Product Details
You are here: Home / Laser Products / Laser Glass / Faraday Rotator
Glass
Faraday Rotator Glass
Faraday rotator glass is a kind of magneto-optical glasses with
good transmittance in the visible and infrared range(520~1400nm).
Faraday rotator glass is more suitable for medium and low power
level lasers, and is cheaper compared with the other magneto-optic
crystals such as TGG,TSAG. TG20 has been used widely in switch,
modulator, sensor, magneto-optical isolator.
Material and Specifications
Diameter Tolerance | < /8 @ 633nm |
Length Tolerance | ±0.05mm |
Flatness | </8 @ 633nm |
Surface Quality | 10/5 scratch/dig |
Parallelism | < 5 seconds |
Clear Aperture | >90% |
Edge Chamfer | 0.1mm x 45° |
Physical and Chemical Properties
Materials | TG20 | TG28 |
Thermal Coefficient of Refractive Index (10-7 /℃) | 74 | |
Thermal Coefficient of Optical Path (10-7 /℃) | 105 | |
Transmission Window (nm) | 520-1400 | 520-1400 |
Coefficient of Thermal Expansion (10-7 /℃) | 51.3 | 69 |
Transition Temperature (℃) | 760 | 759 |
Sag Temperature (℃) | 800 | 800 |
Density (g/cm 3 ) | 4.32 | 4.99 |
Young’s Modulus GPa) | 108 | |
Poisson’s Ratio | 0.22 | |
Knoop Hardness (Kg/cm2 ) | 760 | |
Optical and Spectral Properties
Materials | TG20 | TG28 |
Refractive Index (1064nm) | 1.6721 | 1.736 |
Refractive Index (d 589.3nm) | 1.6888 | 1.75 |
Nonlinear Refractive Index (10-13 e.s.u .) | 2.46 | 2.42 |
Abbe Number | 53.14 | 50.98 |
Verdet Constant
Materials | TG20 | TG28 |
Verdet Constant V (min/Oe.cm): 632.8nm | -0.258 | -0.361 |
Verdet Constant V (min/Oe.cm): 1064nm | -0.075 | -0.106 |
- High verdet constant
- Good chemical durability
- Excellent transparency
- Extinction ratio tester
- Raman Fiber amplifier module
- Magneto optical switch
- Magneto-optical modulator
- Magneto-optical isolator
Company Profile
Crylink is a manufacturer and supplier of Single Crystal Materials and
optical components used in lasers, imaging and other optical areas.
Crylink is one of the high tech company of Nanjing Institute of Advance
Laser Technology(NIALT), which is the only one industrialization base of Shanghai
Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences.
Our peoduct mainly include laser crystal,nonlinear crystal, Q-switch crystal,laser,scintillator crystal , optic crystal and Piezoelectric crystal.
Crylink
——growing crystals, linking values
We are seller of crystals. At same time, we are producer of
crystals.
It is a long and arduous process from seed crystal to the desired
single crystal, the composition of the crystal changes through
three states and eventually grows into beautiful crystals. We
witness the growth process of each crystal and clearly know
technologies of each step in the crystal growth process, which
means that we can directly provide customers with crystals that
satisfied customer requirements.
We create value. At same time, we link value.
From company to individual, we all pursue the word "value".
Individual is valuable in society, enterprise is valuable in the
industry. We cherish the existence of value. We hope to set the
enterprise’ value as start pointing, expand to the surrounding,
extend the value from the customer to the supplier. Linking
enterprise and the industry more closer, to create more value.