Title :
Large-scale holographic switch with a ferroelectric liquid-crystal spatial light modulator
Author :
Yamazaki, Hirofumi ; Matsunaga, Tohru ; Fukushima, Seiji ; Kurokawa, Takashi
Author_Institution :
NTT Network Service Syst. Labs., Musashino, Japan
Abstract :
Holographic switches are suitable for large switching systems, such as those used in subscriber networks. In our switch, a hologram recording medium is an optically-addressed FLC-SLM, which can record a binary hologram. When voltage is applied, it records the intensity distribution of the write light and retains the written pattern even when the voltage is turned off. We have demonstrated 4×1204 switching to show that our switch is suitable for large-scale switching
Keywords :
electro-optical modulation; electro-optical switches; ferroelectric liquid crystals; holographic optical elements; liquid crystal devices; optical fibre subscriber loops; photonic switching systems; spatial light modulators; 4×1204 switching; binary hologram; ferroelectric liquid-crystal spatial light modulator; hologram recording medium; intensity distribution; large-scale holographic switch; optically-addressed FLC-SLM; subscriber networks; write light; written pattern; Ferroelectric materials; Holography; Large-scale systems; Laser beams; Light sources; Lighting control; Optical control; Optical modulation; Optical switches; Phased arrays;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1997. LEOS '97 10th Annual Meeting. Conference Proceedings., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3895-2
DOI :
10.1109/LEOS.1997.630552
