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ABSTRACT: In this letter, a compact electrically controlled broadband liquid crystal (LC) photonic bandgap fiber polarizer is designed and fabricated. A good fiber coupling quality between two single-mode fibers and one 10-mm-long LC-filled photonic crystal fiber is obtained and protected by using SU-8 fiber fixing structures during the device assembly. The total insertion loss of this all-in-fiber device is 2.7 dB. An electrically tunable polarization extinction ratio of 21.3 dB is achieved with 45deg rotatable transmission axis as well as switched on and off in the wavelength range of 1300-1600 nm.
IEEE Photonics Technology Letters 12/2009; · 2.19 Impact Factor
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ABSTRACT: A compact tunable waveplate based on negative dielectric liquid crystal photonic bandgap fibers is presented. The birefringence can be tuned electrically to work as a quarter-wave or a half-wave plate in the wavelength range 1520 nm-1580 nm.
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on; 07/2009
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ABSTRACT: A dual-function all-in-fiber device based on negative dielectric liquid crystal photonic bandgap fibers is presented. This device can work both as an electrically tunable waveplate in the range 1520 nm-1580 nm, and as a polarimeter at 1310 nm.
Optical Fiber Communication & Optoelectronic Exposition & Conference, 2008. AOE 2008. Asia; 12/2008
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ABSTRACT: We infiltrate photonic crystal fibers with negative dielectric liquid crystals. 400 nm bandgap shift is obtained in the range 22degC-80degC and 119 nm shift of the long-wavelength bandgap edge is achieved by applying a voltage of 200V<sub>rms</sub>.
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on; 06/2008
