Narrow band incoherent optical carrier generator

Details Narrow band incoherent optical carrier generator Narrow band incoherent optical carrier generator

1991-07-18

1993-03-02

Scott, Jr., Leon

Coherent light generators

Optical fiber laser

372 19, 372102, 372 70, 359341, H01S 330

Patent

active

051915863

ABSTRACT:
A narrow bandwidth incoherent optical source is provided. A superluminescent source includes a gain medium having an input end and an output end. The input end of the gain medium 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. The gain medium can comprise a doped fiber, such as an Erbium doped fiber. An optical isolator prevents the superluminescent source from lasing. By providing a plurality of reflectors operating in different bands, the superluminescent source can generate a plurality of optical carriers.

REFERENCES:
patent: 4938556 (1990-07-01), Digonnet et al.
patent: 4962995 (1990-10-01), Andrews et al.
patent: 5048913 (1991-09-01), Glenn et al.
patent: 5050949 (1991-09-01), DiGiovanni et al.
patent: 5134620 (1992-07-01), Huber
patent: 5140456 (1992-08-01), Huber

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