【作者】 臧二军； 曹建平； 李烨； 李成阳；

【Author】 ZANG Er Jun, CAO Jianping, LI Ye, LI Chengyang National Institute of Metrology, Quantum Department, Beijing 100013, P. R. China

【机构】 中国计量科学研究院量子部；

【摘要】 采用偏振合束泵浦光的方法,用两支2W的泵浦半导体激光器产生了接近4W的808nm波长的泵浦功率,用其泵浦由Nd:YAG晶体制成的一种4反射面的半非平面单块固体环形激光器。通过对泵浦光与输出激光方向上的分离,使得输出的1064nm波长的激光中比较干净地去掉了剩余的808nm波长泵浦光成分,得到了单模和单频且功率和波长都十分稳定的超过2W的1064nm波长的红外激光辐射。利用长度为30mm的PPKTP倍频晶体,使红外激光单次通过该晶体,得到了超过100mW的532nm绿光输出和接近2W的1064nm红外激光输出。更多还原

【Abstract】 Using polarization prism to combine the beams from two 2W laser diodes at wavelength 808nm, near 4W pump power is obtained. The pump power is used to pump a semi-nonplanar monolithic ring laser that is fabricated by a Nd:YAG crystal with 4 reflecting facets on it. The 808nm wavelength component is removed from the output beam by separating the output beam from the pump beam. A very clean single mode and single frequency 1064nm output beam is obtained. The observed output power is over 2W and both its power and wavelength are very stable. A PPKTP with 30mm length is used as doubling crystal to generate the second harmonic. In a single passing way more than 100mW green light at 532nm wavelength is observed.更多还原