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

Patent · Tue Feb 04 04:00:00 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): A; US 5086432
• Application Number: PPN: US 7-705048
• OSTI ID: 5383174
• Country of Publication: United States
• Language: English

Related Subjects

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