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Industries of creativity, another thesises edfa source of knowledge
Transmission modules, a PRBS signal generator and phase/intensity modulators allows the generation of different signals up to 10 Gbit/s. A sampling oscilloscope, clock recovery and an integrated test board provide the capabilities for full time domain characterization of integrated optical devices. OOK, DPSK, DQPSK and polarization multiplexed signals can be generated and detected. EDFA amplifiers, fast detectors and more than 200 km of standard optical fiber (SMF 28) permit accurate and realistic transmission experiments. In addition, a unique virtual probe pulse technique is available for devices characterization in time domain. The envelope and the phase, that is the chirp, of single pulses propagating through devices can be accurately analyzed. Pulses from 1 ps to 500 ps offers the most accurate characterization conditions. The technique has been used to detect superluminal effects in integrated optical ring resonators.
In the second part of the thesis we present the design and experimental implementation of electrical interface between commercial ultra-long-haul-system erbium-doped fiber amplifiers (EDFAs) and the laser diode drivers and thermo electric coolers used in our lab.
The Research of Noise Figure for EDFA Performance Impact
The dynamic behavior of the EDFA is obtained by the model introduced in =-=-=- and is based on solving a single ordinary differential equation (ODE) into which ASE is included.
The main contribution of this thesis is in demonstrating that all optical multicast can be made practical for both 1:2 splitters and 1:N splitters through the proper incorporation of in-line EDFA’s and other optical hardware components available off the shelf.
Theoretical analysis on the transient characteristics of EDFA in ..
Abstract—A simple dynamic model of the erbium-doped fiber amplifier (EDFA) that includes self-saturation by amplified spon-taneous emission (ASE) is used to analyze the power and signal-to-noise ratio (SNR) transients in wavelength division multiplexed (WDM) optical networks in which signals cross c ..."
The model, which consists of solving sequentially one ordinary differential equation per amplifier, is used to 1) determine power and SNR excursions in the surviving channels along a chain of 35 EDFA's during isolated add--drop events in a 16-channel WDM circuit switching scenario and 2) run Monte Carlo simulations of the first five EDFA's of the same chain fed by burst-mode packet switching traffic on each of the 16 channels.
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OATD – Open Access Theses and Dissertations
The results are used to examine the influence of average network utilization and source ON–OFF time variance on the probability density function of signal power and SNR at each EDFA output.
Spectrum Of Erbium Doped Fiber Amplifier Computer Science Essay
The model, which consists of solving sequentially one ordinary differential equation per amplifier, is used to 1) determine power and SNR excursions in the surviving channels along a chain of 35 EDFA’s during isolated add–drop events in a 16-channel WDM circuit switching scenario and 2) run Monte Carlo simulations of the first five EDFA’s of the same chain fed by burst-mode packet switching traffic on each of the 16 channels.
Thesis/Dissertation - University of Windsor
A simple dynamic model of the erbium-doped fiber amplifier (EDFA) that includes self-saturation by amplified spontaneous emission (ASE) is used to analyze the power and signalto -noise ratio (SNR) transients in wavelength division multiplexed (WDM) optical networks in which signals cross chains of E ..."
What is the maximum distance of a fiber optic link that …
The simulations also indicate sizable broadening of the power and SNR density functions along the cascade of EDFA’s, reaching levels in excess of 9 dBm and 4 dB for the power and SNR swings, respectively, at the 5th EDFA.
Course index - University of the West Indies
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Engineering Courses - Concordia University
Tunable laser sources are available at wavelength 1.3 and 1.5 μm alongside with broadband sources, 980-nm sources for Erbium-doped fibre optical pumping and several EDFA amplifiers up to 1W output power. Five Optical Spectrum Analyzers (600nm-1700nm), an Optical Vector Analyzer, power meters, polarization meters, wavelength meters, visible and IR cameras complete the basic instrument set. The characterization of almost every optical parameter is available: spectral resolved attenuation and insertion loss, coupling efficiency, effective index, group index and chromatic dispersion, birefringence and space resolved birefringence, near field and refractive index reconstruction, back-scattering and polarization conversion, PDL and PMD. These characterization techniques have been tested on Ge:SiO2, SiON, Si3N4, TeO2, LiNbO3, InP, Chalcogenide, Silicon (SOI), Photonic Chrystal and Multimode waveguides. In the nonlinear domain typical characterizations include nonlinear absorption (TPA/FCA), spectral broadening, XPM and four wave mixing. In the wavelength range 1.52-1.56 μm a 27 dBm of average power is available (CW) with a maximum of 30W of pulse peak power with a repetition rate of 1 KHz.
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