Steering between Bloch oscillation and dipole oscillation in parabolic optical waveguide arrays
JOSA B, Vol. 27, Issue 6, pp. 1299-1304 (2010)
http://dx.doi.org/10.1364/JOSAB.27.001299
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Abstract
We study the optical oscillations of supermodes in planar optical waveguide arrays with a parabolically graded propagation constant in individual waveguide interacting through nearest neighbor couplings. In these arrays, we have identified a transition between a symmetric dipole oscillation (DO) and a symmetry-breaking Bloch oscillation (BO) under appropriate conditions. There exist obvious correspondences between gradon localization and various optical oscillations. By virtue of an analog between the oscillations of optical system and that of a plane pendulum, we propose a shift of the graded profile to cause a transition from BO to DO. We confirm the optical transition by means of Hamiltonian optics, as well as by the field evolution of the supermodes. The results offer great potential applications in optical switching, which can be applied to design suitable optical devices.
© 2010 Optical Society of America
OCIS Codes
(130.2790) Integrated optics : Guided waves
(230.7370) Optical devices : Waveguides
(350.5500) Other areas of optics : Propagation
(130.4815) Integrated optics : Optical switching devices
ToC Category:
Integrated Optics
History
Original Manuscript: February 1, 2010
Revised Manuscript: April 15, 2010
Manuscript Accepted: April 19, 2010
Published: May 24, 2010
Citation
Ming Jie Zheng, Yun San Chan, and Kin Wah Yu, "Steering between Bloch oscillation and dipole oscillation in parabolic optical waveguide arrays," J. Opt. Soc. Am. B 27, 1299-1304 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-6-1299
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