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Proceedings Paper

All-optically switchable photonic crystal fiber
Author(s): Yu-chang Lin; Sheng-Che Huang; Vincent K. S. Hsiao
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Paper Abstract

We have achieved an all-optical tuning in photonic crystal fiber (PCF) by filling the photoresponsive liquid crystal (LC) into the air-hole cladding. The photo-induced phase transformation of the photoresponsive LC modulates the effective refractive index of the photoresponsive LC-filled air-hole cladding, thereby creating an optically tunable environment. Under the laser irradiation the output intensity of guided light can be modulated by the photoresponsive LC-filled photonic bandgap structure. The tuning behavior of the guided light is independent on the polarization direction by using the linear-polarized He-Ne laser as probe. We also demonstrate the potential use of photoresponsive LC-filled PCF in all-optical communication device using an optical spectrum of wide bandwidth amplified from an erbium-doped fiber amplifier (EDFA) system.

Paper Details

Date Published: 21 August 2009
PDF: 7 pages
Proc. SPIE 7420, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III, 74200Y (21 August 2009); doi: 10.1117/12.825044
Show Author Affiliations
Yu-chang Lin, National Chi Nan Univ. (Taiwan)
Sheng-Che Huang, National Chi Nan Univ. (Taiwan)
Vincent K. S. Hsiao, National Chi Nan Univ. (Taiwan)


Published in SPIE Proceedings Vol. 7420:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications III
Shizhuo Yin; Ruyan Guo, Editor(s)

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