Coherent light generators – Particular beam control device – Q-switch
Patent
1995-01-20
1996-09-17
Lee, John D.
Coherent light generators
Particular beam control device
Q-switch
372 25, 372 39, H01S 311
Patent
active
055576249
ABSTRACT:
A laser system includes a laser resonator cavity having a resonant axis and an Er:glass, Er:YAG, or other lasing element with an output of from about 1.4 to about 1.65 micrometers within the laser resonator cavity. A flash lamp optically pumps the lasing element to emit light. A Q-switch crystal lies along the resonant axis within the laser resonator cavity. The Q-switch crystal is formed of a host material having a concentration of U.sup.2+ ions therein, so as to be a saturable absorber of the light emitted by the lasing element. The Q-switch crystal is preferably a U.sup.2+ -doped fluoride such as U:CaF.sub.2, U:SrF.sub.2, or U:BaF.sub.2.
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patent: 4682336 (1987-07-01), Hendrix et al.
patent: 5422899 (1995-06-01), Freiberg et al.
Marvin J. Weber, "CRC Handbook of Laser Science and Technology," CRC Press, pp. 200-207 (1991). [No Month].
V. P. Mikhailov et al., "Picosecond Spectroscopy of Excited States in Transition-Metal-Ion Doped New Laser Materials," OSA Proceedings on Advanced Solid-State Lasers, vol. 15, pp. 320-324 (1993). [No Month].
Robert D. Stultz et al., "U.sup.4+ :SrF.sub.2 efficient saturable absorber Q switch for the 1.54 micrometer erbium:glass laser," Appl. Phys. Lett., vol. 64, No. 8, pp. 948-950 (21 Feb. 1994), and erratum sheet to be submitted.
Birnbaum Milton
Camargo Marly B.
Stultz Robert D.
Denson-Low Wanda K.
Hughes Aircraft Company
Lee John D.
Sales Michael W.
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