Active control of group velocity by use of folded dielectric axes structures

Kun Liu; Wenjie Lu; Yuping Chen; Xianfeng Chen
August 2010
Applied Physics Letters;8/16/2010, Vol. 97 Issue 7, p071104
Academic Journal
A method was demonstrated for slowing light signals in electro-optical periodically poled lithium niobate. A forbidden band gap can be formed when the transverse electric field exceeds zero. The group velocity of a light near the band gap can be delayed via changes in electric field strength or wavelength, with a maximum delay of 20 ns in the experiment, which is attractive for electro-optical signal processing and all-optical signal processing.


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