Homodyne Detection

Detection scheme mixing the signal with a local oscillator beam on the detector — the standard way to read a light field's quadrature.

Specifications & Metrics

type

Quantum Optics & Information

Core Principles & Analysis

• The signal beam is mixed with the local oscillator on the detector.
• This arrangement has the advantage of being insensitive to fluctuations in the frequency of the laser.
• It is more readily applicable to velocity sensing than to tracking signal phase along a path.

Sources

• Wikipedia: Homodyne detection