Metrology & Photonic Instrumentation

This module describes the operating principles of photonic components and studies their use in the realization of systems, instruments and sensors. Examples of instruments and sensors will be detailed, with interventions of researchers in the field.

• Principles of operation of optical components, especially in guided optics.
• Presentation of the instruments associated with these components and their characterization.
• Notions of metrology around examples of photonic sensors.

Knowledge of propagation, waveguides, interference, diffraction.

Recommended prerequisites*:

Knowledge in wave technology, photonics.

Final examination

1 - Basic principles (9h)

• Introduction to coupling 
• Diffraction grating
• Transverse multimode interference
• Longitudinal interference
• Diffusion (rayleigh raman brillouin)
• Faraday effect (physical effects interactions/sensors), 
• Anisotropy and polarization
• Electro-optical effect
• Scattering reminders

2 - Optical components (9h)

• Phase and amplitude modulators (Mach zehnder)
• Optical insulators, circulators
• Evanescent field coupler 
• Y-coupler, star-shaped
• Wavelength (De)multiplexer (Guide array, coupled guides...)
• Insertion/extraction coupler
• Resonators

3 - Instrumentation (12h) 

• Optical spectrum analyzer, FTIR (1,5h)
• OCT (Coherence Tomography) (white light, freq scan). (1,5h)
• LIDAR (1,5h)
• Imaging/camera (4,5h) 
• Wavefront measurement (1,5h)

4 - Measurement / metrology (12h)

• Examples of measurements and photonic sensors (6h)

• • Refractometric sensors
  • Bragg grating sensors (temperature, strain, pressure sensitivities, interrogation techniques)
  • Gyroscopes (Sagnac effect, Gyrolaser, ring resonators)
  • Thermometers (pyrometer, Raman effect)
  • Optical reflectometry (time, frequency or polarization domain)
  • Networking

• Specific sensor presentations related to local research activities:

• • Gas sensors (3h) 
  • Plasmonic Sensors (1,5h) 
  • PhotoVoltaic Cells (1,5h)

CM : 42h