PICOSECOND GAIN AND SATURATION MEASUREMENTS IN A KRF LASER-AMPLIFIER DEPUMPED BY AMPLIFIED SPONTANEOUS EMISSION

被引：18

作者：

HARVEY, EC ^{[1
]}

HOOKER, CJ ^{[1
]}

KEY, MH ^{[1
]}

KIDD, AK ^{[1
]}

LISTER, JMD ^{[1
]}

SHAW, MJ ^{[1
]}

LELAND, WT ^{[1
]}

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 70卷 / 10期

关键词：

D O I：

10.1063/1.350233

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The input/output characteristic of a large aperture (270-mm diam) electron-beam-pumped KrF laser amplifier is obtained for pulses of 6- and 40-ps duration. The off-resonance absorption coefficient is estimated by measurement of loss at 268 nm. The gain-to-loss ratio is found to decrease from 8 to 6 as the specific pump rate is increased from 0.3 to 0.65 MW cm-3. Gain depumping due to amplified spontaneous emission (ASE) is treated by a simple 1D code and found to give good agreement with experiment. A 3D code incorporating wall reflections gives even better agreement. The spatial distribution of gain and ASE is recorded using visible and ultraviolet imaging.

引用

页码：5238 / 5245

页数：8

共 26 条

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