title: Photosensitivity-enabled dispersion controllability for quasi-phase-matching in photonic crystal fibers.
abstract: A novel photonic crystal fiber featured by concentric cores is proposed to induce dispersion controllability by photosensitivity. Chromatic dispersion can be changed from -1827 to 72 ps/nm/km with refractive index modulation of 4 x 10(-4) produced in Ge-doped regions in the fiber. Effective mode area of inner mode is as small as 6.4 mum(2). The proposed fiber enables to achieve quasi-phase-matched nonlinear parametric interaction in a single piece of photonic crystal fiber, by periodically alternating dispersion and compensating for phase mismatching caused by the dispersion.
authors: Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA. linzhang@usc.edu
authors: Lin
authors: L
authors: Zhang
authors: Ting
authors: T
authors: Luo
authors: Yang
authors: Y
authors: Yue
authors: Changyuan
authors: C
authors: Yu
authors: Alan E
authors: AE
authors: Willner