Rare metals for research and industry!
Ultra pure
Master alloy
Special formed
Sputtering target
Evaporation material
Crystal and wafer
Functional pro
>>
Terbium Gallium Garnet (TGG)  
Formula: Tb3Ga5O12
Alias / Keywords:
Item no.: 963917
Inquiry
.

The magneto-optical crystal TGG is an optimum material for Faraday devices (Rotator and Isolator ) in the range from 400nm-1100nm, excluding 470-500nm.The Faraday rotator consists of a TGG rod contained inside a special designed magnet. The rotation sense of the polarization of a light beam passing through the rotator only depends on the direction of the magnetic field and not on the direction of propagation of the light beam. The optical isolator is a Faraday rotator set between two suitably aligned polarizers which allows a light beam to pass through in one direction only. TGG has a combination of excellent properties such as large Verdet constant, low light loss, high thermal conductance and high light damage threshold which makes it a unique material for Faraday devices particularly suitable for YAG lasers and Ti: sapphire tunable lasers, ring lasers and seed injected lasers.

Crystal Parameters:

Lattice Parameter

a=12.355 

Growth Method

Czocralski

Density

7.13g/cm3

Mohs Hardness

8.0

Melting Point

1725℃

Refractive Index

1.954          at 1064nm

Thermal Conductivity

9.4x10-6-1

Verdet Constant

0.12min/Oe.cm  at 1064nm

Specifications:

Orientation

<111> within 5 degrees

Wave front Distortion

< 1/8 wave total  (at 633nm)

Extinction Ratio

>30dB

Dimtional
Tolerances

Diameter

+0.00mm/-0.05mm

Length

±0.2mm

Chamfer

0.13mm (+0.00mm,-0.08mm) at 45°±5°

Flatness

< 1/10 wave at 633nm

Parallelism

< 1 minutes of arc

Perpendicularity

< 1 degree

Scratch-dig

10-5 per MIL-O13830A

Inquiry
 
 
Home | Terms and conditions | Privacy policy | Tools | Site map | Webmaster
© Copyright ZLX TECH 2012-2016
粤ICP备07508642号
Version: ZTMWD