Resonantly pumped, erbium-doped, 2. 8 micron solid state laser with high slope efficiency

Patent · Tue Feb 04 00:00:00 EST 1992

OSTI ID:5383174

Esterowitz, L; Stoneman, R C

This patent describes a laser system. It comprises: a crystal having a host material doped with erbium; a laser cavity defined by first and second reflective elements at opposing ends of the crystal to form a reflective path therebetween; and resonant pumping means for directly pumping the {sup 4}I{sub 11/2} upper laser state of the erbium with a pump beam at a preselected wavelength to cause the erbium-doped crystal to produce a laser emission corresponding to the {sup 4}I{sub 11/2}-{yields} {sup 4}I{sub 13/2} laser transition having a wavelength of substantial 2.8 microns; one of the first and second reflective elements outputting a portion of the laser emission at substantially 2.8 microns.

• Assignee: Secretary of the Navy, Washington, DC (United States)
• Patent Number(s): US 5086432; A
• Application Number: PPN: US 7-705048
• OSTI ID: 5383174
• Resource Relation: Patent File Date: 23 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
SOLID STATE LASERS
CRYSTAL DOPING
FABRICATION
CRYSTAL LATTICES
ERBIUM ADDITIONS
LASER CAVITIES
LASER MATERIALS
QUANTUM EFFICIENCY
ALLOYS
CRYSTAL STRUCTURE
EFFICIENCY
ERBIUM ALLOYS
LASERS
MATERIALS
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
426002* - Engineering- Lasers & Masers- (1990-)