Optical fiber lasers and amplifiers

Details Optical fiber lasers and amplifiers Optical fiber lasers and amplifiers

1987-12-17

1989-03-21

Sikes, William L.

Coherent light generators

Optical fiber laser

350 9633, G01S 330

Patent

active

048150797

ABSTRACT:
Apparatus for coupling radiation into a single-mode core of an optical fiber laser has a single-mode core disposed within a relatively large, multimode cladding at a location which is displaced from the center of the cross-section of the cladding. The cladding is surrounded by a further layer to prevent radiation from propagating out of the cladding. In addition, the apparatus preferably has slight bends to enhance the coupling of radiation from the cladding into the single-mode core. A further embodiment has a single-mode fiber laser disposed in a relatively large, multimode, slab cladding which, in turn, is surrounded by another cladding to prevent radiation from propagating out of the large cladding.

REFERENCES:
patent: 3729690 (1973-04-01), Snitzer
patent: 4125768 (1978-11-01), Jackson et al.
patent: 4546476 (1985-10-01), Shaw et al.
patent: 4630889 (1986-12-01), Hicks, Jr.
patent: 4709986 (1987-12-01), Hicks, Jr.

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