title: Terbium gallium garnet ceramic Faraday rotator for high-power laser application.
abstract: A terbium gallium garnet (TGG) ceramic Faraday rotator (FR) with an isolation ratio of 33 dB was demonstrated at a laser radiation power of 257 W. This FR can be equipped with a large optical aperture by using ceramics technology to prevent laser damage at high-energy pulse operation. The thermal lens of a 257 W laser with a beam diameter of 2.6 mm had a focal length of 9.5 m, which is easily corrected using a spherical lens to suppress the undesirable effects of thermal lensing. The rotation angle of the FR was stabilized by water cooling. The results indicate that the TGG-ceramic-based FR is suitable for high-energy laser systems with high repetition rates.
authors.forename: Ryo
authors.initials: R
authors.lastname: Yasuhara
authors.forename: Ilya
authors.initials: I
authors.lastname: Snetkov
authors.forename: Alexey
authors.initials: A
authors.lastname: Starobor
authors.forename: Dmitry
authors.initials: D
authors.lastname: Zheleznov
authors.forename: Oleg
authors.initials: O
authors.lastname: Palashov
authors.forename: Efim
authors.initials: E
authors.lastname: Khazanov
authors.forename: Hoshiteru
authors.initials: H
authors.lastname: Nozawa
authors.forename: Takagimi
authors.initials: T
authors.lastname: Yanagitani