Theoretical Analysis of a Microring Resonator Array with High Sensitivity and Large Dynamic Range Based on a...

Area of Science:

• Photonics and optical sensing technologies.
• Advanced sensor design and characterization.

Background:

• Traditional sensors often face limitations in sensitivity and dynamic range.
• Resonator-based sensors offer potential for enhanced performance.

Purpose of the Study:

• To model and investigate the transmission properties of a novel high-sensitivity, large dynamic-range sensor array.
• To establish the principle of a multi-scale measurement technique for resonator-based sensors.

Main Methods:

• Theoretical and numerical modeling of a sensor array comprising single and cascaded resonators.
• Utilizing a sensing ring and a reference ring within the array.
• Analysis based on the transmission spectrum of a resonator.

Main Results:

• The sensor array demonstrated a nearly tenfold increase in sensitivity.
• An improved dynamic range was observed within a specific wavelength range.
• Simulated results closely matched theoretical predictions.

Conclusions:

• The proposed multi-scale measurement technique and sensor array design are effective for enhancing sensing performance.
• This approach offers a promising solution for applications requiring high sensitivity and broad dynamic range in optical sensing.