Full Width at Half Maximum (FWHM) Analysis of Solitonic Pulse Applicable in Optical Network Communication
IS Amiri,
H. Ahmad,
Hamza M. R. Al-Khafaji
Issue:
Volume 4, Issue 2-1, March 2015
Pages:
1-5
Received:
8 November 2014
Accepted:
12 November 2014
Published:
22 November 2014
Abstract: In this paper, we propose a system of microring resonator (MRR). This system uses a laser diode input which can be incorporated with an optical add/drop filter system. When light from the laser diode feedbacks to the fiber ring resonator, the pulses in the form of soliton can be generated by using appropriate fiber ring resonator parameters and also the input power. The filtering process occurs during the propagation of the pulse within the ring resonators. The full width at half maximum (FWHM) or bandwidth characterization of the pulse can be performed using the proposed system. Results obtained have established particular possibilities from the application such as optical network communication. The obtained results show the effects of coupling coefficients and ring radius on the bandwidth of the soliton pulse, where the graph of the FWHM versus the variable parameters such as the radius and coupling coefficient are presented.
Abstract: In this paper, we propose a system of microring resonator (MRR). This system uses a laser diode input which can be incorporated with an optical add/drop filter system. When light from the laser diode feedbacks to the fiber ring resonator, the pulses in the form of soliton can be generated by using appropriate fiber ring resonator parameters and als...
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A Review of Ultra-Short Soliton Pulse Generation Using InGaAsP/InP Microring Resonator (MRR) Systems
I. S. Amiri,
H. Ahmad,
Hamza M. R. Al-Khafaji
Issue:
Volume 4, Issue 2-1, March 2015
Pages:
6-17
Received:
8 December 2014
Accepted:
11 December 2014
Published:
27 December 2014
Abstract: System of microring resonators (MRRs) incorporating with an add/drop MRR system are presented to generate single and multi-temporal and spatial ultra-short soliton pulses applicable in optical soliton communications. The chaotic signals caused by the nonlinear condition could be generated and propagated within the system. The Kerr effect in the MRR system induces the nonlinearity condition. The proposed MRR systems are used to generate ultra-short soliton pulse within the system. Using the appropriate MRR parameters, ultra-short spatial and temporal signals are generated spreading over the spectrum. In this work, narrow soliton pulses could be localized within the proposed systems. Here soliton pulses of 0.7 ps, 0.83 fs and 19 pm are generated using series of MRRs connected to an add/drop MRR system. The nonlinear refractive index is n2=2.2 x 10-17 m2/W. Using the panda ring resonator system, the ultra-short soliton pulses with full width at half maximum (FWHM) and free spectral range (FSR) of 5 MHz and 2 GHz, were generated at the throughput port. The output signals pulses with FWHM of 10 MHz and FSR of 2 GHz could be obtained at the drop port of the system. As second results using this system, multi-carrier soliton pulses with FWHM=20 MHz are localized within this system with respect to 20,000 roundtrips of the input pulse. Localized optical tweezers could be generated using the half-Panda MRR system, where the peaks have FWHM and FSR of 8.9 nm and 50 nm respectively. The nonlinear refractive index was selected to n2=2.5×10-17 m2/W.
Abstract: System of microring resonators (MRRs) incorporating with an add/drop MRR system are presented to generate single and multi-temporal and spatial ultra-short soliton pulses applicable in optical soliton communications. The chaotic signals caused by the nonlinear condition could be generated and propagated within the system. The Kerr effect in the MRR...
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IP Routing by Phase Induced Intensity Noise Suppression in Optical CDMA Network
C. B. M. Rashidi,
S. A. Aljunid,
M. S. Anuar,
Hassan Yousif Ahmed
Issue:
Volume 4, Issue 2-1, March 2015
Pages:
18-21
Received:
4 November 2014
Accepted:
10 January 2015
Published:
11 February 2015
Abstract: In this paper, we explore avenues to efficiently use spectral amplitude coding optical code-division multiple-access (SAC-OCDMA) technique as a solution to the Internet protocol (IP) routing bottleneck in the global internet access. This work reveals for the first time the authors proposed a novel class of codes called the flexible cross correlation (FCC) code to enhance the network capacity and achieve the highest performance possible through phase induced intensity noise (PIIN) evasion and eliminating multiple access interference (MAI). The results indicated good performance, where the FCC code can accommodate 150 simultaneous users and has an optimum receive power Psr = -25 dBm at the receiving plant. It is truly proved that, from the theoretical results, the SAC-OCDMA technique can be an excellent candidate for the future IP backbone.
Abstract: In this paper, we explore avenues to efficiently use spectral amplitude coding optical code-division multiple-access (SAC-OCDMA) technique as a solution to the Internet protocol (IP) routing bottleneck in the global internet access. This work reveals for the first time the authors proposed a novel class of codes called the flexible cross correlatio...
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