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Multi-stable variable optical attenuator based on a liquid crystal gel-filled photonic crystal fiber
- Source :
- Applied Optics; August 2014, Vol. 53 Issue: 22 pE51-E55, 5p
- Publication Year :
- 2014
-
Abstract
- This work demonstrates a multi-stable variable optical attenuator (VOA) that is fabricated by infiltrating a photonic crystal fiber (PCF) with a liquid crystal (LC) gel. Varying the cooling rate or biasing the electric field during gelation yields various degrees of scattering. Therefore, LC gel-filled PCFs with various transmittances can be realized. At a wavelength of 1550 nm, an attenuation rate of −33.4  dB/cm is obtained at a cooling rate of 30°C/min and a biasing voltage of 400 V during gelation. The proposed all-in-fiber VOA exhibits tunable attenuation and multiple stable states at room temperature.
Details
- Language :
- English
- ISSN :
- 1559128X and 21553165
- Volume :
- 53
- Issue :
- 22
- Database :
- Supplemental Index
- Journal :
- Applied Optics
- Publication Type :
- Periodical
- Accession number :
- ejs33281299