Coherent light generators – Particular component circuitry – Optical pumping
Patent
1987-12-22
1990-04-03
Laroche, Eugene R.
Coherent light generators
Particular component circuitry
Optical pumping
372 22, G02F 101, H01S 310
Patent
active
049135333
ABSTRACT:
A KTP crystal in a nonlinear optical device is heated to and operated at a temperature of at least 50.degree. C. and less than 350.degree. C., and more preferably about 90.degree. C. to about 200.degree. C., and most preferably to about 100.degree. C. to about 125.degree. C., to reduce drift and damage. The KTP crystal is placed in an oven or other heating device, which may be regulated or unregulated. The KTP may be cut at the room temperature phase matching angle and angle tuned for operation at the higher temperature, or the KTP may be cut at the correct angle for phase matching at the operating temperature.
REFERENCES:
patent: 4019159 (1977-04-01), Hon et al.
patent: 4739507 (1988-04-01), Byer et al.
Hung, A. H., "Generation of Tunable Picosecond VUV Radiation", Applied Physics Letters, vol. 25, No. 11, Dec. 1974, pp.653-654.
Jain et al., "Efficient Generation of Continuously Tunable Coherent Radiation in the 2460-2650.ANG. Spectral Ranges", IEEE Journal of Quantum Electronics, pp. 555-556, 9/1976.
Jones et al., "Milliwatt-Level 213 nm Source Based on a Repetitively Q-Switched CW Pumped Nd:YAG Laser", IEEE J of Quantum Elec., pp. 204-206, Apr. 1979.
Vanherzeele, "Thermal Lensing Measurment and Compensation in a Continuous-Wave Mode-Locked Nd:YLF Laser", Optic Letters, vol. 13, No. 5, May 1988, pp. 369-371.
Baer Thomas M.
Herbst Richard L.
Kafka James D.
Davis Paul
LaRoche Eugene R.
McCutcheon Nathan W.
Spectra-Physics Inc.
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