Crystal for optical conversion
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United States of America Patent
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Dec 11, 2012
Grant Date -
Feb 3, 2011
app pub date -
Mar 25, 2009
filing date -
Mar 25, 2008
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Abstract
An efficient broadband crystal for wavelength conversion, the crystal being a quasi-phase matched non-linear crystal, having an aperiodic poled structure, each period being tuned, and wherein said tuning varies adiabatically along a length of said crystal from a first end wherein said tuning is a strong negative mismatch to a second end wherein said tuning is a strong positive mismatch or vice versa. The crystal is able to provide efficient wavelength conversion over a range of frequencies.
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