Solid-state laser device which is pumped by light output from la

Details Solid-state laser device which is pumped by light output from la Solid-state laser device which is pumped by light output from la

1997-01-22

1999-01-12

Lee, John D.

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

372 71, H01S 3091

Patent

active

058598685

ABSTRACT:
The diameter of the spot of the light output from a laser diode is reduced through a coupled optical system so as to be smaller than the incidence aperture of a tapered total reflection rod. The light output from the coupling optics is focused into the incidence aperture of the total reflection rod. The total reflection rod is equipped with a smaller emission aperture than the diameter of the incidence aperture and further reduces the spot of the focused light. That is, the light passing through the total reflection rod is reduced to a smaller diameter while being totally reflected internally. A laser medium is in optical contact with the emission aperture of the total reflection rod and is pumped by the light which is output from the total reflection rod.

REFERENCES:
patent: 4553238 (1985-11-01), Shaw et al.
patent: 4763975 (1988-08-01), Scifres et al.
patent: 5022043 (1991-06-01), Jacobs
patent: 5323414 (1994-06-01), Baird et al.
patent: 5572541 (1996-11-01), Suni
patent: 5689522 (1997-11-01), Beach
Kaneda et al., "7.6 W of continuous-wave radiation in a TEM.sub.00 mode from a laser-diode end-pumped Nd:YAG Laser", Optics Letters, vol. 17, No. 14, Jul. 15, 1992, pp. 1003-1004.
D.C. Shannon et al., "High-power Nd:YAG laser end pumped by a cw, 10 mm .times. 1 .mu.m aperture, 10-W laser-diode bar", Optics Letters, vol. 16, No. 5, Mar. 1, 1991, p. 313.

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