High-power mode-selective optical fiber laser

Details High-power mode-selective optical fiber laser High-power mode-selective optical fiber laser

1991-01-31

1992-06-09

Epps, Georgia Y.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

372 6, 385 15, 385141, G02B 622

Patent

active

051214601

ABSTRACT:
An optical fiber includes a multimode primary core having an index or refraction N.sub.1 and doped with a material providing optical gain; the cladding surrounding the core having an index of refraction N.sub.2 ; and a secondary core doped with an absorbent material for providing optical loss in unwanted modes.

REFERENCES:
patent: 4815079 (1989-03-01), Snitzer et al.
patent: 4818047 (1989-04-01), Takuma et al.
patent: 4877306 (1989-10-01), Kar
patent: 4896942 (1990-01-01), Onstott et al.
patent: 4923279 (1990-05-01), Ainslie et al.

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