非共线准相位匹配周期极化RbTiOAsO4的增益带宽  

Gain Bandwidth of Periodically Poled RbTiOAsO_4 in Noncollinear Quasi-Phase Matching

作　　者：门艳彬[1,2,3] 王丽[1] 温芳[2,3] 张新平[1] 田金荣[1] 

机构地区：[1]北京工业大学应用数理学院,北京100124 [2]河北师范大学物理科学与信息工程学院,石家庄050016 [3]河北省新型薄膜材料实验室,石家庄050016

出　　处：《光子学报》2010年第1期12-15,共4页Acta Photonica Sinica

基　　金：全国高等学校博士点基金(200800050013);河北师范大学青年基金(L2007Q12)资助

摘　　要：研究了非共线准相位匹配过程中,周期极化RbTiOAsO_4晶体同时满足准相位匹配和群速匹配条件的非共线角和相应的极化周期随信号光波长的变化。分析了满足群速匹配条件时,非共线准相位匹配的调谐特性。数值模拟了增益带宽随非共线角、晶体温度和极化周期的变化关系。对比了群速匹配和最大增益带宽情况下,周期极化RbTiOAsO_4晶体增益带宽与晶体温度之间的关系。The dependence of noncollinear angle and the corresponding grating periods on signal wavelength for satisfying quasi phase-matching and group velocity matching simultaneously of periodically poled RbTiOAsO4 in noncollinear quasi phase-matched are carried out. The tuning characteristic of noncollinear interaction in group velocity matching situation is analyzed. The dependence of the gain bandwidth on the noncollinear angle, temperature, crystal angle and grating periods are simulated in detail. The dependence of gain bandwidth on crystal temperature for the biggest gain bandwidth and group velocity matching is compared in detail.

关 键 词：非共线准相位匹配 群速匹配 增益带宽 周期极化RbTiOAsO4 

分 类 号：TN248.1[电子电信—物理电子学]