IR heavy metal oxide glasses
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United States of America Patent
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Mar 31, 2015
Grant Date -
Feb 26, 2015
app pub date -
Jul 14, 2014
filing date -
Jan 18, 2013
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Abstract
An IR supercontinuum source for generating supercontinuum in the MIR or possibly LWIR spectral bands comprises a supercontinuum fiber formed from a heavy metal oxide host glass having low optical loss and high non-linearity over the spectral band that is stable, strong and chemically durable. The supercontinuum fiber is suitably a depressed inner clad fiber configured to support only single transverse spatial mode propagation of the pump signal and supercontinuum. The source suitably includes a tapered depressed inner clad fiber to couple the pump signal into the supercontinuum fiber. The source may be configured as an “all-fiber” source.
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