Optical: systems and elements – Optical frequency converter
Patent
1991-12-27
1993-10-05
Healy, Brian
Optical: systems and elements
Optical frequency converter
359328, 372 21, 372 22, H01S 310, H03F 700
Patent
active
052510590
ABSTRACT:
Disclosed is a frequency conversion device fabricated in a phase matching angle in which laser damage scarcely occurs, in order to increase the damage threshold value of the device, thus providing a greater harmonic output than a conventional device. This device also has an improved reliability. The angle where the laser damage threshold value is large is measured with light permitted to enter along X, Y and Z axes of the crystal in vertical and horizontal polarization, so that the frequency conversion device can be fabricated in the phase matching angle in which the laser threshold value becomes maximum.
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Healy Brian
NEC Corporation
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