High efficiency solid state raman laser system

Details High efficiency solid state raman laser system High efficiency solid state raman laser system

1996-09-11

1998-08-18

Lee, John D.

Coherent light generators

Raman laser

359327, 372 20, 372 21, 372 29, H01S 330

Patent

active

057967610

ABSTRACT:
A high efficiency solid state Raman laser system for shifting the frequency of an input beam emitted by a laser pumping system is described. The laser pumping system suppresses relaxation oscillations in the input beam and emits a constant power, mode-locked pulse train. A solid Raman medium is disposed inside a Raman resonator cavity to shift the frequency of the input beam to produce a Raman beam. The frequency of the Raman beam is finely tuned in the resonator cavity to eliminate high order Raman shifted wavelengths. The polarization of the Raman beam is selected using a polarizing element disposed in the resonator cavity. The Raman beam frequency is shifted using a non-linear medium inside the resonator cavity. The non-linear medium is preferably a frequency doubler. The Raman laser system is particularly suitable for producing high-quality yellow light for guide star applications.

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R.P. Johnson et al., paper FP2, Technical Digest, Conference on Lasers and Electro-optics, CLEO 87, "Simple Method for Electronic Feedback Stabilization of an Actively Mode-locked and Q-Switched Nd:YLF Laser," May 1987, pp. 358-359.

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