Manyetik Optik Cam Çubukları

Faraday Rotator Glass

It is the terbium doped borosilicate glass and key component of Faraday Rotators and Optical Isolators for visible and near-IR spectral range in fiber-optic communication system.

Application:
It is a new important transparent optical glass material in high-tech area. It can be used to produce Optical Isolators, circulators, magneto-optical modulators, optical switches, new generation current sensors etc. Above devices have the characteristics of advance technology, stable performance, high sensitivity, high anti-interference, high insulation etc, furthermore. It can be produced in the bigger size, but less cost compared to crystal materials TGG or YIG.

Model: MOE-1

Verdet Constant: -0.313 min/Oe*cm or -91 rad/T*m at 632.8 nm
Verdet Constant: -0.096 min/Oe*cm or -28 rad/T*m at 1064 nm

Main Aperture: 2mm, 4mm, 5mm, 6mm, 8mm, 10mm, 20mm, 40mm, 50mm, 100mm etc.

Transmission window: 400nm-1600nm

Transparence rate ≥ 85% (Uncoated)

Index of Refraction
ND( at 589.3 nm) =1.7464

Abbe number:
VD: 50.07

Non-linear refractive index n2 (x10*-13 e. S. U. )=2.55

Density (g/cm*3): 4.97

Transformation temperature Tg: 788

Sag temperature Ts: 825

Coefficient of linear thermal expansion: 63.2× 10*-7/

Absorption coefficients < 0.001/cm at 1064nm.

Stress Birefringence: < 1nm/cm

Optical Quality(n) /cm < 2x10*-6

Bulk laser damage threshold > 15 (J/cm*2) 3ns pulse width at 1064 nm

Optical Quality:
Flatness of two faces: λ /8 wavelength at 632.8nm
Surface quality of two faces: 20-10 scratch/dig (MIL-0-13830A)
Parallelism: <30 arc seconds
Perpendicularity: < 1/2 degree
Chamfer: <0.2mm*45+/-5degree

AR(anti-reflectivity) Coating:
Reflectivity per surface: R<0.2% 1064nm etc.