KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Search Results

Now showing 1 - 8 of 8

Some of the metrics are blocked by your
consent settings
Multi-wavelength bits generation by mesh ring resonator system for optical communication security application
(2014-01-01)
Youplao, P.
;
Pornsuwancharoen, N.
;
Yupapin, P. P.
We propose a new design of the mesh ring resonator system device using the nonlinear behaviors of optical pulse propagation in the ring resonator system, where the disadvantages of nonlinearity of light pulses propagating in the propose system becomes beneficial. The simulation results obtained have shown the chaotic output signals that can be generated by Kerr effects in the ring resonator system, where the bits logic decision signals can be controlled by using the specify system parameters, the ring radii, the coupling coefficient and the threshold outputs intensity, of the proposed simulation system. The potential of using such the mesh ring resonator system device for optical communication security application is performed and discussed. © (2014) Trans Tech Publications, Switzerland.
Some of the metrics are blocked by your
consent settings
Multi layer QKD protocol using correlated photon of dark soliton array in a wavelength router
(2012-12-01)
Youplao, P.
;
Mitatha, S.
;
Yupapin, P. P.
We propose a new protocol of the multi layers quantum router generated by using the multiplexed dark soliton pulses within a microring resonator system. Initially, the multi dark solitons are input into a microring system, where the dynamic dark solitons are controlled and the required quantum states generated. The multivariable quantum key distribution can be formed by using the correlated photon pair of each dark soliton center wavelengths, where the quantum keys (codes) are generated and recovered via the quantum processor in the wavelength router. In application, the secure information with high capacity can be performed incorporating the quantum keys via the quantum processor in the multivariable quantum router.
Some of the metrics are blocked by your
consent settings
Privacy amplification of QKD protocol in a quantum router
(2012-01-01)
Chaiyasoonthorn, S.
;
Youplao, P.
;
Mitatha, S.
;
Yupapin, P. P.
We propose a new system of quantum cryptography for QKD protocol with privacy amplification for internet security using Gaussian pulse propagating within a nonlinear ring resonator system, quantum processor and a wavelength router. To increase the channel capacity and security, the multiplexer is operated incorporating a quantum processing unit via an optical multiplexer. The transmission part can be used to generate the high capacity quantum codes within the series of micro ring resonators and an add/drop filter. The receiver part can be communicated by using the quantum key (quantum bit, qubit) via a wavelength router and quantum processors. The reference states can be recognized by using the cloning unit, which is operated by the add/drop filter, where the communication between Alice and Bob can be performed. Results obtained have shown that the correlated photons can be generated and formed the entangled photon pair, which is allowed to form the secret key between Alice and Bob. In application, the embedded system within the computer processing unit is available for quantum computer. © 2010 Published by Elsevier Ltd.
Some of the metrics are blocked by your
consent settings
New WDM bands using a Gaussian pulse within a nano-waveguide
(2011-08-01)
Youplao, P.
;
Pornsuwancharoen, N.
;
Mitatha, S.
;
Yupapin, P. P.
The new optical communication bandwidths (wavelength bands) using a Gaussian pulse propagating within a nonlinear microring resonator system is proposed. The Gaussian input pulses, for instance, when the input pulses of the common lasers with center wavelengths from 400 to 1500 nm are used, the required output wavelength bands can be obtained by controlling the coupling coefficients of the add/drop filter. Results obtained have shown that more available wavelength bands from the different center wavelengths can be generated, which can be used to form new dense wavelength division multiplexing bands. The novelty of the work is that the expansion of communication bands, especially, when the center wavelength is at 1300 nm can be obtained by using a common laser pulse, whereas the amplified and non-dispersive light source can be formed. © 2010 Elsevier GmbH. All rights reserved.
Some of the metrics are blocked by your
consent settings
Multi-wavelength generation of an extremely narrow pulse using a ring resonator system for bio-cells microscopy
(2010-09-01)
Pornsuwancharoen, N.
;
Youplao, P.
;
Sangwara, N.
;
Yupapin, P. P.
We propose a new system of an extremely narrow light pulse generation for optical microscopy applications using a nonlinear ring resonator system. The system consists of one nano and three micro-optical ring resonators, which can be used to generate the 50 fm (10<sup>-15</sup> m) optical spectral width at the broad wavelength spectrum. By using a soliton pulse with a pulse width of 50 ps, peak power of 1 W, center wavelength at 550 nm, and after the soliton pulse is launched into the first ring device, the chaotic pulses are generated within the first ring. The chaotic filtering behaviors are performed by using the second and the third ring devices, whereas the extremely short pulse, i.e. narrow spectral width, can be generated by using the extended nano-ring device. The broad spectrum of the harmonic waves is generated and filtered, which is of use in optical tomography. Results obtained have shown that the generation of the broad spectrum of short pulse with width 100 fm and peak power 60 mW is achieved. The possibility of using such a system for nondestructive bio-cells microscopy, for visualizing bio-cells and for bio-cells tomography is also discussed in detail. © 2009 Elsevier GmbH. All rights reserved.
Some of the metrics are blocked by your
consent settings
Enhanced WDM using a Gaussian pulse within a nano-waveguide
(2010-05-05)
Youplao, P.
;
Vongchumyen, C.
;
Mitatha, S.
;
Yupapin, P. P.
The new optical communication bandwidths (wavelength bands) using a Gaussian pulse propagating within a nonlinear microring resonator system is proposed. The Results obtained have shown that more available wavelength bands from the different center wavelengths can be generated, which can be used to form new dense wavelength division multiplexing bands. The novelty of the work is that the expansion of communication bands, especially, when the center wavelengths at 400 and 1,400 nm can be obtained by using a common laser pulse, whereas the amplified and non-dispersive light source can be formed. ©2010 IEEE.
Some of the metrics are blocked by your
consent settings
Novel optical trapping tool generation and storage controlled by light
(2010-01-01)
Youplao, P.
;
Phattaraworamet, T.
;
Mitatha, S.
;
Teeka, C.
;
Yupapin, P. P.
We propose a novel system of an optical trapping tool using a dark-bright soliton pulse-propagating within an add/drop optical filter. The multiplexing signals with different wavelengths of the dark soliton are controlled and amplified within the system. The dynamic behavior of dark bright soliton interaction is analyzed and described. The storage signal is controlled and tuned to be an optical probe which can be configured as the optical tweezer. The optical tweezer storage is embedded within the add/drop optical filter system. By using some suitable parameters, we found that the tweezers storage time of 1.2 ns is achieved. Therefore, the generated optical tweezers can be stored and amplified within the design system. In application, the optical tweezers can be stored and trapped light/atom, which can be transmitted and recovered by using the proposed system. © 2010 World Scientific Publishing Company.
Some of the metrics are blocked by your
consent settings
Novel nanoscale signal processing and networking via a wavelength router
(2010-01-01)
Youplao, P.
;
Mitatha, S.
;
Yupapin, P. P.
This paper presents the very fascinating simulation results of light pulse traveling within a ring resonator system that have shown the unexpected results with various applications. The design system consists of a nonlinear microring/nanoring resonator system incorporating an add/drop filter. The proposed fabricated material used is InGaAsP/InP, which can provide the required output behaviors. Three different forms of input light pulses are Gaussian pulse, dark and bright soliton, whereas the suitable simulation parameters are input power, pulse width, ring radii and the material refractive indices. Three different forms of the results have been interpreted, whereas the dominants behaviors are such as Gaussian soliton, multisoliton and tunable dark soliton, and the potential applications for new laser sources, new communication bands, dynamic optical tweezers and high frequency source THz technology. The use of the proposed system incorporating a nanoscale communication and networking via wavelength router is discussed.

KMITL

Browse

Filters

Settings

Sort By

Results per page

Search Results