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A Protocol for Real-time 3D Single Particle Tracking
Published on: January 3, 2018
Real-time electrooptical signal processors with coherent detection
M King1, W R Bennett, L B Lambert
1Columbia University, New York, NewYork 10027, USA.
Applied Optics
|January 12, 2010
Summary
Coherent detection in electro-optical spectrum analyzers preserves phase information lost in conventional methods. This study confirms the feasibility of constructing real-time spectrum analyzers using coherent detection techniques.
Area of Science:
- Optoelectronics
- Signal Processing
- Photonics
Background:
- Conventional real-time electro-optical signal processors detect output intensity, losing phase information.
- Phase information is crucial for many signal processing applications.
Purpose of the Study:
- To investigate the properties of real-time electro-optical spectrum analyzers employing coherent detection.
- To determine the feasibility of preserving phase information in optical signal processing.
Main Methods:
- Theoretical analysis of coherent detection principles in electro-optical systems.
- Experimental validation of the theoretical model.
- Heterodyning optical signals with a local oscillator for phase preservation.
Main Results:
- Coherent detection successfully preserves phase information, unlike conventional intensity detection.
- Theoretical equations governing the operation of coherent detection spectrum analyzers were derived.
- Experimental results confirmed the theoretical predictions.
Conclusions:
- Real-time electro-optical spectrum analyzers with coherent detection are feasible.
- This technology enables the recovery of phase information in optical signals.
- Further development could lead to advanced optical signal processing devices.
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