Accurate method for the measurement of absorption cross sections of solid-state saturable absorbers

A rigorous approach taking into account both the temporal and spatial distributions of the pulsed probe beam used for transmission measurements of solid-state saturable absorbers is applied to characterise these absorbers accurately. The use of this method can significantly influence the resulting v...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2002-04, Vol.74 (4-5), p.367-374
Main Authors: SHCHERBITSKY, V. G, GIRARD, S, FROMAGER, M, MONCORGE, R, KULESHOV, N. V, LEVCHENKO, V. I, YAKIMOVICH, V. N, FERRAND, B
Format: Article
Language:English
Subjects:
Absorption cross sections
Beam characteristics: profile, intensity, and power
spatial pattern formation
Beams (radiation)
Capture cross sections
Chromium
Cobalt
Doped-insulator lasers and other solid state lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Lasers
Optics
Physics
Q-switching
Spatial distribution
Temporal logic
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A rigorous approach taking into account both the temporal and spatial distributions of the pulsed probe beam used for transmission measurements of solid-state saturable absorbers is applied to characterise these absorbers accurately. The use of this method can significantly influence the resulting value for the ground-state absorption cross section. It also permits us to avoid the introduction of an artificial excited-state absorption in systems where, according to energy-level diagrams, no such loss should occur. This is illustrated in the case of passive Q-switchers for 1.5-*mm lasers such as Co-doped LaMgAl11O19 and MgAl2O4 and Co- or Cr-doped ZnSe and ZnS.
ISSN:0946-2171
1432-0649
DOI:10.1007/s003400200809