GENERATION OF SPATIALLY INCOHERENT SHORT PULSES IN LASER-PUMPED NEODYMIUM STOICHIOMETRIC CRYSTALS AND POWDERS

被引：255

作者：

GOUEDARD, C

HUSSON, D

SAUTERET, C

AUZEL, F

MIGUS, A

机构：

[1] FRANCE TELECOM,CTR NATL ETUDE TELECOMMUN,F-92220 BAGNEUX,FRANCE

[2] ECOLE POLYTECH,ECOLE NATL SUPER TECH AVANCEES,OPT APPL LAB,CNRS,URA 1406,F-91120 PALAISEAU,FRANCE

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1993年 / 10卷 / 12期

关键词：

D O I：

10.1364/JOSAB.10.002358

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have developed mirrorless quasi-monochromatic laser sources made of stoichiometric neodymium compounds (Nd0.75:La0.25P4O15 and NdCl3 . 6H2O) Pumped by nanosecond laser pulses. We find that short subnanosecond and narrow-bandwidth (0.15-nm) pulses are generated in both compounds when they are pumped at high intensities. This emission is spatially incoherent as shown by a speckle statistics analysis. Its origin is discussed in terms of collective effects. This shows that poor optical materials with strongly quenched emission may be useful for generating incoherent short pulses.

引用

页码：2358 / 2363

页数：6

共 22 条

[1]

[Anonymous], 1986, LASERS

[2]

Auzel F., 1987, Spectroscopy of Solid-State Laser-Type Materials. Proceedings of a Course, P293

[3] VERY LOW THRESHOLD CW EXCITATION OF SUPERFLUORESCENCE AT 2.72-MU-M IN ER-3+ [J].