract

Pulses 7 picoseconds or less in duration have been generated from a bulk GaAs crystal by a synchronous mode-locking technique. The GaAs crystal was optically pumped by two-photon absorption of the emission from a mode-locked Nd:glass laser. Two-photon absorption as the means of excitation increases the volume of the gain medium by increasing the pene-tration depth of the pump intensity, enabling generation of intra-cavity pulses with peak power in the megawatt range. Tuning of the wavelength of the GaAs emission is achieved by varying the temperature. A tuning range covering 840 nm to 885 nm has been observed over a temperature range from 97°K to 260°K. The intensity of the GaAs emission has also been observed to decrease as the temperature of the crystal is increased.

Paper Details

Date Published: 23 April 1982
PDF: 7 pages
Proc. SPIE 0322, Picosecond Lasers and Applications, (23 April 1982); doi: 10.1117/12.933202
Show Author Affiliations
W. L. Cao, University of Maryland (United States)
A. M. Vaucher, University of Maryland (United States)
J. D. Ling, University of Maryland (United States)
C. H. Lee, University of Maryland (United States)

Published in SPIE Proceedings Vol. 0322:
Picosecond Lasers and Applications
Lawrence S. Goldberg, Editor(s)

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