Essays about: "Optical modulator"
Showing result 11 - 15 of 16 essays containing the words Optical modulator.
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11. Stabilization of an optical frequency comb to an external cavity
University essay from Umeå universitet/Institutionen för fysikAbstract : The subject of this master's thesis is stabilizing a frequency comb laser to an external cavity using a couple of servo controllers. The aim of the project was to build a pair of servo controllers, replacing parts of the existing commercial and proprietary solution already in use. READ MORE
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12. Diode laser frequency stabilization onto an optical cavity
University essay from Lunds universitet/Atomfysik; Lunds universitet/Matematisk fysikAbstract : During this thesis work, a frequency stabilization system for an External Littrow Cavity Diode Laser (ECDL) at 370 nm has been set up and tested. The goal of the frequency stabilization is to achieve a long term frequency stability of less than ±50 kHz within 8 hours, which will be used for the single Ce ion detection project in the quantum information group. READ MORE
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13. Investigation of the chirp properties of DFB-EAM’s for high speed baseband and RoF transmission links
University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)Abstract : The ever increasing bandwidth demands driven by an explosion in the mobile device market calls for more and more optical and wireless convergence due to the ability of optical communication systems to transport larger amounts of information to longer distances. Optical modulators are in charge of performing the electrical-to-optical domain conversion, which place them as one of the critical components in optical communication systems. READ MORE
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14. Investigation of Large Signal Effects onCascaded Travelling Wave ElectroAbsorption Modulator (CTWEAM)Performance and Optimization
University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)Abstract : In this thesis work large signal model of cascaded travelling wave electroabsorption modulator (CTWEAM) has been studied. The effect of input modulating voltage, input optical power, biasing voltage, and circuit parameters on bandwidth, extinction ratio and overshooting of this modular carefully investigated. READ MORE
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15. Digital Pre-compensation of Chromatic Dispersion in QPSK high speed telecom systems
University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)Abstract : Chromatic dispersion (CD) is one of the most significant impairments in optical fiber communication systems. Since expensive and complex optical components are required to mitigate CD in the optical domain high-speed digital signal processing techniques are becoming an alternative to compensate electronically both non-linear and linear optical fiber degradations in the transmitter or receiver. READ MORE
