title: Photonic crystal fiber polarization rotator based on the topological Zeeman effect.
abstract: A photonic crystal fiber polarization rotator (PR) is proposed based on the topological Zeeman effect. The proposed PR is achieved by permanently twisting a segment of sixfold symmetric photonic crystal fiber with a matched length, and under the optimized parameters, the PR can offer an almost 100% polarization conversion ratio in the wavelength of 1.55-μm band (∼200  nm bandwidth) and a compact length of about 157 μm based on the numerical simulation result of the full-vector finite-element method. The proposed in-line PCF PR can be easily fabricated based on state-of-art PCF manufacturing, and it is a potential inexpensive candidate in the application of modern communication systems.
authors.forename: Lei
authors.initials: L
authors.lastname: Chen
authors.forename: Wei-Gang
authors.initials: WG
authors.lastname: Zhang
authors.forename: Tie-Yi
authors.initials: TY
authors.lastname: Yan
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.forename: Jonathan
authors.initials: J
authors.lastname: Sieg
authors.forename: Biao
authors.initials: B
authors.lastname: Wang
authors.forename: Quan
authors.initials: Q
authors.lastname: Zhou
authors.forename: Li-Yu
authors.initials: LY
authors.lastname: Zhang