Share Email Print

Proceedings Paper

Universal presentation of laser gain saturation laws
Author(s): Mordechai Lando; Shlomo Eisenbach; Shimon Gabay
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Three gain saturation laws are frequently used to describe the light energy propagation in laser amplifiers: two assigned to Rigrod, referring to homogeneous and inhomogeneous laser line. The third assigned to Frantz-Nodvick law. We show that under lossless medium conditions, and for both small signal and saturation regimes the laws can be presented uniformly as: Yout equals Yin(DOT)exp(go(DOT)L) where Y is a function of the normalized intensity I, which is the ratio of light intensity to saturation light intensity. The saturation intensity and the dependence of Y on I are different for each of the laws, but for all cases Y approaches I in the small-signal regime. We provide approximate analytical expressions, for the inverse function I(Y) for the two Rigrod laws, facilitating a one-step integration of the gain saturation laws.

Paper Details

Date Published: 13 August 1993
PDF: 6 pages
Proc. SPIE 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications, (13 August 1993); doi: 10.1117/12.150606
Show Author Affiliations
Mordechai Lando, Nuclear Research Ctr.-Negev (Israel)
Shlomo Eisenbach, Nuclear Research Ctr.-Negev (Israel)
Shimon Gabay, Nuclear Research Ctr.-Negev (Israel)

Published in SPIE Proceedings Vol. 1868:
Laser Resonators and Coherent Optics: Modeling, Technology, and Applications
Anup Bhowmik, Editor(s)

© SPIE. Terms of Use
Back to Top