| 摘要 |
<P>PROBLEM TO BE SOLVED: To attain a light with high strength and low temporal coherency. <P>SOLUTION: A ferroelectric crystal 100 comprises plural polarization inversion regions formed periodically on at least part of a region from a first end face to a second end face. A first optical system 310 emits a low coherence light from the second end face by entering a conversion light to the first end face of the ferroelectric crystal 100. A second optical system 320 enters a first modulation light and a second modulation light that are divided from a same light so as to interfere with each other in the polarization inversion region, in such a state that the first and second modulation lights have an equal optical path length after the light dividing. <P>COPYRIGHT: (C)2012,JPO&INPIT |
