TGG crystal is the best magneto-optical material for Faraday rotator and isolator


Faraday rotator is a magneto-optical device based on Faraday magneto-optical effect. It can rotate the polarization direction of incoming ray polarized light by a certain angle, and the rotation direction is only related to the internal magnetic field and independent of the light passing direction. The rotation angle of common Faraday rotators is designed as 45 ° or 90 °. An optical isolator is formed by placing a 45 ° rotator between two polarizers in a 45 ° configuration. Optical isolator is a kind of magneto-optical device with unidirectional light transmission. It is widely used in laser amplification system, mode-locked laser and laser measurement equipment.

Krystron's TGG crystal products are prepared by Czochralski method, with excellent characteristics such as large Verde constant, high extinction ratio, low absorption and low loss. It is the best magneto-optical material for making Faraday rotators and isolators, which can realize reliable isolation and stable performance. We can also customize isolators and rotators with different optical aperture, wavelength and package size for customers.