Laser diode pumped solid state laser

Patent · Tue Jul 05 04:00:00 EDT 1988

OSTI ID:6868385

Maer, T M; Keirstead, M S

A high efficiency, laser diode pumped, compact solid state laser is described comprising: a rare earth doped solid laser rod having a front end and a back end; a housing with means holding the laser rod in fixed position in the housing with its front end forward; a multi-spatial mode extended emitter laser diode secured in the housing behind and in optical alignment with the rod and having its near field beam pattern focused on the back end of the rod for pumping the rod, and having an output frequency which is absorbed by the rare earth to excite the laser rod the diode having an active emitting region which supports a plurality of spatial modes simultaneously; laser cavity means defining a laser cavity mounted in the housing with the rod in the cavity, the laser cavity means including output coupler means; means for matching inside the laser rod a region of absorption of a focused image of the laser diode with a lasing beam volume of the laser cavity.

• Assignee: Spectra-Physics, Inc., San Jose, CA
• Patent Number(s): US 4756003
• OSTI ID: 6868385
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CONTROL
DESIGN
DOPED MATERIALS
EFFICIENCY
ELEMENTS
LASER CAVITIES
LASERS
LIGHT EMITTING DIODES
MATERIALS
METALS
MODE CONTROL
OPTICAL PUMPING
PUMPING
RARE EARTHS
RODS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SOLID STATE LASERS