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Volume 25 - ICOP & ICPET 2019
ICOP & ICPET _ INPC _ ICOFS 2019, 25 - ICOP & ICPET 2019: 957-960 |
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Hosseini S E, Ghashghaei M R. Birefringence Effects on the Performance of the Devices Based on Optical Phase Modulator Inside a Sagnac Interferometer . ICOP & ICPET _ INPC _ ICOFS 2019; 25 :957-960
URL: http://opsi.ir/article-1-1852-en.html
URL: http://opsi.ir/article-1-1852-en.html
1- School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran
Abstract: (2130 Views)
Recently, optical phase modulator (PM) inside a Sagnac interferometer (SI) has many applications in electro-optic and microwave photonic systems. Propagating lights inside the SI are combined coherently at its output, so their polarizations must be maintained. Therefore, polarization-maintaining optical fiber (PMF) are used in the SI. Since PMFs have birefringence, propagating lights with different polarizations, experience different phase delay inside the SI. In this paper, the effects of birefringence on the performance of an SI containing a PM, is theoretically investigated using the Jones matrix method. Closed form expressions for its transmission and reflection coefficients are derived. It is shown that these coefficients can be tuned by adjusting the birefringence parameter of the PMF and parameters of the PM.
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