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Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape
Published on: January 8, 2014
Rapid fabrication of microhole array structured optical fibers
Rui Yang1, Yong-Sen Yu, Chao Chen
1State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Optics Letters
|October 4, 2011
Summary
Researchers created a microhole array in fiber optics using lasers and etching. This novel fiber Bragg grating (FBG) sensor enables simultaneous measurement of surrounding refractive index and temperature.
Area of Science:
- Optoelectronics
- Fiber Optics
- Nanofabrication
Background:
- Fiber Bragg gratings (FBGs) are widely used in sensing.
- Controlling FBG fabrication is key to developing advanced fiber optic sensors.
- Laser-induced modifications offer precise control over FBG structures.
Purpose of the Study:
- To fabricate a novel microhole array on an FBG.
- To investigate the simultaneous sensing capabilities of the microhole array FBG.
- To correlate FBG fabrication and etching parameters with microhole characteristics.
Main Methods:
- Fabrication of FBGs using femtosecond laser.
- Selective chemical etching of the laser-modified FBG region.
- Characterization of microhole array geometry.
- Experimental demonstration of simultaneous refractive index and temperature sensing.
Main Results:
- Successfully fabricated an orderly microhole array on a single-mode fiber.
- Demonstrated control over microhole shape and size by adjusting fabrication and etching parameters.
- Achieved simultaneous sensing of surrounding refractive index and temperature using the microhole array FBG.
- Utilized transmission power changes and Bragg wavelength shifts for sensing.
Conclusions:
- The microhole array FBG is a viable platform for simultaneous multi-parameter sensing.
- Femtosecond laser fabrication combined with chemical etching provides precise control over microhole structures.
- This technique offers a new avenue for developing advanced fiber optic sensors.
