Demonstration of multiplexed sensor system combining low coherence interferometry and microwave photonics.

Area of Science:

• Photonics and Sensor Technology
• Optical Measurement Systems
• Microwave Engineering

Background:

• Multiplexed sensor systems are crucial for measuring multiple physical parameters simultaneously.
• Integrating low coherence interferometry (LCI) with microwave photonics (MWP) presents novel opportunities for advanced sensing.
• Understanding mutual sensor interactions is vital for accurate multiplexed system performance.

Purpose of the Study:

• To propose and characterize a novel multiplexed sensor system.
• To investigate the integration of LCI and MWP for enhanced sensing capabilities.
• To analyze the impact of mutual interactions between sensors within the multiplexed array.

Main Methods:

• Development of a multiplexed sensor system combining LCI and MWP.
• Characterization using the electrical transfer function of the MWP-LCI system.
• Analysis of mutual sensor interactions through experimental and theoretical approaches.
• Comparison of single detection and balanced detection methods.

Main Results:

• Demonstration of a functional multiplexed sensor system.
• Quantification of the electrical transfer function for system characterization.
• Identification and analysis of mutual interaction effects among sensors.
• Comparative performance evaluation of single and balanced detection.

Conclusions:

• The proposed MWP-LCI system effectively enables multiplexed sensing.
• Mutual sensor interactions can be analyzed and managed within the system.
• Balanced detection offers potential advantages for improved performance in MWP-LCI multiplexed sensors.