Application of Coherent Detection

What Can Coherent Detection Be Used for?

The basic principle and advantages of coherent detection behind OCT finds applications in several application areas besides ophthalmic imaging such as Metrology and 3D Vision for autonomous systems.

Coherent detection is also known as:

  • Optical Time Domain Reflectometry (OTDR) or Optical Frequency Domain Reflectometry (OFDR) from fiber length measurement
  • Frequency Modulated Continuous Wave (FMCW)

Coherent detection has the advantage of:

  • High sensitivity
  • Wide dynamic range
  • Long measurement depth
  • High speed