Fiber light source with multimode fiber coupler
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United States of America Patent
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Aug 19, 1997
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app pub date -
Jun 7, 1996
filing date -
Jun 7, 1996
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Abstract
In an optical fiber light source a section of multimode fiber is interposed between an energizing laser (e.g,, a diode laser) and a single mode fiber active medium. In a preferred embodiment the single mode fiber active medium is surrounded by a multimode cladding coupled to the multimode fiber. The source may serve as a pump laser for a fiber amplifier or as an amplified spontaneous emission source. Arrangements for coupling several energizing lasers to the active medium are also described.
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