DIRECT MEASUREMENTS OF THE TERMINAL LASER LEVEL LIFETIME IN NEODYMIUM-DOPED CRYSTALS AND GLASSES

被引：43

作者：

BIBEAU, C

PAYNE, SA

POWELL, HT

机构：

[1] Lawrence Livermore National Laboratory, University of California, Livermore, CA, 94550

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1995年 / 12卷 / 10期

关键词：

D O I：

10.1364/JOSAB.12.001981

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have measured the terminal level lifetime (tau 11/2) for the 1-mu m neodymium transition in several laser media, using a novel pump (2.41-mu m) and probe (1.06-mu m) technique. This method allows us to populate the (4)I13/2 level directly and subsequently to monitor the terminal level (4)I11/2 population as a function of time by observing the change in integrated fluoresence of the 0.88-mu m emission for each time delay between the pump and the probe pulses. We developed a computer model to analyze the data and determined the upper and lower limits for the tau 11/2 lifetime. The results for some of the materials investigated are 115-225 ps for Nd:Y3Al5O12, 250-450 ps for Nd:LG-750 (phosphate glass), 535-740 ps for Nd:LG-660 (silicate glass), 896-1900 ps for Nd:YAlO3, and 10.5-20 ns for Nd:YLiF4. In addition, we found the lifetimes to be independent of the neodymium doping concentration for the phosphate and silicate glass samples investigated. (C) 1995 Optical Society of America

引用

页码：1981 / 1992

页数：12

共 50 条

[1]

BASIEV TT, 1991, OSA PROC, V10, P358

[2] SCALABLE DIODE-END-PUMPING TECHNOLOGY APPLIED TO A 100-MJ Q-SWITCHED ND(3+)-YLF LASER-OSCILLATOR [J].