Compensation of thermally induced modal distortions in Faraday isolators

Authors :: Khazanov, Efim
Andreev, Nikolay F.
Palashov, Oleg
Mal'shakov, Anatoly
Shaykin, Andrey A.
Amin, Rupal
Reitze, David H.
Poteomkin, Anatoly K.
Sergeev, Alexander
Zelenogorsky, Victor
Ivanov, Igor A.
Mueller, Guido
Tanner, David B.
Source :: IEEE Journal of Quantum Electronics. Oct, 2004, Vol. 40 Issue 10, p1500, 11 p.
Publication Year :: 2004
Abstract: An attempt is made to investigate two methods of compensation of thermal lensing in high-power terbium gallium garnet (TGG) Faraday isolators, explaining compensation by means of an ordinary negative lens and compensation using FK51 Schott glass possessing a negative dn/dT. The absorption of laser power leads to losses in the initial spatial polarization mode of laser radiation.