Quantitative characterization of endoscopic imaging fibers

Area of Science:

• Optical Engineering
• Medical Imaging
• Materials Science

Background:

• Endoscopic imaging fibers are crucial for minimally invasive medical procedures.
• Quantitative characterization is needed to ensure optimal performance of these fibers.
• Current methods may not fully capture the performance nuances relevant for specific clinical applications.

Purpose of the Study:

• To present a novel technique for the quantitative characterization of endoscopic imaging fibers.
• To establish a standardized method for evaluating fiber performance using interference patterns.
• To compare the performance of in-house fabricated and commercial imaging fibers.

Main Methods:

• Utilized an interference pattern as a standard object for imaging.
• Analyzed the visibility of the interference pattern at the fiber output.
• Varied the wavelength and fringe period of the interference pattern during analysis.

Main Results:

• Successfully characterized three different endoscopic imaging fibers.
• Demonstrated the technique's ability to differentiate fiber performance.
• Identified potential for optimizing fibers for specific wavelength ranges (<650 nm).

Conclusions:

• The described interference pattern technique provides quantitative characterization of endoscopic imaging fibers.
• This method is effective for comparing and optimizing fibers for applications like fluorescence bronchoscopy.
• The technique aids in the development of advanced imaging tools for intensive care clinics.