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Polarization in D-shaped fiber modulated by magneto-optical dichroism of magnetic fluid |
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| Authors: | Rende Ma Luxue Wan Xiuhao Liu Xiaoping Li Junfeng Jiang Yunjie Xia |
| Affiliation: | (Shandong Provincial Key Laboratory of Laser Polarization and Information Technology,Department of Physics,School of Physics and Engineering,Qufu Normal University,Qufu 273165,China;College of Chemistry and Chemical Engineering,Qufu Normal University,Qufu 273165,China;College of Precision Instrument&Opto-electronics Engineering,Tianjin University,Tianjin 300072,China;Key Laboratory of Opto-electronics Information and Technical Science,Ministry of Education,Tianjin University,Tianjin 300072,China) |
| Abstract: | The polarization of a D-shaped fiber is modulated after immersing it in magnetic fluid(MF) and applying a magnetic field. Theoretical analysis predicts that magneto-optical dichroism of MF plays a key role in light polarization modulation. During light polarization modulation, the evanescent wave polarized parallel to the magnetic field has greater loss than its orthogonal component. Light polarization of a D-shaped fiber with a wide polished surface can be modulated easily. High concentration MF and a large magnetic field all have great ability to modulate light polarization. |
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