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Optical Engineering

Broad bandwidth and 600 μm length photonic crystal fiber polarization filter at the communication window of 1.55 μm
Author(s): Zhen Zhang; Shu-guang Li; Qiang Liu; Shuhuan Zhang; Yujun Wang; Junjun Wu
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Paper Abstract

A broad bandwidth and 600-μm length photonic crystal fiber polarization filter at the communication window of 1.55  μm is proposed. The physical parameters are analyzed by the finite element method. In the structure, the loss is 705.81  dB/cm for y-polarized mode and 24.06  dB/cm for x-polarized mode at the wavelength of 1.55  μm; the y-polarized mode will be filtered out because of this property. The bandwidth of an extinction ratio (ER) better than −20  dB is 65 nm when the filter length is 600  μm, and the ER is −41  dB at the communication wavelength of 1.55  μm. The filter structure is simple and easy to produce, and it can be used to produce a single-polarization filter.

Paper Details

Date Published: 19 February 2018
PDF: 5 pages
Opt. Eng. 57(2) 027105 doi: 10.1117/1.OE.57.2.027105
Published in: Optical Engineering Volume 57, Issue 2
Show Author Affiliations
Zhen Zhang, Yanshan Univ. (China)
Shu-guang Li, Yanshan Univ. (China)
Qiang Liu, Yanshan Univ. (China)
Shuhuan Zhang, Yanshan Univ. (China)
Yujun Wang, Yanshan Univ. (China)
Junjun Wu, Yanshan Univ. (China)


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