A second harmonic generation apparatus provides a polarization element transmitting only light polarized in an extra-ordinary axis direction on the proceeding path of a second harmonic emitted from a resonator. The light polarized in the extra-ordinary axis direction is transmitted to a beam splitter, and a part of the polarized light is fed back to a feedback circuit, so that the temperature of a non-linear birefringent crystalline element inside resonator can be stably controlled and the output second harmonic can be stably produced.
申请公布号
US5671232(A)
申请公布日期
1997.09.23
申请号
US19950520392
申请日期
1995.08.29
申请人
SAMSUNG ELECTRONICS CO., LTD.
发明人
LEE, HANG-WOO;LEE, SANG-HAK;CHEE, JOSEPH KILWHOAN;HWANG, YOUNG-MO;TSVETKOV, YURIJ V.;SEMENENKO, ALEXANDER V.;KURATEV, IVAN I.