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Optical harmonic generating device for generating harmonic wave from fundamental wave and shorter wavelength laser generating apparatus in which fundamental wave of laser is converted to harmonic wave with the device
Optical harmonic generating device for generating harmonic wave from fundamental wave and shorter wavelength laser generating apparatus in which fundamental wave of laser is converted to harmonic wave with the device
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机译：用于从基波产生谐波的光谐波产生装置以及将装置的激光的基波转换成谐波的短波长激光产生装置
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摘要
An optical harmonic generating device is provided with reverse polarization layers which are made of non-linear optical crystal polarized in a lower direction and are periodically arranged at regular intervals, a non-reverse polarization layer which is made of the non- linear optical crystal polarized in the upper direction and is arrange to surround the reverse polarization layers, a wave guide penetrating through alternate rows of the reverse and non-reverse polarization layers, a first electrode arranged on the wave guide, and second electrodes arranged on both ends of the alternate rows. Electric field is induced between the first and second electrodes through the wave guide to change a refractive index of the reverse and non-reverse polarization layers. A part of the fundamental wave passes through the alternate rows to be converted to the harmonic wave, and another part of the fundamental wave passes through the non-reverse polarization layer positioned under the reverse polarization layers to change the refractive index for the fundamental wave.
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