4-Inch TGG Magneto Optical Crystal with 35-40 RadT⁻¹m⁻¹ Verdet Constant and 7.4 Wm⁻¹K⁻¹ Thermal Conductivity

Price Negotiable

Price: Negotiable

MOQ: 1pc

Delivery Time: 3-4 weeks

Brand: Crystro

Product Description

Product Overview

Terbium gallium garnet (Tb₃Ga₅O₁₂, TGG) magneto-optical crystals are essential materials designed for visible and near-infrared spectral applications (400-470nm and 500-1500nm). These 4-inch diameter Faraday-rotating crystals offer exceptional performance characteristics for advanced optical systems.

Key Performance Features

Large Verdet Constant: 35-40 RadT^-1m^-1 at 1064 nm
High Thermal Conductivity: 7.4 Wm^-1K^-1
Exceptional Laser Damage Threshold: >1 GW/cm²
Low Optical Losses:
Twice the Verdet constant compared to terbium-doped glass
Thermal conductivity significantly higher than typical glass materials

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

Manufacturing Specifications

Parameter	Specification
Orientation	[111] within ±15 arc min
Wave Front Distortion
Extinction Ratio	>35dB
Diameter Tolerance	+0.00mm/-0.05mm
Length Tolerance	+0.2mm/-0.2mm
Chamfer	0.10mm@45º
Flatness
Parallelism
Perpendicularity
Surface Quality	10/5 Scratch/Dig
AR Coating
Available Diameters	2.0-76 mm