Theoretical Study Of Dual-Wavelength Ppktp-Opo As A Source Of Dfg Thz-Wave
CONFERENCE DIGEST OF THE 2006 JOINT 31ST INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 14TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS(2006)
摘要
In this paper, we theoretically investigate the dual-wavelength periodically poled KTP optical parametric oscillator (PPKTP-OPO) operating near degeneracy. According to calculation, the dual-wavelength operation can be achieved by quasi-phase matching with a periodically poled structure. The tunable property of the grating period of the PPKTP crystal with temperature tuning determines that, quasi-CW or continuous tunable THz-wave generation can be achieved by difference frequency generation using a dual-wavelength PPKTP-OPO. Compared with a bulk KTP-OPO operating near degeneracy in theory, the gain property of PPKTP OPO is in better performance, contributing to a higher output power of THz generation.
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关键词
quasi phase matching
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