Broadband single-polarization photonic crystal fiber based on surface plasmon resonance effect

Rui Liu; Tiesheng Wu; Yan Liu; Xu Zhong

doi:10.1117/12.2668523

14 February 2023 Broadband single-polarization photonic crystal fiber based on surface plasmon resonance effect

Rui Liu, Tiesheng Wu, Yan Liu, Xu Zhong

Proceedings Volume 12589, International Conference on Optical Technology, Semiconductor Materials, and Devices (OTSMD 2022); 125890B (2023) https://doi.org/10.1117/12.2668523
Event: International Conference on Optical Technology, Semiconductor Materials, and Devices (OTSMD 2022), 2022, Longyan, China

Abstract

We numerically demonstrate a broadband single polarization Photonic Crystal Fiber (PCF) based on surface plasmon resonance effect. The PCF is constructed of multi-layer hexagonal air holes with a silicon core. The inner wall of the two large air holes is coated with gold films for exciting surface plasmon resonances. The transmission characteristics of the fiber are analyzed by the finite-element method. At the wavelength point of 1.55 μm, the confinement losses of the x and y-polarization modes are 1400 dB/m and 15 dB/m, respectively. The severe difference in polarization loss can support the efficient transmission of the y-polarization mode over the range of 1.51-2.24 μm. Only short fiber lengths of 2 cm, the achievable power of the y-polarization mode can be more than 0.5, and the extinction ratio is less than -20dB for the wavelength range. The presented fiber has promising application prospects in polarization-maintaining and high-power laser systems.

Citation Download Citation

Rui Liu, Tiesheng Wu, Yan Liu, and Xu Zhong "Broadband single-polarization photonic crystal fiber based on surface plasmon resonance effect", Proc. SPIE 12589, International Conference on Optical Technology, Semiconductor Materials, and Devices (OTSMD 2022), 125890B (14 February 2023); https://doi.org/10.1117/12.2668523

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KEYWORDS

Polarization

Dielectric polarization

Photonic crystal fibers

Silicon

Surface plasmons

Design and modelling

Metals

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