Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 36,
  • Issue 16,
  • pp. 3434-3443
  • (2018)

Optimization of Photonic Crystal Polarization Handling Devices Using Trust Region Algorithms

Not Accessible

Your library or personal account may give you access

Abstract

In this paper, the trust region optimization techniques are used for the design of photonic crystal polarization handling devices. The trust region algorithms are based on quadratic surrogate models with no derivative requirements to replace the objective function in the optimization process. A new box constrained trust region algorithm is employed for the first time to the best of our knowledge along with full vectorial finite difference methods to optimize a passive polarization rotator (PR) based on silica photonic crystal fiber (PCF). The reported PCF PR has a device length of 204 μm with nearly 100% polarization conversion ratio at operating wavelength λ of 1.55 μm. Further, an unconstrained trust region (UTR) algorithm is used for optimizing the coupling characteristics of a soft glass nematic liquid crystal (NLC) PCF coupler. The optimized coupler can separate the two polarized beams with compact length of 380 μm and low crosstalk at λ = 1.55 μm. Furthermore, a polarization independent NLC-PCF multiplexer–demultiplexer is proposed for wavelengths of 1.3 and 1.55 μm using the UTR technique with a compact device length of 475 μm and low crosstalk for the two polarization states.

© 2018 IEEE

PDF Article
More Like This
Ultrashort silica liquid crystal photonic crystal fiber polarization rotator

Mohamed Farhat O. Hameed and Salah S. A. Obayya
Opt. Lett. 39(4) 1077-1080 (2014)

Photonic crystal fiber polarization rotator based on the topological Zeeman effect

Lei Chen, Wei-Gang Zhang, Tie-Yi Yan, Li Wang, Jonathan Sieg, Biao Wang, Quan Zhou, and Li-Yu Zhang
Opt. Lett. 40(15) 3448-3451 (2015)

Ultrashort polarization rotator based on spiral photonic crystal fiber aided by liquid crystal

Lin Yu, Lei Chen, Weigang Zhang, Yunshan Zhang, Song Wang, Yanxin Zhang, Tieyi Yan, and Jiang Yang
Appl. Opt. 56(25) 7294-7298 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved