Research on photonic crystal fiber polarization devices based on surface plasmon

Boyao Li; Meng Wu; Guiyao Zhou; Zhiyun Hou; Changming Xia

doi:10.1117/12.2518285

14 February 2019 Research on photonic crystal fiber polarization devices based on surface plasmon

Boyao Li, Meng Wu, Guiyao Zhou, Zhiyun Hou, Changming Xia

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 110483F (2019) https://doi.org/10.1117/12.2518285
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

With the development communication, polarization filter, as the key components of communication, becomes more and more important. For satisfying various requirements, the paper studies different photonics crystal fiber (PCF) polarizing devices based surface plasmon resonance (SPR). Besides, we have also demonstrated their excellent polarization performance from two aspects of theory and experiment. On one hand, the paper theoretically proposed dual-wavelength single polarizing filter with the broadband of low crosstalk. It could have single polarizing filtering in the dual-wavelength of 1310 and 1550 nm and the polarization direction of optical output is independent of the wavelength of incident light. The polarization direction of emergent light through filter can always keep the core mode in x-polarized direction (x-PCM) in a wide range of wavelength, which increases the difference of confinement loss of core mode in y-polarized direction (y-PCM) and x-PCM, and reduces mutual crosstalk. On the other hand, considering the new communication waveband emerging, we present a V-type birefringence microstructure optical fiber with embedded dual copper wires that were made by the stack-drawing method and the dual copper wires were aligned in the vertical direction symmetrically. Experimental results showed that the fiber can be easily excited strong SPR in the S and L waveband. Then the core mode is completely coupled into the copper wires and generates the SPR in the y-polarized direction, to achieve the purpose of directional filtering.

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Boyao Li, Meng Wu, Guiyao Zhou, Zhiyun Hou, and Changming Xia "Research on photonic crystal fiber polarization devices based on surface plasmon", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110483F (14 February 2019); https://doi.org/10.1117/12.2518285

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KEYWORDS

Polarization

Polarizers

Photonic crystal fibers

Copper

Metals

Refractive index

Surface plasmons

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