ND-YAG laser
This patent describes a high efficiency, diode pumped array, compact neodymium-YAG laser, comprising: a neodymium-YAG laser rod having a front end and a back end, a housing with means holding the neodymium-YAG rod in fixed position in the housing with its front end forward; a laser diode array for pumping the neodymium-YAG rod, having an output frequency sufficiently matched to the rod to pump the rod, secured in the housing behind and in optical alignment with the rod; output coupler means including a mirrored surface forming a front end of a laser cavity; a rear mirror means forming a back end of the laser cavity, with the neodymium-YAG rod within the cavity; a frequency doubler within the laser cavity, positioned to receive the output beam of the laser rod and to halve its wavelength, doubling its frequency; and polarization control means for adjusting and maintaining the polarization of the laser beam to a polarization which optimized frequency doubling of the laser beam by the frequency doubler.
- Assignee:
- Spectra-Physics, Inc., San Jose, CA
- Patent Number(s):
- US 4653056
- OSTI ID:
- 6535604
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420300* -- Engineering-- Lasers-- (-1989)
ALIGNMENT
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CONTROL
DESIGN
EFFICIENCY
ELECTRICAL PUMPING
FERRITE GARNETS
FREQUENCY CONTROL
FREQUENCY CONVERTERS
LASER CAVITIES
LASER MIRRORS
LASERS
MINERALS
MIRRORS
NEODYMIUM LASERS
OPERATION
OPTICS
OXIDES
OXYGEN COMPOUNDS
POLARIZATION
PUMPING
RODS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SILICATE MINERALS
SOLID STATE LASERS
TRANSITION ELEMENT COMPOUNDS
WAVELENGTHS
YTTRIUM COMPOUNDS