Optical fiber and laser oscillator using same
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United States of America Patent
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Aug 23, 2016
Grant Date -
Feb 11, 2016
app pub date -
Mar 20, 2014
filing date -
Mar 28, 2013
priority date (Note) -
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Abstract
An optical fiber includes a first optical fiber body, a second optical fiber body and a first end cap. The first optical fiber body includes a first core and a first cladding. The second optical fiber body includes a second core and a second cladding, and is joined at a first end surface thereof to a first end surface of the first optical fiber body. The first end cap has light permeability and is joined to a second end surface of the second optical fiber body. The first core is doped with a laser medium. A mass content of the laser medium in the second core is lower than that of the laser medium in the first core.
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