A review of the recent advances on an all-fiber electronically tunable wavelength filter

Shizhuo Yin, Karl Martin Reichard, J. E. Lee, Q. Chen, D. H. Ditto, J. Mazurowski, M. Hackert, Qiming Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A unique all-fiber tunable filter is based on the combination of a single resonant band long period grating (LPG) and an electro-optic polymer second cladding layer. The single resonant band LPG is fabricated by etching the cladding of a 125 μm thick fiber and using ultraviolet (UV) illumination to write the grating. Once a single resonant band has been achieved, an ITO electrode is sputtered onto the thin silica cladding and then a polymer second cladding layer is applied. The refractive index of the polymer determines the resonant wavelength of the filter. After a second electrode is coated onto the second cladding, the polymer index is tuned by applying an external electric field. Recent modeling and experimentation has shown that a high index ITO inner electrode can increase the tuning range of the filter up to 10 times by inducing cladding mode transitions.

Original languageEnglish (US)
Title of host publicationPhotorefractive Fiber and Crystal Devices
Subtitle of host publicationMaterials, Optical Properties, and Applications XII
DOIs
StatePublished - Nov 13 2006
EventPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII - SAn Diego, CA, United States
Duration: Aug 16 2006Aug 17 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6314
ISSN (Print)0277-786X

Other

OtherPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII
CountryUnited States
CitySAn Diego, CA
Period8/16/068/17/06

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Yin, S., Reichard, K. M., Lee, J. E., Chen, Q., Ditto, D. H., Mazurowski, J., Hackert, M., & Zhang, Q. (2006). A review of the recent advances on an all-fiber electronically tunable wavelength filter. In Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII [63140Q] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6314). https://doi.org/10.1117/12.679874