Coherent light generators – Particular active media – Insulating crystal
Patent
1997-04-17
1999-06-22
Bovernick, Rodney
Coherent light generators
Particular active media
Insulating crystal
H01J 316
Patent
active
059149752
ABSTRACT:
The present invention provides a Yb-doped crystal for a solid state laser, wherein a main active element of the Yb-doped crystal comprises Yb.sup.3 +. The Yb-doped crystal for a solid state laser is prepared by increasing a ratio of Yb.sup.3 + to Yb.sup.2 + in a Yb-doped material by a heat treatment to the Yb-doped material in an oxidizing atmosphere, and carrying out a crystal growth of the Yb-doped material.
REFERENCES:
A. R. Reinberg, et al., "GaAs: Si LED Pumped Yb-Doped YAG Laser", Jul. 1971, pp. 11-13, Applied Physics Letters, vol. 19, No. 1.
P. Lacovara, et al., "Room-temperature diode-pumped Yb:YAG laser", Jul. 1991, pp. 1089-1091, Optics Letters, vol. 16, No. 14.
E. Mix, et al., "Efficient cw-Laser Operation of Yb-doped Fluoride Phosphate Glass at Room Temperature", pp. 230-232, Technical Digest 1995 No Month.
D. S. Sumida, et al., Spectroscopy and diode-pumped lasing of Yb.sup.3 +-doped Lu.sub.3 A1.sub.5 O.sub.12 (Yb:LuAG), pp. 224-226, Technical Digest 1995.
L. D. DeLoach, et al., "Laser and Spectroscopic Properties of Yb-Doped apatite Crystals", 1993, pp. 188-191, Optical Society of America, vol. 15.
Bovernick Rodney
NEC Corporation
Wise Robert E.
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