@inproceedings{d4ed0b88e227468e8ad18509f239e081,
title = "A review of the recent advances on an all-fiber electronically tunable wavelength filter",
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.",
author = "Shizhuo Yin and Reichard, \{Karl Martin\} and Lee, \{J. E.\} and Q. Chen and Ditto, \{D. H.\} and J. Mazurowski and M. Hackert and Qiming Zhang",
year = "2006",
doi = "10.1117/12.679874",
language = "English (US)",
isbn = "0819463930",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Photorefractive Fiber and Crystal Devices",
note = "Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII ; Conference date: 16-08-2006 Through 17-08-2006",
}