Universal presentation of laser gain saturation laws

Mordechai Lando; Shlomo Eisenbach; Shimon Gabay

doi:10.1117/12.150606

13 August 1993 Universal presentation of laser gain saturation laws

Mordechai Lando, Shlomo Eisenbach, Shimon Gabay

Proceedings Volume 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications; (1993) https://doi.org/10.1117/12.150606
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

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: Y_out equals Y_in(DOT)exp(g_o(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.

Citation Download Citation

Mordechai Lando, Shlomo Eisenbach, and Shimon Gabay "Universal presentation of laser gain saturation laws", Proc. SPIE 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications, (13 August 1993); https://doi.org/10.1117/12.150606

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available