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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
Low-loss semi-reflective in-fiber mirrors
Edvard Cibula1, Denis Donlagic
11University of Maribor, Faculty of EE & Computer Science, Smetanova 17, SI-2000 Maribor, Slovenia.
Optics Express
|July 1, 2010
Summary
This study introduces an efficient method for creating all-fiber semi-reflective mirrors using controlled etching and fusion splicing. These mirrors offer high reflectance with minimal signal loss, ideal for fiber sensors.
Area of Science:
- Photonics
- Materials Science
- Optical Engineering
Background:
- All-fiber devices require integrated optical components.
- Semi-reflective mirrors are crucial for fiber sensors and interferometric applications.
- Existing methods for fabricating fiber mirrors can be complex or inefficient.
Purpose of the Study:
- To develop an efficient and controllable method for producing all-fiber semi-reflective mirrors.
- To achieve high reflectance and low insertion loss in fabricated fiber mirrors.
- To enable tunable reflectance and transmittance for versatile device applications.
Main Methods:
- Utilizing short-duration etching of standard single-mode fiber in hydrofluoric acid.
- Employing an on-line feedback-assisted fusion splicing process for mirror formation.
- Controlling etching time and fusion parameters to precisely manage mirror properties.
Main Results:
- Achieved fiber mirror reflectance up to 9.5%.
- Maintained excess losses below 0.25 dB.
- Experimental results align well with theoretical and modeling predictions.
Conclusions:
- The developed method provides an efficient route to high-performance all-fiber semi-reflective mirrors.
- The technique allows for a balance between reflectance and transmittance while ensuring low signal loss.
- This advancement is suitable for various all-fiber device applications, particularly fiber sensors.
