Simulation Of Soliton Amplification In Micro Ring Resonator For Optical Communication

2012 ◽  
Author(s):  
A. Afroozeh ◽  
I. S. Amiri ◽  
M. Bahadoran ◽  
J. Ali ◽  
P. P. Yupapin
Keyword(s):  
Ring Resonator ◽  
Dark Soliton ◽  
Input Power ◽  
Bright Soliton ◽  
Long Distance ◽  
Optical Signals ◽  
Large Bandwidth ◽  
Power Amplification ◽  
Distance Communication ◽  
Soliton Amplification

A system consisting of a series of micro ring resonator (MRR) is proposed. Optical dark and bright soliton pulses propagating through the nonlinear waveguides are amplified. This system can be used in long distance communication system. The dark and bright soliton is input into the designed system. The nonlinear effect contributes to segregation of continuous soliton pulse into smaller pulses. In this way large bandwidth of optical signals can be obtained. The power amplification occurs when the soliton propagates along the MRRs systems. In this research the concern is the generation of amplified pulse of optical dark and bright soliton while propagating in the MRR device. Simulated results show the amplification of bright soliton in which the input power increases from 0.6 W to 10.9331 W and 7.684 W at the trapped wavelength of 1520.428 nm and 1519.912 nm respectively. Key words: Optical soliton; dark soliton; bright soliton; soliton amplification

scholarly journals Study of Optical Fiber Design Parameters in Fiber Optics Communications

2017 ◽  
Vol 2 (3) ◽  
pp. 302-308 ◽  
Author(s):  
Salim Qadir Mohammed ◽  
Asaad M. Asaad M. Al-Hindawi
Keyword(s):  
Optical Fiber ◽  
Fiber Optics ◽  
Numerical Aperture ◽  
Design Parameters ◽  
Light Sources ◽  
Long Distance ◽  
Graded Index ◽  
Large Bandwidth ◽  
Telecommunication Infrastructure ◽  
Distance Communication

Fiber optics is an important part in the telecommunication infrastructure. Large bandwidth and low attenuation are features for the fiber optics to provide gigabit transmission. Nowadays, fiber optics are used widely in long distance communication and networking to provide the required information traffic for multimedia applications. In this paper, the optical fiber structure and the operation mechanism for multimode and single modes are analyzed. The design parameters such as core radius, numerical aperture, attenuation, dispersion and information capacity for step index and graded index fibers are studied, calculated and compared for different light sources.

Investigation the Effect of Channel Spacing for Long Distance Communication

2019 ◽  
Vol 2 (1) ◽  
pp. 45-47
Author(s):  
Mamta Janagal ◽  
Gurpreet Kaur ◽  
Varinder Mandley ◽  
Tanvi Sood
Keyword(s):  
Wavelength Division Multiplexing ◽  
Optical Gain ◽  
Input Power ◽  
Long Distance ◽  
Channel Spacing ◽  
Wavelength Division ◽  
Received Power ◽  
Signal Input ◽  
Distance Communication ◽  
The Impact

In this paper, the impact of different channel spacing on proposed system setup is investigated for long distance communication. This wavelength division multiplexing (WDM), dense wavelength division multiplexing (DWDM) and ultradense wavelength division multiplexing (UDWDM) is evaluated by considering the signal quality factor, bit error rate, optical gain, and received power for different signal input power and for distance. It is observed that at -5 dBm of signal input power the system covers 130 km with acceptable BER (10-8) and Q-factor (14dB).

SOLITON SPIN IN AN ADD–DROP OPTICAL FILTER FOR LONG DISTANCE SPIN TRANSPORT

SPIN ◽  
2012 ◽  
Vol 02 (01) ◽  
pp. 1250001
Author(s):  
C. TEEKA ◽  
M. S. AZIZ ◽  
S. PIPATSART ◽  
K. SRINUANJAN ◽  
J. ALI ◽  
...  
Keyword(s):  
Spin Transport ◽  
Ring Resonator ◽  
Optical Filter ◽  
Dark Soliton ◽  
Spin States ◽  
Long Distance ◽  
Resonant Condition ◽  
Left Hand ◽  
Dynamic Spin ◽  
Many Particles

A new concept of an optical 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 orthogonal solitons corresponding to the left-hand and right-hand solitons (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 soliton spins are exhibited. Many soliton spins, i.e., many particles, dynamic spin and long distance spin transport using the proposed design are also discussed.

Determination Of Fwhm For Solition Trapping

2012 ◽  
Author(s):  
A. Afroozeh ◽  
I. S. Amiri ◽  
J. Ali ◽  
P. P. Yupapin
Keyword(s):  
Ring Resonator ◽  
Optical Memory ◽  
Dark Soliton ◽  
Input Power ◽  
Ring Resonators ◽  
Nonlinear Waveguide ◽  
Dark Solitons ◽  
Soliton Pulse ◽  
Interesting System

In this study an interesting system in which a bright and dark soliton pulse can be stopped inside a nonlinear waveguide is presented. Here, we propose a system consisting of a series of ring resonators for optical trapping within a nonlinear waveguide. The bright and dark solitons can be controlled and slowed down within the waveguide. The FWHM for the output signals are calculated and used as an optical memory. Bright and dark soliton behaviors within a micro and nano ring resonator are also investigated and described. The required pulse is filtered and amplified, can be controlled and localized within the system. The localized bright and dark solitons are stopped by controlling the input power, which means that the photon stopping can be controlled by light in a ring resonator. Key words: Dark soliton; bright soliton; nonlinear nano waveguide; stopped light

Multi Soliton Generation for Enhance Optical Communication

2011 ◽  
Vol 83 ◽  
pp. 136-140 ◽  
Author(s):  
Abdolkarim Afroozeh ◽  
Iraj Sadegh Amiri ◽  
Muhammad Arif Jalil ◽  
Mojgan Kouhnavard ◽  
Jalil Ali ◽  
...  
Keyword(s):  
Wavelength Division Multiplexing ◽  
Ring Resonators ◽  
Long Distance ◽  
Wavelength Division ◽  
Large Bandwidth ◽  
Soliton Pulse ◽  
Free Spectrum ◽  
Distance Communication ◽  
Temporal Modes ◽  
Soliton Generation

We propose a new optical system that can be used to form the multi-soliton pulses within the micro-ring resonators. The system consists of two micro-ring resonators and an add/drop multiplexer that can be integrated into a single system. The large bandwidth signal is generated by using a soliton pulse propagating in a Kerr-type nonlinear medium. The tuned soliton pulses in either spatial or temporal modes are obtained by using the add/drop multiplexer. Results show the generation of multi-soliton pulses within the micro-ring resonator can be achieved for long distance communication. This results in an increase in the number of channels and spaces with a large free spectrum range (FSR) of 650 pm for dense wavelength division multiplexing (DWDM).

scholarly journals A Long-Distance Communication Architecture for Medical Devices Based on LoRaWAN Protocol

Electronics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 940
Author(s):  
Nicoleta Cristina Gaitan
Keyword(s):  
Energy Consumption ◽  
Long Range ◽  
Medical Devices ◽  
Low Energy ◽  
Area Network ◽  
Wide Area Network ◽  
Long Distance ◽  
Communication Architecture ◽  
Low Energy Consumption ◽  
Distance Communication

Recent market studies show that the market for remote monitoring devices of different medical parameters will grow exponentially. Globally, more than 4 million individuals will be monitored remotely from the perspective of different health parameters by 2023. Of particular importance is the way of remote transmission of the information acquired from the medical sensors. At this time, there are several methods such as Bluetooth, WI-FI, or other wireless communication interfaces. Recently, the communication based on LoRa (Long Range) technology has had an explosive development that allows the transmission of information over long distances with low energy consumption. The implementation of the IoT (Internet of Things) applications using LoRa devices based on open Long Range Wide-Area Network (LoRaWAN) protocol for long distances with low energy consumption can also be used in the medical field. Therefore, in this paper, we proposed and developed a long-distance communication architecture for medical devices based on the LoRaWAN protocol that allows data communications over a distance of more than 10 km.

Optical two-tone generation and SSB modulation using electro-optic modulator with suppressing redundant spectrum components

2011 ◽  
Vol 3 (3) ◽  
pp. 295-300 ◽  
Author(s):  
Akira Enokihara ◽  
Tadashi Kawai ◽  
Tetsuya Kawanishi
Keyword(s):  
Input Power ◽  
Intensity Level ◽  
Optical Signals ◽  
Single Sideband ◽  
Electro Optic ◽  
Rf Signals ◽  
Frequency Components ◽  
Optical Single Sideband ◽  
Tone Generation ◽  
Electro Optic Modulator

Doubled frequency optical two-tone generation and optical single sideband (SSB) modulation by the dual-electrode-type electro-optic (EO) modulator with a single Mach–Zehnder (MZ) interferometer were considered. We theoretically showed that redundant spectrum components in the modulated optical signals, which are caused by the imbalance of light splitting ratio between the two arms of the interferometer, are significantly suppressed by controlling the input power ratio of RF modulation signals applied to each electrode. This effect was confirmed by the experiment, where an optical two-tone with the redundant components 49.8 dB lower than the primary two-tone components in intensity level was obtained. This method is also valid for suppression of undesired frequency components of RF signals that are generated at a photo detector from the optical two-tone waves propagated through a dispersive optical fiber.

scholarly journals Quantum repeaters based on concatenated bosonic and discrete-variable quantum codes

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Filip Rozpędek ◽  
Kyungjoo Noh ◽  
Qian Xu ◽  
Saikat Guha ◽  
Liang Jiang
Keyword(s):  
Continuous Variable ◽  
Quantum Codes ◽  
Discrete Variable ◽  
Long Distance ◽  
Concatenated Code ◽  
Different Types ◽  
Optical Modes ◽  
Distance Communication ◽  
Quantum Repeaters ◽  
Quantum Error

AbstractWe propose an architecture of quantum-error-correction-based quantum repeaters that combines techniques used in discrete- and continuous-variable quantum information. Specifically, we propose to encode the transmitted qubits in a concatenated code consisting of two levels. On the first level we use a continuous-variable GKP code encoding the qubit in a single bosonic mode. On the second level we use a small discrete-variable code. Such an architecture has two important features. Firstly, errors on each of the two levels are corrected in repeaters of two different types. This enables for achieving performance needed in practical scenarios with a reduced cost with respect to an architecture for which all repeaters are the same. Secondly, the use of continuous-variable GKP code on the lower level generates additional analog information which enhances the error-correcting capabilities of the second-level code such that long-distance communication becomes possible with encodings consisting of only four or seven optical modes.

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