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Integrated optics using liquid crystals

Integrated optics using liquid crystals

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This chapter shows how liquid crystals (LC) and their optical properties can be used to make reconfigurable optical waveguides, electro-optical and all-optical devices integrated on various substrate materials such as silicon, silicon nitride, polymers and glass.

Chapter Contents:

  • 10.1 Optical properties of liquid crystals
  • 10.1.1 Optical anisotropy and refractive index
  • 10.1.2 Electro-optic effect in LC and molecular reorientation
  • 10.2 Switchable optical waveguides with liquid crystal core in silicon
  • 10.2.1 Fabrication technology
  • 10.2.2 Electro-optical and all-optical switching
  • 10.3 Photonic devices with liquid crystal core in polydimethylsiloxane
  • 10.3.1 Fabrication of LC:PDMS waveguides
  • 10.3.2 LC:PDMS-based photonic switches and demultiplexers
  • 10.4 Bragg reflectors based on liquid crystals
  • 10.4.1 Tuneable optical filters using composite gratings on glass
  • Electro-optic filter
  • All-optical filter
  • 10.4.2 Guided-wave tuneable Bragg gratings
  • Coplanar electrode configuration
  • Top–bottom electrode configuration
  • 10.5 Integrated optic devices based on a liquid crystal overlayer
  • 10.6 Conclusions
  • References

Inspec keywords: electro-optical devices; liquid crystal devices; silicon; polymers; silicon compounds; integrated optics; liquid crystals; optical waveguides; glass

Other keywords: optical properties; integrated optics; polymers; silicon nitride; glass; electro-optical devices; liquid crystals; all-optical devices; Si; reconfigurable optical waveguides; substrate materials; SiN; silicon

Subjects: Integrated optics; Electro-optical devices; Optical waveguides and couplers; Liquid crystal devices; Optical waveguides; Display materials; Integrated optics; Liquid crystals (optical materials)

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