红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2015年
7期
1986-1990
,共5页
董小龙%高兰兰%张帆%焦石%纪冠东
董小龍%高蘭蘭%張帆%焦石%紀冠東
동소룡%고란란%장범%초석%기관동
主动调Q%脉冲参数模拟%反转衰减因子%无量纲变量z
主動調Q%脈遲參數模擬%反轉衰減因子%無量綱變量z
주동조Q%맥충삼수모의%반전쇠감인자%무량강변량z
actively Q-switched%simulation of pulse parameters%inversion reduction factor%dimensionless variable z
利用调Q速率方程,确定了最优输出耦合反射率,最大脉冲能量,最大峰值功率和脉冲宽度与无量纲变量z的关系,并分析了谐振腔往返损耗、谐振腔增益和反转衰减因子分别对Nd:YVO4与Nd:YAG调Q脉冲参数的影响。结果表明:最优输出耦合反射率和脉冲宽度随谐振腔往返损耗的增大而减小,最大脉冲能量和最大峰值功率受反转衰减因子的影响很大,并随反转衰减因子的增大而减小。通过确定z值可以将调Q脉冲参数具体化。
利用調Q速率方程,確定瞭最優輸齣耦閤反射率,最大脈遲能量,最大峰值功率和脈遲寬度與無量綱變量z的關繫,併分析瞭諧振腔往返損耗、諧振腔增益和反轉衰減因子分彆對Nd:YVO4與Nd:YAG調Q脈遲參數的影響。結果錶明:最優輸齣耦閤反射率和脈遲寬度隨諧振腔往返損耗的增大而減小,最大脈遲能量和最大峰值功率受反轉衰減因子的影響很大,併隨反轉衰減因子的增大而減小。通過確定z值可以將調Q脈遲參數具體化。
이용조Q속솔방정,학정료최우수출우합반사솔,최대맥충능량,최대봉치공솔화맥충관도여무량강변량z적관계,병분석료해진강왕반손모、해진강증익화반전쇠감인자분별대Nd:YVO4여Nd:YAG조Q맥충삼수적영향。결과표명:최우수출우합반사솔화맥충관도수해진강왕반손모적증대이감소,최대맥충능량화최대봉치공솔수반전쇠감인자적영향흔대,병수반전쇠감인자적증대이감소。통과학정z치가이장조Q맥충삼수구체화。
Using Q-switched rate equations, the relationship among the optimum reflectivity, maximum pulse energy, largest peak power, pulse width and the dimensionless variable z was analyzed, and the influence of the condition of different cavity roundtrip dissipative loss, cavity gain and inversion reduction factor on actively Q -switched pulse parameters in Nd:YVO4 and Nd:YAG was also analyzed, respectively. The modeling results indicate that the optimum reflectivity and pulse width decrease with the increase of cavity roundtrip dissipative loss, and the maximum pulse energy and largest peak power decrease with the increase of inversion reduction factor which affects maximum pulse energy and largest peak power greatly. One can make the Q-switched pulse parameters embodied through the certain value of z .