Next Article in Journal
Emerging Perovskite Nanocrystals-Enhanced Solid-State Lighting and Liquid-Crystal Displays
Next Article in Special Issue
Design of Polarization Splitter via Liquid and Ti Infiltrated Photonic Crystal Fiber
Previous Article in Journal / Special Issue
Trapping and Optomechanical Sensing of Particles with a Nanobeam Photonic Crystal Cavity
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Crystals 2019, 9(2), 58;

Polarization Converter Based on Square Lattice Photonic Crystal Fiber with Double-Hole Units

Department of Electrical, Electronics and Information Engineering, Kanagawa University, Yokohama 221-8686, Japan
Division of Information and Electronic Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan
Department of Opt-Electronic System Engineering, Chitose Institute of Science and Technology, Chitose 066-8655, Japan
Author to whom correspondence should be addressed.
Current address: 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan.
Received: 17 December 2018 / Revised: 18 January 2019 / Accepted: 21 January 2019 / Published: 22 January 2019
(This article belongs to the Special Issue Sonic and Photonic Crystals)
Full-Text   |   PDF [2093 KB, uploaded 31 January 2019]   |  


In this study, a novel polarization converter (PC) based on square lattice photonic crystal fiber (PCF) is proposed and analyzed. For each square unit in the cladding, two identical circular air holes are arranged symmetrically along the y = x axis. With the simple configuration structure, numerical simulations using the FDTD analysis demonstrate that the PC has a strong polarization conversion efficiency (PCE) of 99.4% with a device length of 53 μ m, and the extinction ratio is −21.8 dB. Considering the current PCF fabrication technology, the structural tolerances of circular hole size and hole position have been discussed in detail. Moreover, it is expected that over the 1.2∼1.7 μ m wavelength range, the PCE can be designed to be better than 99% and the corresponding extinction ratio is better than 20 dB . View Full-Text
Keywords: polarization converter; photonic crystal fiber; square lattice polarization converter; photonic crystal fiber; square lattice

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Zhang, Z.; Tsuji, Y.; Eguchi, M.; Chen, C.-P. Polarization Converter Based on Square Lattice Photonic Crystal Fiber with Double-Hole Units. Crystals 2019, 9, 58.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top