Coherent light generators – Particular beam control device – Nonlinear device
Patent
1991-05-20
1993-01-19
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Nonlinear device
372106, 372 20, 372 98, 372 23, H01S 310
Patent
active
051812118
ABSTRACT:
An eye-safe laser operating at high efficiency, pulse repetition rate and power output is described. The laser comprises a diode-array pumped laser having a pumping wavelength range which produces a polarized output beam. The output beam passes through a nonlinear tunable parametric converter crystal having X, Y, and Z principal axes. Noncritical phase matching is produced in said laser by phase matching for a beam propagation parallel to a principal axis which results in a high efficiency of laser operation. The nonlinear tunable parametric converter crystal converts the wavelength of an otherwise unsafe laser beam output to one that is harmlessly absorbed by the human eye.
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Burnham, Stolzenberger, Pinto; "Infrared Optical Parametric Oscillator in Potassium Titanyl Phosphate"; Jan. 1989; IEEE Photonics Technology Letters vol. 1, No. 1.
Burnham Ralph L.
Kasinski Jeffrey J.
Marshall Larry R.
Fibertek, Inc.
Jr. Leon Scott
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