Pressure sensor that uses bent biconically tapered single-mode fibers

Area of Science:

• Optics and Photonics
• Materials Science
• Sensor Technology

Background:

• Single-mode optical fibers are widely used in telecommunications and sensing.
• Tapering optical fibers can alter their transmission and sensing properties.
• Fiber bending is a known method to influence optical signal characteristics.

Purpose of the Study:

• To investigate the use of bent tapered single-mode fibers for pressure sensing.
• To enhance the sensitivity of fiber optic sensors through mechanical manipulation.
• To fabricate and characterize novel pressure sensors based on this principle.

Main Methods:

• Fabrication of biconically tapered single-mode fibers.
• Bending the tapered fibers in a specifically designed fixture.
• Utilizing the bend-sensitive optical properties for transduction.
• Characterization of sensor response to applied pressure.

Main Results:

• The bent tapered single-mode fiber exhibits increased sensitivity to external stimuli.
• Successful fabrication of pressure sensors leveraging this enhanced bend sensitivity.
• Demonstration of a functional fiber optic pressure sensing system.

Conclusions:

• Bent tapered single-mode fibers offer a promising platform for developing highly sensitive pressure sensors.
• This approach provides a cost-effective and robust method for optical pressure measurement.
• Further research can explore applications in various fields requiring precise pressure monitoring.