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10 items by relevance
1 PhD Thesis

Optical devices based on liquid crystal photonic bandgap fibers

Alkeskjold, Thomas Tanggaard

Technical University of Denmark — 2005

the waveguiding mechanism of LC filled PCFs. The principle of tunable fibers based on LCs is thereafter discussed and an alignment and coating study of LC in capillaries is presented. Next, the Liquid Crystal Photonic BandGap (LCPBG) fiber is presented and the waveguiding mechanism is analyzed through plane-wave

Year: 2005

Language: English

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amjebodgpnlchi fk
2 Journal article

Optically fed microwave true-time delay based on a compact liquid-crystal photonic-bandgap-fiber device

Wei, Lei; Xue, Weiqi; Chen, Yaohui; Alkeskjold, Thomas Tanggaard; Bjarklev, Anders

Optics Letters — 2009, Volume 34, Issue 18, pp. 2757-2759

An electrically tunable liquid-crystal, photonic-bandgap-fiber-device-based, optically fed microwave, true-time delay is demonstrated with the response time in the millisecond range. A maximum electrically controlled phase shift of around 70 degrees at 15 GHz and an averaged 12.9 ps true-time delay

Year: 2009

Language: English

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