中国激光, 1987, 14 (4): 220, 网络出版: 2012-08-10
掺铈(Ce)铌酸锶钡(BaxSr1-xNb2O6)单晶中双光束耦合、放大的研究
Investigation of two laser beam coupling and amplification in Ce-doped SBN single crystals
摘要
报道从同一激光器出射的两束光在Ce-SBN单晶中相交耦合后一波被另一波放大的实验,并进行了初步的理论分析。从耦合强度对光束在晶体中交角的关系算出Ce-SBN单晶中截流子浓度为4.5×1016/cm3(室温下);从光耦合时能量的流动方向确定载流子带电的符号为正。比较了不同偏振态、不同波长、不同掺杂量及不同光强比时的耦合情况。
Abstract
The experiment of a laser beam amplified by the other after both beams crossing a Ce-doped (0.1Wt%) strontium barium niobate (BaxSr1-xNbaO6 or SEN, x=0.48) crystal is reported and preliminary theoretical analysis is given. The density of mobile charges in Ce-SBN is calculated to be 4.5xl016pm-8 (at ambient temperature). The sign of mobile charges determined from the energy flow direction is positive. Couplings at different polarizations, different wavelengths and different doping amounts are compared.
徐怀方, 金元望, 何雪梅, 唐元汾, 张雁行. 掺铈(Ce)铌酸锶钡(BaxSr1-xNb2O6)单晶中双光束耦合、放大的研究[J]. 中国激光, 1987, 14(4): 220. Xu Huaifang, Jin Yuanwang, He Xuemei, Tang Yuanfen, Zhang Yanxing. Investigation of two laser beam coupling and amplification in Ce-doped SBN single crystals[J]. Chinese Journal of Lasers, 1987, 14(4): 220.
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