Sökning: "optical fibre"
Visar resultat 1 - 5 av 100 avhandlingar innehållade orden optical fibre.
1. Fibre Bragg Gratings : Characterization, Realization and Simulation
Sammanfattning : The main topic of this thesis is realization and characterization of fibre Bragg gratings. A novel versatile grating fabrication technique is developed and a number of gratings are realized, showing the potential of the system. LÄS MER
2. Pre-scaled clock recovery and ultra-high bit rate soliton transmission over installed optical fibres
Sammanfattning : .... LÄS MER
3. Fibre-Optic Displacement and Temperature Sensing Using Coupling Based Intensity Modulation and Polarisation Modulation Techniques
Sammanfattning : Optical fibre sensors are employed in the measurements of a number of different physical properties or for event detection in safety and security systems. In those environments which suffer from electromagnetic disturbance, in harsh environments where electronics cannot survive and in applications in favour of distributed detection, fibre-optic sensors have found natural areas of use. LÄS MER
4. Optical Transmission Systems Based on Phase-Sensitive Amplifiers
Sammanfattning : 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. LÄS MER
5. Fibre Optic Magnetic Field Sensors Utilizing Iron Garnet Materials
Sammanfattning : This thesis deals with the subject of fibre optic magnetic field sensors utilizing iron garnet materials. Such materials exhibit a large Faraday rotation which make them advantageous for application in compact magnetic field sensors. LÄS MER