The influence of Nd:MgO:LiNbO_(3) composition on the optical quality and resistance to photorefraction has been studied.Nd:MgO:LiNbO3(1molNd_(2)O_(3),7.5mol%MgO)crystal has been found to have enhanced resitance to pho...The influence of Nd:MgO:LiNbO_(3) composition on the optical quality and resistance to photorefraction has been studied.Nd:MgO:LiNbO3(1molNd_(2)O_(3),7.5mol%MgO)crystal has been found to have enhanced resitance to photorc-fraction,lower phase matching temperature and good optical quality.This crystal is promising material for self-frequency-doubled and self-Q-switched laser devices.展开更多
The Raman Spectra of LiNbO3:MgO(6.7mol%) at both lowtemperature and room temperature were studied. The results showed that the crystal structure had changed little after doping Mg++. At room temperature the lattice di...The Raman Spectra of LiNbO3:MgO(6.7mol%) at both lowtemperature and room temperature were studied. The results showed that the crystal structure had changed little after doping Mg++. At room temperature the lattice distorted a litlte, which caused the appearance of couping phenomenon of some individual scattering peaks. As the temperature decreased, the coupling reduced gradually.展开更多
A continuous-wave(CW)π-polarized 1084 nm laser based on Nd:MgO:LiNbO_(3)under 888 nm thermally boosted pumping is reported.According to the absorption spectrum and energy level structure of Nd:MgO:LiNbO_(3),the 888 n...A continuous-wave(CW)π-polarized 1084 nm laser based on Nd:MgO:LiNbO_(3)under 888 nm thermally boosted pumping is reported.According to the absorption spectrum and energy level structure of Nd:MgO:LiNbO_(3),the 888 nm laser diode(LD)is used for thermally boosted pumping.This pumping method eliminates the quantum defect caused by the nonradiative transition in Nd:MgO:LiNbO_(3)under the traditional 813 nm pumping and effectively improves the serious thermal effect of the crystal.The unmatched polarized 1093 nm laser is completely suppressed,and theπ-polarized laser output of1084 nm in the whole pump range is realized by the 888 nm thermally boosted pumping.In the present work,we achieved the CWπ-polarized 1084 nm laser with a maximum output power of 7.53 W and a slope efficiency of about 46.1%.展开更多
文摘The influence of Nd:MgO:LiNbO_(3) composition on the optical quality and resistance to photorefraction has been studied.Nd:MgO:LiNbO3(1molNd_(2)O_(3),7.5mol%MgO)crystal has been found to have enhanced resitance to photorc-fraction,lower phase matching temperature and good optical quality.This crystal is promising material for self-frequency-doubled and self-Q-switched laser devices.
文摘The Raman Spectra of LiNbO3:MgO(6.7mol%) at both lowtemperature and room temperature were studied. The results showed that the crystal structure had changed little after doping Mg++. At room temperature the lattice distorted a litlte, which caused the appearance of couping phenomenon of some individual scattering peaks. As the temperature decreased, the coupling reduced gradually.
基金supported by the National Natural Science Foundation of China(Nos.U20A20214 and 11974060)the Natural Science Foundation of Jilin Province (No.20210101154JC)。
文摘A continuous-wave(CW)π-polarized 1084 nm laser based on Nd:MgO:LiNbO_(3)under 888 nm thermally boosted pumping is reported.According to the absorption spectrum and energy level structure of Nd:MgO:LiNbO_(3),the 888 nm laser diode(LD)is used for thermally boosted pumping.This pumping method eliminates the quantum defect caused by the nonradiative transition in Nd:MgO:LiNbO_(3)under the traditional 813 nm pumping and effectively improves the serious thermal effect of the crystal.The unmatched polarized 1093 nm laser is completely suppressed,and theπ-polarized laser output of1084 nm in the whole pump range is realized by the 888 nm thermally boosted pumping.In the present work,we achieved the CWπ-polarized 1084 nm laser with a maximum output power of 7.53 W and a slope efficiency of about 46.1%.
