Efficient laser configuration

Details Efficient laser configuration Efficient laser configuration

1991-10-28

1994-07-12

Davie, James W.

Coherent light generators

Particular temperature control

Heat sink

H01S 3045

Patent

active

053295390

ABSTRACT:
Compact solid state laser apparatus that includes a laser diode pump, beam forming optics, a laser gain medium and optical resonator, a photodetector to vary the power supplied to the laser diode pump to suppress relaxation oscillations that might otherwise appear in the laser gain medium output light beam, an optical isolator and laser output optics. Each of the optical components has an independently activatable heater to allow optical alignment of that component. Each of the laser diode pump and laser gain medium has an independently activatable thermoelectric cooler to allow optical alignment (laser gain medium only) and to provide thermal tuning of the output wavelength of that device. An optical platform, which is thermally conductive, electrically non-conductive and has low thermal expansion, supports the other components, provides a substrate for electrical traces that provide power for operation of the apparatus and contains the heaters for the optical components.

REFERENCES:
patent: 4749842 (1988-06-01), Kane et al.
patent: 4797896 (1989-01-01), Kane
patent: 4827485 (1989-05-01), Scerbak et al.
patent: 4829532 (1989-05-01), Kane
patent: 4947402 (1989-08-01), Kane
Thomas J. Kane, "Intensity Noise in Diode-Pumped Single-Frequency Nd:YAG Lasers and its Control by Electronic Feedback", IEEE Photonics Technology Letters, vol. 2, No. 4 Apr. 1990, pp. 244-245.

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