China Terbium Gallium Garnet TGG Crystal for Faraday Rotator - 3

Terbium Gallium Garnet TGG Crystal for Faraday Rotator - 3" Diameter, 7.4 W/mK Thermal Conductivity

Price Negotiable

MOQ: 1pc

Delivery Time: 3-4 weeks

Brand: Crystro

Product Description

TGG Crystal Terbium Gallium Garnet Magneto Optical Crystal

Terbium gallium garnet (Tb3Ga5O12, TGG) is a high-performance magneto-optical material optimized for visible and near-infrared spectral regions (400-470nm and 500-1500nm). This crystal features exceptional optical properties including a large Verdet constant, high thermal conductivity, low optical losses, and superior laser damage threshold, making it ideal for advanced optical applications.

Key Performance Advantages

Large Verdet Constant: 35 RadT⁻¹m⁻¹ at 1064 nm
High Thermal Conductivity: 7.4 Wm⁻¹K⁻¹
Low Optical Losses: < 0.1%/cm
High Laser Damage Threshold: > 1 GW/cm²
Large Size Capability: Up to 3" diameter boules
Excellent Extinction Ratio: >35 dB (High Grade: >40 dB)

Primary Applications

Faraday Rotators for optical isolation
Optical Isolators in laser systems
Magneto-optical switches and modulators
YAG, Ti-doped sapphire, and multi-stage amplification lasers
Ring type and seed injection laser systems

Material Properties

Property	Value
Chemical Formula	Tb3Ga5O12
Lattice Parameter	a=12.355Å
Growth Method	Czochralski
Density	7.13 g/cm³
Mohs Hardness	8.0
Melting Point	1725℃
Refractive Index	1.954 at 1064nm

CRYSTRO Manufacturing Specifications

Parameter	Specification
Orientation	[111] within ±15 arc min
Wave Front Distortion	<1/8 wave
Extinction Ratio	>35dB
Diameter Tolerance	+0.00mm/-0.05mm
Length Tolerance	+0.2mm/-0.2mm
Chamfer	0.10mm@45º
Flatness	<1/10 wave at 633nm
Parallelism	< 30 arc Seconds
Perpendicularity	< 5 arc min
Surface Quality	10/5 Scratch/Dig
AR Coating	<0.2%
Large Dimensions	2.0-76 mm in diameter