Generation of potential wells used for quantum codes transmission via a TDMA network communication system

Abstract

This paper proposes a technique of quantum code generation using optical tweezers. This technique uses a microring resonator made of nonlinear fibre optics to generate the desired results, which are applicable to Internet security and quantum network cryptography. A modified add/drop interferometer system called PANDA is proposed, which consists of a centred ring resonator connected to smaller ring resonators on the left side. To form the multifunction operations of the PANDA system—for instance, to control, tune and amplify—an additional Gaussian pulse is introduced into the add port of the system. The optical tweezers generated by the dark soliton propagating inside the PANDA ring resonator system are in the form of potential wells. Potential well output can be connected to the quantum signal processing system, which consists of a transmitter and a receiver. The transmitter is used to generate high‐capacity quantum codes within the system, whereas the receiver detects encoded signals known as quantum bits. Therefore, an entangled photon pair can be generated and propagated via an optical communication link such as a time division multiple access system. Here, narrower potential wells with a full‐width half‐maximum of 3.58 and 9.57 nm are generated at the through and drop ports of the PANDA ring resonator system, respectively, where the amplification of the signals occurs during propagation inside the system. Copyright © 2013 John Wiley & Sons, Ltd.

Mathematics of Soliton Transmission in Optical Fiber

“…For the second coupler of the add/drop system [82,83], E 0r and E 0L are the light fields circulated components of the nanoring radii and R r and R L are the coupled rings into the right and left sides of the add/drop optical filter system, respectively. Transmitted and circulated components of the light fields in the right nanoring, R r are given by (2.74)…”

IEEE 802.15.3c WPAN Standard Using Millimeter Optical Soliton Pulse Generated by a Panda Ring Resonator

“…L D is the dispersion length of the soliton pulse [42], where the carrier frequency of the signal is ! 0 .…”

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“…The dispersion length of the soliton pulse can be defined as L D = T 2 0 /|β 2 |, where the frequency carrier of the soliton is ω 0 . The intensity of soliton peak is (|β 2 /ΓT 2 0 |), where T 0 is representing the initial soliton pulse propagation time [26], [27]. A balance should be achieved between the dispersion length (L D ) and the nonlinear length (L N L = 1/Γφ N L ), where Γ = n 2 ×k 0 , is the length scale over which disperse or nonlinear effects causes the beam becomes wider or narrower.…”