title: Faraday rotator based on TSAG crystal with <001> orientation.
abstract: A Faraday isolator (FI) for high-power lasers with kilowatt-level average power and 1-µm wavelength was demonstrated using a terbium scandium aluminum garnet (TSAG) with its crystal axis aligned in the <001> direction. Furthermore, no compensation scheme for thermally induced depolarization in a magnetic field was used. An isolation ratio of 35.4 dB (depolarization ratio γ of 2.9 × 10-4) was experimentally observed at a maximum laser power of 1470 W. This result for room-temperature FIs is the best reported, and provides a simple, practical solution for achieving optical isolation in high-power laser systems.
authors.forename: Ryo
authors.initials: R
authors.lastname: Yasuhara
authors.forename: Ilya
authors.initials: I
authors.lastname: Snetkov
authors.forename: Aleksey
authors.initials: A
authors.lastname: Starobor
authors.forename: Evgeniy
authors.initials: E
authors.lastname: Mironov
authors.forename: Oleg
authors.initials: O
authors.lastname: Palashov