Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Erbium Doped Fiber Amplifier"”.
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Characterization and comparison of optical source relative intensity noise and effects in optical coherence tomography
… include a super-luminescent diode (SLD), an erbium-doped fiber amplifier (EDFA), multiplexed SLDs, and a continuous wave (cw) laser. A method for the reduction of RIN by amplifying the SLD light output by using a gain-saturated semiconductor optical amplifier (SOA) is reported. Also, …
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An analysis of cross grain saturation effects in systems of cascaded erbium-doped fiber amplifiers
… the problem of Cross Gain Saturation effects in Erbium Amplifier Cascades. Chapter 1 provides an interesting historical perspective on lightwave communications. This chapter serves as a primer of sorts for understanding the impact of input intensity on amplifier gain, the composition of the …
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Tools for quantum optics : pulsed polarization-maintaining Er-doped fiber laser and spatial mode manipulation in spontaneous parametric downconversion
… optics. In one project, a pulsed, mode-locked erbium-doped fiber laser, designed to be used as a seed laser for a 390 nm source, was built using polarization-maintaining components to address polarization drift. The fiber laser operated at a center wavelength of 1560.0 nm with an output power …
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Optomechanical design, analysis, and testing of the nanosatellite optical downlink experiment
… at 500 Hz. Component level TVAC testing of the Erbium Doped Fiber Amplifier is performed and an optical loss of 0.2 dB is measured. FSM pointing repeatability testing is performed and pointing capability is verified to be within +- 3.6 arc minutes of the commanded location.
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The effects of noise in CATV distribution networks with star couplers and fiber amplifiers
… Networks. The use of star couplers and fiber amplifiers is an approach to overcome these problems and meet the increasing demand for large capacity and high quality. The capacity and performance analyses of three different network configurations are compared based on the results of …
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The impact of brillouin pump pre-amplification on multiwavelength brillouin-erbium fiber laser in linear cavity
Multiwavelength Brillouin Erbium Fiber Lasers (BEFLs) gain interest in recent decades due to their inherent characteristics such as narrow linewidth, high optical power and single frequency. Generation of multiple wavelengths is realizable through combination of Brillouin and Erbium-Doped Fiber …
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Fiber Bragg Gratings Strain Sensors for Railway Applications
Fiber optical sensors have played an important role in applications for monitoring the health of civil infrastructures, such as bridges, oil rigs, and railroads. Due to the reduction in cost of fiber-optic components and systems, fiber optical sensors have been studied extensively for their higher …
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Remote temperature sensing with low-threshold-power using erbium-doped fiber laser
… appropriate action can be taken quickly. Optical fiber laser temperature sensor is one of technologies that can be used for the implementation of remote temperature sensing. Few developments have been reported regarding the use of fiber laser for remote temperature sensing. However, in general …
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New techniques for multiple wavelength fiber laser generation based on edfa and tdfa
Multiple wavelength fiber laser (MWFL) can be a potential source for microwave generation as the conventional microwave generator have several issues in generating high frequency. In order to be such source, the MWFL must have the following criterion; a great number of comb lines, a compact design, …
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Cascaded ROADM Filter Replication and the Effects of Statistical Variations in the Response of Cascaded ROADMs on 100 Gb/s DP-QPSK System Performance
… passband slope, due to the interaction with the Erbium-Doped Fiber Amplifier. In the ranges tested, the slope was not correlated with the mean SNR, whereas the ripple amplitude was negatively correlated with the mean SNR. The ripple period was also found to influence the performance penalty.
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High Speed Fiber Optic Spectrometer
… and mathematical model of a novel high speed fiber optic spectrometer (HSFOS). In addition, the performance analysis is conducted and preliminary experimental results are listed and discussed. Such a spectrometer is highly desired by the ever-increasing applications of fiber optic sensors. In …
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Development of "Core-Suction" Technique for Fabrication of Highly Doped Fibers for Optical Amplification and Characterization of Optical Fibers for Raman Amplification
… named "Core Suction" for fabricating optical fiber preforms for manufacturing highly doped fibers (HDFs) for optical amplification (Raman effect based or Erbium fiber based). The technique involves drawing the molten non-conventional core glass material into the silica cladding tube to form …
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Digital Twin-Based Modeling and Optimization of InP Mach-Zehnder Modulators and EDFAs for Software-Defined Optical Networks
L'abstract è presente nell'allegato / the abstract is in the attachment