掺铒玻璃的发光与1.54μm激光及各跃迁过程之间关系的研究

研究在不同掺杂条件（掺杂浓度等）和激发条件下，饵玻璃的上转换发光最强及发光机制；实现1.54μm激光运转；研究上转换发光、后向散射、激发态吸收（ESA）等与1.54μm激光涞南嗷ス叵担扒筇岣呒す庑实挠行Х椒āＭü芯靠缮钊肜斫飧髟厩ü讨涔叵担岣呒す庑驶蛏献环⒐庑剩匀搜郯踩す獠饩唷⒓す馔ㄐ拧⑹迪稚献患す獯笥幸庖濉

From 2000 to 2003, we have studied the optical spectral performance, especially the upconversion luminescence of the erbium doped glass and other glasses. The three-photon upconversion phenomena were observed in erbium-ytterbium-codoped phosphate glasses. CW and Q-switched operations of erbium glass laser were demonstrated. The highest power is 78.3mW and the slope efficiency is over 15% at CW operation mode. Q-switched pulses were obtained with over 10mW of average power and less than 8 ns of pulse width. These parameters are much higher than those mentioned in the project application forms for NSFC. Influence of these conditions, such as concentrations of erbium and ytterbium ions, length of the glass medium and the cavity,on the laser performance were studied. The effect of Upconversion luminescence on the laser was also pay attention to. The experimental results takes the lead position in China and reached the advanced level in the world.