An Ultra-broadband Single Polarization Filter Based on Plasmonic Photonic Crystal Fiber with a Liquid Crystal Core
| Autor: | Jian-ju Yang, Linghong Jiang, Xingtao Zhao, Zuo-han Li, Lantian Hou, Yi Zheng |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Extinction ratio business.industry Surface plasmon Biophysics 02 engineering and technology Polarizing filter Polarization (waves) 01 natural sciences Biochemistry 010309 optics Wavelength 020210 optoelectronics & photonics Optics Liquid crystal 0103 physical sciences 0202 electrical engineering electronic engineering information engineering business Plasmon Biotechnology Photonic-crystal fiber |
| Zdroj: | Plasmonics. 12:411-417 |
| ISSN: | 1557-1963 1557-1955 |
| Popis: | An ultra-broadband single polarization filter based on plasmonic photonic crystal fiber with a liquid crystal core is investigated using the full-vectorial finite element method. Numerical simulations show that the loss of x-polarized core mode is better than 248.95 dB/cm in a 1.25–2.1 μm wavelength range, while the corresponding loss of y-polarized core mode is lower than 0.21 dB/cm. The high polarization extinction ratio is obtained at the communication wavelength of 1.3 μm, where the losses of x- and y-polarized core modes are 433.25 and 0.0064 dB/cm, respectively. When the fiber length is 1 mm, a broad bandwidth of 850 nm with an extinction ratio lower than −20 dB is obtained. Moreover, the proposed single polarization filter exhibits a better tolerance of realistic fabrication. |
| Databáze: | OpenAIRE |
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