Yb:S-FAP Lasers.

Schaffers, K. I.

Technical Information Center Oak Ridge Tennessee

关键词: Lasers;    Amplifiers;    Defects;    Mercury;    Crystals;   

RP-ID  :  DE200415006526

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

It has recently been reported that several high power, diode-pumped laser systems have been developed based on crystals of Yb:S-FAP(Yb(sup 3+):Sr(sub 5)(PO(sub 4)(sub 3)F). The Mercury Laser, at Lawrence Livermore National Laboratory, is the most prominent system using Yb:S-FAP and is currently producing 23J at 5 Hz in a 15 nsec pulse, based on partial activation of the system. In addition, a regenerative amplifier is being developed at Waseda University in Japan and has produced greater than 12 mJ with high beam quality at 50Hz repetition rate. Q-peak has demonstrated 16 mJ of maximum energy/output pulse in a multi-pass, diode side-pumped amplifier and ELSA in France is implementing Yb:S-FAP in a 985 nm pump for an EDFA, producing 250 mW. Growth of high optical quality crystals of Yb:S-FAP is a challenge due to multiple crystalline defects.