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TGG

Features:
●Large magneto-optical constant (40 rad t-1m-1)
●Low light loss (< 0.1% / cm)
●High thermal conductivity (7.4wm-1k-1)
●High laser damage threshold (> 1GW / cm) ²)
Applications:
●Faraday rotator
●Optical isolator

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Terbium gallium garnet (TGG) is a kind of high performance magneto-optical crystal in the visible and near infrared spectrum, which is widely used in laser technology, optical communication and optical information processing technology. It has high feld constant, low optical absorption coefficient, high laser damage threshold and good optical properties. These excellent properties make TGG crystal an ideal material for magneto-optical isolator.

In recent years, growing large-size and high-quality TGG crystals has been a hot research topic in the field of crystal materials at home and abroad. With the unremitting efforts of the professional R & D team, we has successfully grown TGG crystal with a diameter of 100 mm in June 2020.

Chemical Formula

Tb3Ga5O12

Growth method

Czochralski

Lattice constant

a=12.355Å

Density

7.13g/cm³

Hardness

8.0 Mohs

Melting point

1725℃

Refractive index

1.954 at 1024nm

Verdet constant

190/134/40@532nm/633nm/1064nm

Dimension

MaxФ101.6mm(4inch

Crystal orientation

< 111>±15′

Extinction ratio

>35dB

Diameter tolerance

+0mm/-0.05mm

Length tolerance

+0.1mm

Chamfering

<0.1*45°

Flatness

<λ/10@633nm

Parallelism

<30″

Perpendicularity

15′

Surface quality

10/5

Wavefront distortion

<λ/8@633nm

Coating

According to customer requirements

Note: Parameters above can be customized as required.



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Contact: John Jay Woo

Phone: +86-13982280204

E-mail: digco(at)digco-techs(dot)com

Whatsapp:+86-13982280204

Add: No.2339,South Secrion of Tianfu Avenue,Tianfu New Area,Chengdu 610213,China