抄録
A large diameter Faraday isolator for kW class average laser systems was developed using a 53-mm diameter
TGG (Tb3Ga5O12) ceramic. The wavefront distortion of TGG ceramic was 0.1 ~ 0.2λ . The maximum
magnetic field provided by a permanent magnet was 1.4 ~ 1.5 T. A 53-mm diameter Faraday isolator
was demonstrated using a TGG compensation for thermal induced depolarization. The
compensated depolarization Faraday rotator is over 4% at incident laser power of over 900 W. This
Faraday rotator is scalable to large apertures for kW class (few 10 J pulse at 100 Hz repetition rate) average-
power laser systems.
https://ror.org/035t8zc32 
