Title :
Polarisation-independent lightwave switch/modulator at 820 and 1300 nm for fibre-optic systems
Author :
Chang, Gee-Kung ; Patel, J.S. ; Nelson, T.J. ; Schumacher, Hermann ; Leblanc, Herve P.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
A new lightwave device, using electro-optic properties of ferroelectric liquid crystals, has been demonstrated as an optical switch and modulator for duplex fibre-optic systems. This switching and modulation of light are independent of the polarisation state of the input beam. High extinction ratios (>or=13.5 dB) and low device insertion losses (\n\n\t\t
Keywords :
electro-optical devices; fibre optics; liquid crystal devices; optical communication equipment; optical fibres; optical modulation; optical switches; 1300 nm; 3 dB; 820 nm; WDM system; duplex fibre-optic systems; duplex voice-band communications; electro-optic properties; ferroelectric liquid crystals; fibre-optic systems; low device insertion losses; optical clock signals; optical modulator; optical switch; polarisation-independent device;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890088
