Research on optical interferometric imaging with flexible control using optical fibers and PIC chip

Area of Science:

• Photonics and Optical Engineering
• Super-resolution Imaging
• Integrated Optics

Background:

• Traditional photonic integrated circuits (PICs) face limitations in sampling distance due to processing size restrictions.
• Interferometric imaging requires precise control over baseline sampling for high-resolution results.

Purpose of the Study:

• To introduce a novel system, FIREFLIES, for enhanced interferometric imaging.
• To demonstrate a flexible method for super-resolution sampling and overcome PIC limitations.

Main Methods:

• Design and manufacturing of the FIREFLIES prototype.
• Utilizing a variable baseline sampling technique with on-chip photodetector.
• Implementing flexible baseline control for super-resolution sampling.

Main Results:

• Experimental validation of the FIREFLIES system using a 1D grating target.
• Observed close alignment between experimental data and theoretical predictions.
• Demonstrated effective super-resolution sampling and imaging performance.

Conclusions:

• The FIREFLIES system successfully enables interferometric imaging with super-resolution capabilities.
• The variable baseline sampling technique effectively extends imaging range beyond traditional PIC limitations.
• FIREFLIES represents a significant advancement in integrated optical imaging systems.