Coherent light generators – Particular operating compensation means
Patent
1991-06-10
1993-04-20
Scott, Jr., Leon
Coherent light generators
Particular operating compensation means
372 31, 372 38, 372 25, 372 10, H01S 300
Patent
active
052048675
ABSTRACT:
A method or apparatus for controlling the output pulse of a Q-switched laser. The intensity of laser light within the resonator of a Q-switch laser is sensed. A reference pulse related to a desired laser output pulse shape is compared with the sensed intensity. A variation signal corresponding to differences between the sensed light intensity and the reference pulse is fed to a Pockels cell or Q-switch within the resonator. The Q-switch responds to the variation signal by altering the resonator laser light polarization to maintain the Q-switch laser's output pulse in the desired shape. The reference pulse may be dynamically altered to change the shape of the output pulse.
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Schmid, "Pulse Stretching in a Q-Switched Nd:YAG Laser", IEEE Journal of Quantum Electronics, vol. QE-16, No. 7, Jul. 1980, pp. 790-794.
Jr. Leon Scott
Laser Photonics, Inc.
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