Magneto-Optical Crystal - TGG
Description
TGG is an excellent magneto-optical crystal used in various Faraday devices (Rotator and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.
Optical isolator devices make use of the non-reciprocal Faraday effect in TGG. The Faraday effect is the rotation of the plane of polarization of a light beam as it is transmitted through a material in the presence of an external magnetic field coaxial with the light. The polarization rotation is in the same sense regardless of the direction of propagation of the light. An optical isolator is a Faraday rotator combined with suitably aligned polarizers which allows light to pass in one direction only.
Magneto-Optical Crystal - TGG
Specifications |
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|---|---|
| Type Of Crystal: | TGG |
| Crystal Diameter: | 2.8-100 mm |
| Crystal Length: | 100 mm |
| AR Coating: | Both sides |
Features
Advantages:
• Large Verdet constant (35 Rad T-1m-1).
• Low optical losses (<0.1%/cm)
• High thermal conductivity (7.4W m-1K-1).
• High laser damage threshold (>1GW/cm2).
Applications
Rotator and Isolator
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How to order?
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Ships from:
China
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Sold by:
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On FindLight:
since 2018
Frequently Asked Questions
TGG is an excellent magneto-optical crystal used in various Faraday devices (Rotator and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.
The Faraday effect is the rotation of the plane of polarization of a light beam as it is transmitted through a material in the presence of an external magnetic field coaxial with the light.
TGG has a large Verdet constant (35 Rad T-1m-1), low optical losses (<0.1%/cm), high thermal conductivity (7.4W m-1K-1), and high laser damage threshold (>1GW/cm2).
TGG is used in Rotator and Isolator devices.
The technical parameters of TGG include orientation [111] within ±15 arcmin, wavefront 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 arcSeconds, perpendicularity <5 arcmin, surface quality 10/5 Scratch/Dig, and AR coating <0.2%.