法拉第旋转器
Rotator type
 
Rotator appearance
 
Main principles
 
Rotator dimensions For 1mkm (HWD, mm)
 
Faraday rotators with shortening of the magnetooptical element
Isolation >30 dB at 0...1 kW
 
 
Due to optimization of magnetic system and using external and internal magnetic conductors the magnetic field was increased up to 2.5 Tesla. This allows to decrease the magnetooptical element (TGG) length.
 
140 * 150 * 140
 
Faraday rotators with compensation of the thermally induced depolarization
Isolation >25 dB at 1...5 KW
 
 
Two Faraday elements and a reciprocal optical element placed between them is used instead of one Faraday element rotating the polarization plane by 45 degrees, so, distortions induced in the first element are partially compensated in the second.
 
150 * 135 * 150
 
Cryogenic Faraday rotator
Isolation >20 dB at 5...50 KW
Increasing of the Verdet constant with cooling to nitrogen
 
temperatures allows to decrease the magnetooptical element (TGG) length.
 
 
Determined by cryostat dimensions (350 * 260 * 290)