Abstract
An etched long-period fiber grating with an outer liquid-crystal cladding capable of polarization-isolated electrical modulation, is described. A 5-dB transmission-dip modulation with 4-dB polarization isolation can be obtained at 225 V. The reduction in fiber diameter by a chemical etching process leads to an improvement in the long-range ordering of liquid-crystal molecules and a reduction in the controlling voltage. In addition, the experimental results are supported by numerical Simulation.
Original language | English |
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Pages (from-to) | 964-968 |
Number of pages | 5 |
Journal | Optical Engineering |
Volume | 42 |
Issue number | 4 |
DOIs | |
State | Published - Apr 2003 |
Keywords
- Electro-optics
- Fiber characteristics
- Fiber optics
- Filters
- Gratings
- Liquid crystals