Title :
Angle-Tuned Filters From Cholesteric Liquid-Crystal for Visible Wavelength-Division Multiplexing
Author :
Silva, V.N.H. ; Sathaye, Kedar ; Dupont, Laurent ; Stoenescu, Daniel ; Medeiros, Dianne S. V. ; Ribeiro, R.M. ; Barbero, A.P.L.
Author_Institution :
Opt. Dept., Telecom Bretagne, Brest, France
Abstract :
This letter describes the development of notch filters and dichroic beam-splitters intended for short-haul links based on wavelength division multiplexing over poly-methyl-methacrylate polymer optical fibers. The filter was built using two cholesteric liquid crystal (CLC) cells configured in reflection mode where the incident light is reflected twice, by the first and the second CLC. The filter reflection is greater than 80% for the desired wavelengths and it is polarization insensitive.
Keywords :
cholesteric liquid crystals; light reflection; liquid crystal devices; notch filters; optical beam splitters; optical communication equipment; optical fibre communication; optical filters; optical links; optical materials; optical polymers; wavelength division multiplexing; CLC cells; angle-tuned filters; cholesteric liquid crystal; dichroic beamsplitters; notch filters; polarization insensitive filter; poly-methyl-methacrylate polymer optical fibers; reflection mode; short-haul links; visible wavelength-division multiplexing; Filtering theory; Optical fiber filters; Optical fibers; Optical reflection; Wavelength division multiplexing; Cholesteric liquid crystal; PMMA polymer optical fiber; WDM; filters; multiplexing; residential networks;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2294808
