Self frequency double nd-doped: YCOB LASER
AssigneeUniversity of Central Florida
InventorsJason Eichenholz, Bruce H. T. Chai, Qing Ye, Martin Richardson, Dennis Allen Hammons
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Abstract
Neodymium-doped yttrium calcium oxyborate (Nd:YCOB) is the single active gain element for a solid-state laser device capable of achieving both lasing and self-frequency doubling optical effects. A pumping source for optically pumping Nd:YCOB can generate a laser light output of approximately 400 mW at approximately 1060 nm wavelength and a self-frequency doubled output of approximately 60 mW at approximately 530 nm wavelength. Thus, a laser device can be designed that is compact, less expensive and a high-powered source of visible, green laser light.
Claims36
A solid-state laser device wherein the single active gain element is trivalent neodymium-doped yttrium calcium oxyborate crystal.
A solid-state laser device with optical components comprising:
- a) one single element combining the active gain medium and the frequency doubler;
- and
- b) a pumping source for optically pumping said single element of said device to generate a laser light output of approximately 400 mW at approximately 1060 nm wavelength and a self-frequency doubled output of approximately 60 mW at approximately 530 nm wavelength, said pumping source being selected from one of a coherent pumping source and an incoherent pumping source.
A method for producing a fundamental beam and self-frequency doubling said fundamental beam to produce green laser light, comprising the steps of:
- (a) emitting optical radiation from a pump source selected from one of a coherent pumping source and an incoherent pumping source;
- (b) pumping an active gain medium in a laser cavity with the optical radiation of step (a), wherein the gain medium consists of trivalent neodymium-doped yttrium calcium oxyborate crystal, NdxYCa4O(BO3)3 where (x=0.02-0.10);
- and
- (c) generating a fundamental beam that is self-frequency doubled to produce green laser light.
Dependencies are inferred from the claim text.