PPLT倍频宽线宽掺镱双包层光纤放大激光  

Second Harmonic Generation in PPLT Using a Broad-band Seeded Ytterbium-doped Double-clad Fiber Amplifier

作　　者：杜建新[1] 楼祺洪[1] 薛冬[1] 周军[1] 孔令峰[1] 董景星[1] 魏运荣[1] 任铁未[2] 朱永元[2] 

机构地区：[1]中国科学院上海光学精密机械研究所 [2]南京大学微结构实验室物理系南京大学,南京210093

出　　处：《光子学报》2006年第1期5-8,共4页Acta Photonica Sinica

基　　金：南京大学固体微结构实验室开放课题重点项目(Z031001)

摘　　要：分别通过理论和实验研究了周期性极化的钽酸锂(PPLT)倍频宽线宽准连续掺镱双包层光纤放大激光·PPLT样品长为40mm,极化周期为7.67μm·基频光的中心波长为1064nm,线宽约为6nm·从基频光的光谱特性出发,利用超晶格倍频理论,解释了实验中获得的倍频温度与二次谐波功率之间的关系·在基频光的功率为2.2W时,获得的宽线宽光纤激光倍频效率为1.8%·The periodically poled LiTaO3 frequency-doubling the broad-band and quasi-cw laser of seeded Ytterbium-doped double-clad fiber amplifier have been investigated experimentally and theoretically. PPLT is 40 mm long and 7.67μm in period. The central wavelength of fundamental laser is 1. 064μm and 6 nm in bandwidth. Applying the quasi-phase matching theory and the character of fundamental laser spectrum, the relation of second harmonic power with the temperation was explained. The frequency-doubling efficiency of 1.8% is obtained when the broad band laser oower is 2.2 W.

关 键 词：周期性极化的钽酸锂超晶格 宽线宽 双包层光纤放大 倍频 

分 类 号：TN248.1[电子电信—物理电子学]