Superluminescent optical source

Details Superluminescent optical source Superluminescent optical source

1992-07-27

1993-12-07

Scott, Jr., Leon

Coherent light generators

Optical fiber laser

372 41, 372102, 372703, 372 20, H01S 330

Patent

active

052689107

ABSTRACT:
An optical source particularly suitable as a pump is provided. A gain medium such as a thulium doped fiber has an input end and an output end. The input end is optically coupled to a reflector to cause spontaneous emissions within a predetermined band exiting the input of the gain medium to be reflected back into the medium. Spontaneous emissions outside of the predetermined band are lost. An optical isolator can be provided to prevent the optical source from lasing, resulting in a moderate bandwidth optical pump. A cascaded embodiment is disclosed, in which the gain medium is followed by an optical amplifier for increased power.

REFERENCES:
patent: 4794615 (1988-12-01), Berger
patent: 4923279 (1990-05-01), Ainslie et al.
patent: 5005115 (1991-04-01), Desurvire et al.
patent: 5134620 (1972-07-01), Huber
patent: 5140456 (1992-08-01), Huber
patent: 5159601 (1992-10-01), Huber
Patent Abstracts of Japan, vol. 13, No. 453, Publication No. JP1175787, published Oct. 11, 1989.
R. Allen, et al., "Cascade Thulium Fiber Laser," Conference on Lasers and Electro-Optics, 1992 Technical Digest Series, vol. 12, Conference Edition, Optical Society of America, May 10-15, 1992, Paper No CThQ4, pp. 542-543.

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