Course contents (Tentative):
| 1. | Overview of gravitational waves and gravitational wave detectors. |
| 2. | Optics of Fabry-Parot cavities: Plane wave analysis, Audio frequency transfer functions, Higher order transverse modes, Geometric stability, Numerical simulations using Finesse. |
| 3. | Laser requirements for GW detectors: Frequency and intensity stabilization issue, High power laser design, Laser diagnostic and developments tools, Thermal-optical effects, Numerical simulations. |
| 4. | Noise in GW detectors: Thermal noise, thermal-elastic noise, Zener damping, Optical thin film coating, noise cancellation, measurement of coating thermal noise, Shot noise, Radiation pressure noise (classical and quantum), noise propagation in interferometers, Numerical simulation using Matlab. |
| 5. | Introduction to network and control systems: Linear system theory, network synthesis, feedback and feed-forward, Pound-Drever-Hall technique as control system, Numerical simulations using Matlab. |
| 6. | Quantum engineering in GW detectors: Squeezed light, generation and characterization of squeezed light, issues in audio-frequency squeezing, quantum non-demolition measurements in interferometers |
Hands-on Experiments:
Experiments such as (a) He-Ne laser characterization (b) Michelson interferometer (c) Study of Fabry-Perot cavity, (d) Beam profile and beam shape measurements of lasers (e) Optical mode cleaner (f) Second harmonic generation
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