Atmospheric turbulance: Random refractive index of the air: modelling using stochastic hydrodynamic methods; Effects: light beam shift due to wavefront distorsion; Attenuations: order of the magnitude in the total effects; How to self-adapt this effect; etc. Miscellaneous scatterings ...
Working principle and experiment setup for PIN based homodyne (heterdyne) detection: Beating for signals; xxx Key techniques of PIN based homodyne (heterdyne) detection: How to select the appropriate PIN diode with completely the same characteristic parameters? xxx Sub-system ...
Working principle of single photon detector using APD: APD working principle; Electric driver for APD based SPD; APD materials (Si, InGaAs/InP, Ge; superductor, etc.) and their characteristics; Key sub-system of APD based SPD: Electric driver; How to choose the APD (diode selection); ...
General principle and schematic experiment setup for coherent laser communication. Key techniques in coherent laser communications: Laser source; PAT; Detection (heterdyne or homodyne detection); Atom filter; Atmosphere.
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