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Highly tunable large-core single-mode liquid-crystal photonic bandgap fiber

T. T. Alkeskjold ; J. Lægsgaard ; A. Bjarklev ; David S. Hermann (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; J. Broeng ; J. Li ; S. Gauza ; S. T. Wu
Applied Optics (00036935 ). Vol. 45 (2006), 10, p. 2261-2264.
[Artikel, refereegranskad vetenskaplig]

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.



Denna post skapades 2009-12-01.
CPL Pubid: 102550

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Fotonik

Ämnesområden

Teknisk fysik

Chalmers infrastruktur