Highly tunable large-core single-mode liquid-crystal photonic bandgap fiber
Journal article, 2006

We demonstrate a highly tunable photonic bandgap fiber, which has a large-core diameter of 25 μm and an effective mode area of 440 μm 2. The tunability is achieved by infiltrating the air holes of a photonic crystal fiber with an optimized liquid-crystal mixture having a large temperature gradient of the refractive indices at room temperature. A bandgap tuning sensitivity of 27 nm/°C is achieved at room temperature. The insertion loss is estimated to be less than 0.5 dB and caused mainly by coupling loss between the index-guided mode and the bandgap-guided mode.


T. T. Alkeskjold

Technical University of Denmark (DTU)

J. Lægsgaard

Technical University of Denmark (DTU)

A. Bjarklev

Technical University of Denmark (DTU)

David Hermann

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

J. Broeng

NKT Photonics A/S

J. Li

University of Central Florida

S. Gauza

University of Central Florida

S. T. Wu

University of Central Florida

Applied Optics

1539-4522 (eISSN)

Vol. 45 10 2261-2264

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Other Engineering and Technologies



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