Faraday glasses, also known as Faraday rotators, are devices that can rotate the polarization of light passing through them by utilizing the Faraday effect. The Faraday effect is a phenomenon in which the plane of polarization of a light wave is rotated when it passes through a magnetic field parallel to the direction of propagation.
MOS-4 is a type of Faraday glass that is made from a high-quality optical glass material and is designed to operate in the visible to near-infrared range of the electromagnetic spectrum. MOS-4 Faraday glasses are commonly used in laser systems, such as Nd:YAG lasers, to rotate the polarization of light passing through the system. This is important in applications such as laser ranging, interferometry, and telecommunications.
MOS-4 Faraday glasses consist of a glass cell with two parallel windows and a magnetic field applied perpendicular to the direction of light propagation. The rotation of the polarization of the light passing through the glass cell is proportional to the strength of the magnetic field and the length of the glass cell.
Faraday glasses like MOS-4 are important components in many optical systems where polarization control is crucial. They allow for the manipulation of the polarization of light and enable the creation of more advanced optical devices and systems.
|Density, g/cm3|| |
|Mohs hardness|| |
4 - 5
|Refractive index, at 587.5 nm|| |
n = 1.6889
|Non-linear coefficient, esu|| |
2.65 x 10-13
|Thermal expansion coefficient|| |
96.4 x 10-7 x °K-1
|Verdet constant, rad x T-1 x m-1|
|» = 633 nm|| |
|» = 1060 nm|| |
|Optical losses at 633 and 1060 nm, cm-1|| |
|Optical quality (” n), cm-1|| |
< 0.5 x 10-6
|Elements maximum dimensions, mm|| |
dia. 150 x 80