Products
Home /CRYSTALS /

Magneto-optical crystal

/TGG crystal Terbium Gallium Garnet

TGG crystal Terbium Gallium Garnet

TGG is an excellent magneto-optical crystal used in various Faraday devices(Polarizer and Isolator) in the range of 400nm-1100nm, excluding 475-500nm.

  • Product Origin:

    China
  • Shipping Port:

    Fuzhou, China
  • Lead Time:

    3-4weeks
Share To : f t y b l ins
  • Product Detail

Descriptions:


TGG crystal Terbium Gallium Garnet is an essential magneto-optical crystal l for faraday polarizer. Faraday polarizer is composed of the TGG crystal rod and a specially designed magnet. The polarization of the beam through the magneto-optical materials deflexed and direction of the deflection only has some relations with the direction of the magnetic field and has nothing to do with the direction of the beam propagation. An optical isolator is an optical component which allows the transmission of polarized light in only one direction.


Main application:

1) Faraday Isolators

2) Faraday Polarizer

Advantages:

3) Large Verdet constant (35 Rad T-1 m-1)

4) Low optical losses (<0.1%/cm)

5) High thermal conductivity (7.4W m-1 K-1).

6) High laser damage threshold (>1GW/cm2)


Basic properties of TGG crystal:

Chemical Formula:

Tb3Ga5O12

Lattice Parameter

a=12.355Å

Growth Method

Czochralski

Density

7.13g/cm3

Mohs Hardness

8.0

Melting Point

1725

Refractive Index

1.954 at 1064nm


HGO offers TGG specifications:

Orientation:

<111> crystalline direction

Wavefront Distortion:

λ/10 per inch @ 632.8 nm

Dimension Tolerances

rods with diameter: +0.0/-0.05 mm , Length: ±0.1 mm

Extinction Ratio

>30dB

Surface Quality:

10/5 Scratch/Dig MIL-O-1380A

Parallelism:

< 10

Perpendicularity:

< 5

Clear Aperture:

> 90%

Surface Flatness:

< λ/10 @ 632.8 nm

Chamfer:

< 0.1 mm @ 45o

Size

Upon customer request

Coating

AR coating upon customer’s request

Damage Threshold

750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz

Quality Warranty Period

One year under proper use



Why Choose HGO ?

HG OPTRONICS.,INC. has the ability to supply high quality Terbium Gallium Garnet TGG Crystal in mass production quantity. TGG crystal is an essential parts of isolators so strict quality control is applied to our TGG’s inclusions, absorption, scattering loss, bulk loss, bulk stress and most importantly ER value. All the necessary and essential specs can be physically measured in house.

In the past few years, the quantity of TGG crystals increasing largely and we have become key supplier of top isolator manufactures in world and HGO has a mass-production line for TGG crystals and have wide experiences and strong ability to supply such crystals with large quantity and in short delivery time.

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Related Products
C-Lens
Laser Optics

C-lens are specifically designed for fiber optics applications such as collimator, isolator, switch, collimator array and laser assembly. Compare to other gradient index lens, C-lens have several advantages including low cost, low insertion loss in long working distance, and wide working distance range. With our experienced optical design engineers, HG OPTRONICS can also provide custom designed C-lens per customer's requirement.

Read More
Fiber Laser Protective Lens Machine Scanning
Laser Beam Collimation Lens

Laser Lenses are used to focus collimated light from laser beams in a variety of laser applications. Laser Lenses include a range of lens types including HGQ Lenses, Cylinder Lenses, or Laser Generator Lenses. Laser Lenseare designed to focus light in several different ways depending on the lens type, such as focusing down to a point,a line, or a ring. Many different lens types are available in a range of wavelengths.

Read More
Custom Plano Concave Cylindrical Lens
Plano-Concave Rectangular Cylindrical Lenses

Plano-concave rectangular cylindrical lenses provide uni- axial negative imaging for anamorphic beam expansion and a wide range of applications.These lenses may also be used as mirror blanks if a concave cylindrical surface mirror is required.

Read More
UV Fused Silica Corner Cube Retroreflectors
UV Fused Silica Corner Cube Retroreflectors Prisms

Corner Cube Prism also called Retroreflector.It has three mutually perpendicular surfaces and a hypotenuse face. Light entering through the hypotenuse is reflected by each of the three surfaces in turn and will emerge through the hypotenuse face parallel to the entering beam regardless of the orientation of the incident beam. For its special performance, it is often used to the distance measurement, optical signal process and laser.

Read More
Custom Colored Glass Filter
Optical Colored Glass Filter

Colored glass filters are optical components that control incident wavelength by distributing an optical absorbing substance in glass.

Read More
AR Coated Negative Achromatic Lens
Broadband AR Coated Achromatic Lenses(Doublet Lenses)

Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. Achromatic Lenses, which are often designed by either cementing two elements together or mounting the two elements in a housing, create smaller spot sizes than comparable singlet lenses.

Read More
LiF crystal  windows
LiF crystal lithium fluoride

HGO grows LiF crystals in house using Czochralski technology. LiF crystal or lithium fluoride crystal is an optical material with outstanding transmittance in VUV region. It is also used for windows, prisms, and lenses in the visible and infrared in 0.104µm-7µm. LiF single crystal is sensitive to thermal shock and would be attacked by atmospheric moisture at 400°C. When working at a high temperature of 600°C, the LiF crystal softens and is slightly plastic, so it can be bent into radius plates. In addition irradiation produces color centers. Hence, users should take measures to protect LiF crystals from moisture and high energy radiation damages. What is more LiF can be cleaved along (100) plane and less commonly (110) plane. The optical characteristics are good and yet the structure is not perfect and cleavage is difficult.

Read More
NdYAG Crystal for solid-state laser
Nd:YAG crystals Neodymium Doped Yttrium Aluminum Garnet

Nd:YAG is the earliest and most famous laser host crystal. Since it combines great advantages in many basic properties,Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their frequency-doubler, tripler, and higher order multiplier. It is widely used in industrial, medical, military and scientific fields.. Nd:YAG crystals are wildly used in all types of solid-state laser systems-frequency-doubled continuous wave, high-energy Q-switched, and so forth.Its good fluorescent lifetime thermal conductivity and physical strengths makes it suitable for high power lamp pumped laser.

Read More
Leave A Message
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Home

Products

about

contact