Narrow band incoherent optical carrier generator
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United States of America Patent
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Mar 2, 1993
Grant Date -
N/A
app pub date -
Jul 18, 1991
filing date -
Jul 18, 1991
priority date (Note) -
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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.
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