Crystals for polarizing and non-linear optical applications.

Terbium Gallium Garnet (TGG) is the right crystal material for Faraday devices (rotators and isolators).

The Faraday rotator is made up of a TGG rod contained in a specially designed magnet. The polarization of a light beam passing through the device is rotated about the propagation axis.The direction of rotation is only dependent on the direction of the magnetic field and not on the direction of propagation of the light beam.The optical isolator consists of a 45 degree rotator set between two suitably arranged polarizers which allow a light beam to pass through in one direction only. With a combination of excellent properties such as large verdet constant, low light loss, high thermal conductance and high light damage threshold,TGG is the most suitable material for Faraday devices. It is widely used for YAG lasers and Ti:sapphire tunable lasers, ring lasers,etc

High quality crystals for solid-state lasers.

Non-linear optical crystals for frequency doubling, phase modulation, etc.

A selected range of our high quality crystals for specialty optical usage.

Cr⁴⁺:YAG for passive Q-Switching of solid-state lasers

Passive Q-Switching is preferred for simplicity of manufacturing and operation, low cost and reduced system size and weight. Cr⁴⁺:YAG (Y₃Al₅O₁₂) is an excellent crystal for passively Q-switching diode pumped or lamp-pumped Nd:YAG, Nd:YLF, Yb:YAG or other Nd and Yb doped lasers at wavelength from 1.0 to 1.2 mm.

Because of its chemically stability, durability, UV resistance, good thermal conductivity, and high damage threshold (> 500 MW/cm2), it will replace traditional materials such as LiF, organic Dye and color centers.