Search for dissertations about: "fibre amplifier"
Found 4 swedish dissertations containing the words fibre amplifier.
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1. Investigations of Issues Relevant to the Application of Photon Echoes in Information Technology
Abstract : Photon echoes have been studied both experimentally and theoretically, with the main part of the work centred around the concept of using photon echoes for all-optical data storage and processing. The four basic Boolean operators, AND, OR, NOT and XOR have been experimentally demonstrated using photon echoes. READ MORE
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2. Optical Transmission Systems Based on Phase-Sensitive Amplifiers
Abstract : The capacity and reach of today's long-haul fiber optical communication systems is limited by amplifier noise and fiber nonlinearities. Conventional, phase-insensitiveamplifiers (PIAs), have a quantum limited noise figure (NF) of 3 dB at high gain, meaning that with a shot-noise limited input signal the signal-to-noise ratio (SNR)is degraded by at least 3 dB. READ MORE
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3. Low Noise Amplifiers Based on High TC SQUIDs
Abstract : This thesis describes the development, fabrication, performance and applications of liquid nitrogen cooled voltage amplifiers based on high temperature superconducting quantum interference devices (SQUIDs). The SQUID based voltage amplifier is intended for characterization of electrical and noise properties of devices with resistance around and below 1 Ohm. READ MORE
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4. Energy Saving vs. Performance: Trade-offs in Optical Networks
Abstract : The energy consumption of communication networks is continuously growing. Many energy saving approaches have been proposed at the device, system, and network level. The most promising way to address this problem is to utilize photonic technologies as much as possible thanks to their low energy consumption per bit performance. READ MORE