Stabilized cavity-dumped nd:yag laser

Details Stabilized cavity-dumped nd:yag laser Stabilized cavity-dumped nd:yag laser

1976-04-19

1977-08-23

Lynch, Michael J.

Oscillators

Molecular or particle resonant type

331 945C, 331 945N, 331 945Q, H01S 313

Patent

active

040443167

ABSTRACT:
In cavity dumped state lasers the relaxation oscillations caused by cavity dumping are stabilized and damped out by placing a non-linear second-harmonic generation crystal inside the optical cavity of the laser and phase-matching it to produce a doubled frequency component of approximately 0.1% that of the circulating power. The degree of damping depends on the conversion percentage, which may be varied by temperature controlling the frequency doubling crystal. A conventional antireflection coating is placed on the crystal to minimize losses.

REFERENCES:
patent: 3804490 (1974-04-01), Montgomery et al.
patent: 3947780 (1976-03-01), Rice et al.
D. Cheng, "Instability of Cavity-Dumped YAG Laser Due To Time-Varying Reflections", IEEE J. of Quantum Electronics, vol. QE-9, No. 6, June 1973.
C. J. Kennedy et al., "Stability of an Intercavity Frequency-Doubled Nd:YAG Laser", IEE J. of Quantum Electronics, vol. QE-10, No. 8, Aug. 1974.

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