Abstract

We design and fabricate an on-chip tunable long-period grating device by integrating a liquid crystal photonic bandgap fiber on silicon structures. The transmission axis of the device can be electrically rotated in steps of 45° as well as switched on and off with the response time in the millisecond range. The strength of the loss peak is controlled electrically, and the spectral position of the loss peak is thermally tunable. This compact design results in a stable grating and permits this device to be more easily applied in practical systems.

© 2009 Optical Society of America

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

Lei Wei, Weiqi Xue, Yaohui Chen, Thomas Tanggaard Alkeskjold, and Anders Bjarklev
Opt. Lett. 34(18) 2757-2759 (2009)

Electrically and mechanically induced long period gratings in liquid crystal photonic bandgap fibers

Danny Noordegraaf, Lara Scolari, Jesper Lægsgaard, Lars Rindorf, and Thomas Tanggaard Alkeskjold
Opt. Express 15(13) 7901-7912 (2007)

Continuously tunable all-in-fiber devices based on thermal and electrical control of negative dielectric anisotropy liquid crystal photonic bandgap fibers

Lei Wei, Lars Eskildsen, Johannes Weirich, Lara Scolari, Thomas Tanggaard Alkeskjold, and Anders Bjarklev
Appl. Opt. 48(3) 497-503 (2009)

Electrically controlled broadband liquid crystal photonic bandgap fiber polarimeter

Thomas Tanggaard Alkeskjold and Anders Bjarklev
Opt. Lett. 32(12) 1707-1709 (2007)

Electrically tunable Yb-doped fiber laser based on a liquid crystal photonic bandgap fiber device

Christina B. Olausson, Lara Scolari, Lei Wei, Danny Noordegraaf, Johannes Weirich, Thomas T. Alkeskjold, Kim P. Hansen, and Anders Bjarklev
Opt. Express 18(8) 8229-8238 (2010)