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1 x 2 fiber-optic heterodyne array for laser Doppler velocimetry and angular orientation measurements
Optics Letters
|September 29, 2009
Summary
This study introduces a novel fiber-optic heterodyne array for simultaneous measurement of radial and angular Doppler velocities. The system also offers an error signal for precise angular tracking applications.
Area of Science:
- Optics and Photonics
- Signal Processing
- Remote Sensing
Background:
- Doppler velocimetry is crucial for target velocity measurement.
- Accurate angular tracking requires specialized sensor systems.
Purpose of the Study:
- To present a novel fiber-optic heterodyne array.
- To enable simultaneous measurement of radial and angular Doppler velocities.
- To provide an amplitude-dependent error signal for angular tracking.
Main Methods:
- Development of a 1x2 single-mode fiber-optic heterodyne array.
- Implementation of simultaneous Doppler velocity measurement techniques.
- Integration of an amplitude-dependent error signal generation.
Main Results:
- The heterodyne array successfully measured both radial and angular Doppler velocities.
- An effective amplitude-dependent error signal for angular tracking was demonstrated.
Conclusions:
- The presented fiber-optic heterodyne array offers a dual-capability solution for velocity measurement and angular tracking.
- This technology has potential applications in various fields requiring precise motion sensing.
