Terbium Gallium Garnet TGG Crystal for Faraday Isolators - 400-1100 nm Range, 35 Rad T⁻¹m⁻¹ Verdet Constant

Price Negotiable

Price: USD 20-100/pc

MOQ: 10pcs

Delivery Time: 4-5 weeks

Brand: Crystro

Product Description

Terbium Gallium Garnet (TGG) Crystal

Premium magneto-optical crystal optimized for Faraday devices operating in the 400-1100 nm wavelength range (excluding 470-500 nm).

Product Overview

TGG crystal delivers exceptional performance for Faraday rotators and optical isolators with its superior magneto-optical properties, high thermal conductivity, and excellent laser damage resistance.

Key Features

Large Verdet Constant: 35 Rad T⁻¹m⁻¹ for efficient Faraday rotation
Low optical losses: <0.1%/cm for minimal signal degradation
High thermal conductivity: 7.4 W·m⁻¹·K⁻¹ for effective heat dissipation
Exceptional laser damage threshold: >1 GW/cm² for high-power applications

Primary Applications

Faraday Rotators for optical isolation systems
Optical Isolators for laser protection and signal integrity

Material Properties

Property	Value
Chemical Formula	Tb₃Ga₅O₁₂
Lattice Parameter	12.355 Å
Density	7.13 g/cm³
Mohs Hardness	8
Melting Point	1725 ℃
Refractive Index @ 1064 nm	1.954
Thermal Conductivity	9.4 × 10⁻⁶ C⁻¹
Verdet Constant @ 1064 nm	0.12 min/Oe·cm

Technical Specifications

Parameter	Specification
Orientation	[111] within ±15 arc min
Wave Front Distortion	< λ/8 wave
Extinction Ratio	> 30 dB
Diameter Tolerance	+0.00 mm / -0.05 mm
Length Tolerance	+0.2 mm / -0.2 mm
Chamfer	0.10 mm @ 45°
Flatness @ 633 nm	< λ/10 wave
Parallelism	< 30 arc seconds
Perpendicularity	< 5 arc min
Surface Quality	10/5 Scratch/Dig