Hollow cylindrical solid state laser medium and a laser system u

Details Hollow cylindrical solid state laser medium and a laser system u Hollow cylindrical solid state laser medium and a laser system u

1986-05-01

1988-06-14

Davie, James W.

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

372 35, 372 41, 372 66, H01S 3045, H01S 3093

Patent

active

047517166

ABSTRACT:
A solid state laser medium for use in a solid state laser oscillator uses a hollow cylindrical solid state laser medium which is formed cylindrically in order to improve the cooling efficiency of the laser. The laser includes a pumping device for exciting the laser medium and an optical resonator that is arranged on both ends in the axial direction of the laser medium. The pumping device includes a plurality of flash lamps that are arranged on the outside, with respect to the central longitudinal access of the laser medium, of the outer surface of the hollow cylindrical laser medium and an outer reflector that is arranged so as to enclose the flash lamps and the laser medium, from the outside, with respect to the central longitudinal access of the laser medium, of the flash lamps, and a cylindrical inner reflector with outer diameter which is slightly smaller than the inner diameter of the laser medium, the inner reflector being inserted in the cavity of the laser medium. Cooling apparatus for cooling the hollow cylindrical solid state laser medium from both the outer longitudinal surface and the inner longitudinal surface of the hollow cylinder are also provided.

REFERENCES:
patent: 3383621 (1968-05-01), Luck et al.
patent: 3493888 (1970-03-01), Jackson
patent: 3725811 (1973-04-01), Murphy
patent: 3891945 (1975-06-01), Schlossberg et al.
patent: 4417341 (1983-11-01), Yamanaka et al.
Johnson; Coherent Oscillations from Tm.sup.3+, Ho.sup.3+, Yb.sup.3+ and Er.sup.3+ Ions in Yttrium Aluminum Garnet; 09/1965; pp. 127-129.

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