Integrating liquid crystal based optical devices in photonic crystal fibers

  title={Integrating liquid crystal based optical devices in photonic crystal fibers},
  author={Thomas Tanggaard Alkeskjold and Lara Scolari and Danny Noordegraaf and Jesper L{\ae}gsgaard and Johannes Weirich and Lei Wei and Giovanni Tartarini and Paolo Bassi and Sebastian Gauza and Shin‐Tson Wu and Anders Overgaard Bjarklev},
  journal={Optical and Quantum Electronics},
Liquid crystal photonic bandgap fibers form a versatile and robust platform for designing optical fiber devices, which are highly tunable and exhibit novel optical properties for manipulation of guided light. We present fiber devices for spectral filtering and polarization control/analysis. 
Hybrid photonic-crystal fiber
Optical fibers provide much more than a means to transport light between different locations. This article reviews how integration of functional fluid, solid, and gaseous materials in photonic
Liquid Crystal Devices for Optical Communications and Sensing Applications
This thesis is focussed on the design and development of liquid crystal based tunable photonic devices for applications in optical communications and optical sensing, with an emphasis on all-fiber
Liquid crystal parameter analysis for tunable photonic bandgap fiber devices.
This contribution investigates how the bandgap tenability is determined by the parameters of the liquid crystals, which enables to identify suitable liquid crystals for tunable photonic bandgap fiber devices.
Polarizing and Depolarizing Optical Effects in Photonic Liquid Crystal Fibers
The paper describes polarization phenomena occurring in photonic crystal fibers infiltrated with liquid crystals and presents latest experimental results of the influence of temperature, external
Liquid crystal filled photonic crystal fibers for voltage sensing applications
The usage of Nematic Liquid Crystal (NLC) infiltrated Photonic Crystal Fibers (PCFs) for a low cost, all-fiber, high voltage sensing device is experimentally demonstrated. The infiltrated PCF which
Guided-wave liquid-crystal photonics.
The state of the art in the field of liquid-crystal tunable guided-wave photonic devices, a unique type of fill-once, molecular-level actuated, optofluidic systems, are reviewed, with focus on key-applications for photonics.
Holographic polymer-dispersed liquid crystal Bragg grating integrated inside a solid core photonic crystal fiber.
Experimental data presented here demonstrate that the liquid crystal inclusions of the PLC-FBG lead to high thermal and bending sensitivities.
Electro-optical properties of photo-aligned photonic ferroelectric liquid crystal fibres
ABSTRACT Electro-optical and spectral studies of isotropic photonic crystal fibre (PCF) infiltrated with photo-aligned ferroelectric liquid crystal (FLC) under influence of external electric field
Infiltration liquid crystal in microstructured polymer optical fibers
  • W. Yuan, L. Wei, O. Bang
  • Materials Science, Physics
    CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference
  • 2009
Microstructured polymer optical fibres (mPOFs) have attracted significant interests, mainly because fabrication techniques have allowed novel structures to be made at low temperature with polymers,


Electrically tunable photonic bandgap guidance in a liquid-crystal-filled photonic crystal fiber
Tunable bandgap guidance is obtained by filling the holes of a solid core photonic crystal fiber with a nematic liquid crystal and applying an electric field. The response times are measured and
Electrically tunable liquid-crystal photonic crystal fiber
Tunable light switch using a photonic crystal fiber filled with nematic liquid crystal is demonstrated. The original band-gap-guiding fiber structure was transformed to a total internal
Highly tunable large core single-mode liquid crystal photonic bandgap fiber
We demonstrate a highly tunable photonic bandgap fiber, which has a core diameter of 25 mm, and a bandgap tuning sensitivity of 27 nm/degC at room temperature. The insertion loss is estimated to be
Electrically controlled broadband liquid crystal photonic bandgap fiber polarimeter.
A liquid crystal photonic bandgap fiber based polarizer integrated in a double silicon v-groove assembly that can be electrically controlled as well as switched on and off.
Photonic band gap guidance in optical fibers
A fundamentally different type of optical waveguide structure is demonstrated, in which light is confined to the vicinity of a low-index region by a two-dimensional photonic band gap crystal. The
All-optical modulation in dye-doped nematic liquid crystal photonic bandgap fibers.
An all-optical modulator is demonstrated, which utilizes a pulsed 532nm laser to modulate the spectral position of the bandgaps in a photonic crystal fiber infiltrated with a dye-doped nematic liquid crystal.
Polarization Properties of Elliptical-Hole Liquid Crystal Photonic Bandgap Fibers
The characteristics of triangular photonic crystal fibers (PCFs) with elliptical holes filled with a nematic liquid crystal (LC) are investigated theoretically. The analysis that is carried out using
Designing a photonic bandgap fiber for thermo-optic switching
The performance of a thermo-optic switch based on a photonic crystal fiber (PCF) infiltrated with a liquid crystal is investigated numerically for various fiber designs. Operation near a
Continuously tunable devices based on electrical control of dual-frequency liquid crystal filled photonic bandgap fibers.
An electrically controlled photonic bandgap fiber device obtained by infiltrating the air holes of a photonic crystal fiber with a dual-frequency liquid crystal with pre-tilted molecules that enables electrical control of the spectral position of the bandgaps towards both shorter and longer wavelengths in the same device.
Microstructured optical fiber devices.
Several applications of microstructured optical fibers are presented and their modal characteristics are studied by using Bragg gratings inscribed into photosensitive core regions designed into the air-silica microstructure to enable a number of functionalities including tunability and enhanced nonlinearity.