Split-type magnetic steel Faraday rotator and polarization independent isolator laser
A Faraday rotator and split-lobe technology, which is applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems of low magnetic field utilization and large magnetic steel suction, and achieve the effects of reducing impact, saving materials, and reducing costs
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[0028] see Figure 4 and Figure 5 , the present invention split type magnetic steel Faraday rotator, comprises magnetic steel and is positioned at the magneto-optical crystal in the magnetic steel magnetic field, described magnetic steel is arranged side by side, and two groups that both ends are aligned, and each group of magnetic steel is made up of the same even-numbered lobe The cross-section of the shape is the magnetic ring structure formed by the fan-lobe magnetic blocks enclosing the fan-lobe, see Figure 4 . That is to say, on the basis of the existing magnetic ring, it is cut into even-numbered fan petals along the axial direction, and the cut plane passes through the center of the circle. Each fan magnet is magnetized radially, and the south poles of all the fan magnets in each group of magnets are close to the center of the circle / away from the center of the circle, and the north poles are located away from the center of the circle / close to the center of the cir...
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