Optical spin manipulation using dark‐bright soliton behaviors in a panda ring resonator

Abstract

A new concept of an optoelectronic spin generation using bright and dark soliton conversion behaviors within a modified optical add‐drop filters known as a PANDA ring resonator is proposed. The orthogonal solitons can be formed randomly within the system and detected simultaneously at the output ports. Under the resonant condition, the random transverse electric and magnetic fields of the solitons corresponding to the left‐hand and right‐hand photons can be generated. Whenever a photon is absorbed by an object, an angular momentum of either + ħ or –ħ is imparted to the object, in which two possible spin states known as optoelectronic spins are exhibited. Furthermore, the array of optoelectronic spins, i.e., many particles can be generated and controlled by using the proposed system, which can be used to form large scale spintronics applications. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:987–990, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26708

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“…The concept of orthogonal soliton spins can be assigned as optical dipole moment. Input and control signals in the form of dark and bright optical solitons are governed by equations ( 1) and ( 2) in [11][12][13], where A and z are the optical field amplitude and propagation distance, respectively. T is a soliton pulse propagation time in a frame moving at the group velocity, T=t−β 1z , where β 1 and β 2 are the coefficients of the linear and second-order terms of Taylor expansion of the propagation constant.…”