Details
| Original language | English |
|---|---|
| Title of host publication | Micro-structured and Specialty Optical Fibres VII |
| Editors | Kyriacos Kalli, Alexis Mendez, Pavel Peterka |
| Publisher | SPIE |
| ISBN (electronic) | 9781510643802 |
| Publication status | Published - 18 Apr 2021 |
| Event | Micro-structured and Specialty Optical Fibres VII 2021 - Virtual, Online, Czech Republic Duration: 19 Apr 2021 → 23 Apr 2021 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 11773 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
We report on a novel bend sensor with high flexibility and elasticity based on Bragg grating structures in polymer optical fibres. The concept is very simple and relies on the inscription of eccentrical Bragg gratings into multimode graded-index polymer optical fibres via contact exposure with a krypton fluoride excimer laser in the ultraviolet region and an optimized phase mask. Depending on the polymer optical fibre deformation, the lattice constant of the inscribed Bragg grating is strained or compressed due to its position relative to the fibre core. This in turn results in a shift of the Bragg wavelength of up to 1.3 nm to the red or blue wavelength region, respectively. Therefore, deformation along one axis can be observed with a single Bragg grating with a sensitivity of 50 pm/m−1. Moreover, multiple Bragg gratings inscribed into the same polymer optical fibre at different positions would allow to determine the shape deformation of the fibre relative to a reference frame. Consequently, this technology could form the basis for new applications in the areas of medical diagnostics, robotics or augmented reality in the future.
Keywords
- Bend sensing, Bend sensor, CYTOP, Fibre Bragg Gratings (FBG), Kr-F Excimer Laser, POF Sensor, Polymer Optical Fibre (POF)
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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- Apa
- Vancouver
- BibTeX
- RIS
Micro-structured and Specialty Optical Fibres VII. ed. / Kyriacos Kalli; Alexis Mendez; Pavel Peterka. SPIE, 2021. 117730R (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11773).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Eccentrical Bragg gratings in multimode polymer optical fibres for the 3D detection of bending
AU - Leffers, Lennart
AU - Locmelis, Julia
AU - Bremer, Kort
AU - Roth, Bernhard
AU - Overmeyer, Ludger
N1 - Funding Information: Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation (OV 36/43-1)).
PY - 2021/4/18
Y1 - 2021/4/18
N2 - We report on a novel bend sensor with high flexibility and elasticity based on Bragg grating structures in polymer optical fibres. The concept is very simple and relies on the inscription of eccentrical Bragg gratings into multimode graded-index polymer optical fibres via contact exposure with a krypton fluoride excimer laser in the ultraviolet region and an optimized phase mask. Depending on the polymer optical fibre deformation, the lattice constant of the inscribed Bragg grating is strained or compressed due to its position relative to the fibre core. This in turn results in a shift of the Bragg wavelength of up to 1.3 nm to the red or blue wavelength region, respectively. Therefore, deformation along one axis can be observed with a single Bragg grating with a sensitivity of 50 pm/m−1. Moreover, multiple Bragg gratings inscribed into the same polymer optical fibre at different positions would allow to determine the shape deformation of the fibre relative to a reference frame. Consequently, this technology could form the basis for new applications in the areas of medical diagnostics, robotics or augmented reality in the future.
AB - We report on a novel bend sensor with high flexibility and elasticity based on Bragg grating structures in polymer optical fibres. The concept is very simple and relies on the inscription of eccentrical Bragg gratings into multimode graded-index polymer optical fibres via contact exposure with a krypton fluoride excimer laser in the ultraviolet region and an optimized phase mask. Depending on the polymer optical fibre deformation, the lattice constant of the inscribed Bragg grating is strained or compressed due to its position relative to the fibre core. This in turn results in a shift of the Bragg wavelength of up to 1.3 nm to the red or blue wavelength region, respectively. Therefore, deformation along one axis can be observed with a single Bragg grating with a sensitivity of 50 pm/m−1. Moreover, multiple Bragg gratings inscribed into the same polymer optical fibre at different positions would allow to determine the shape deformation of the fibre relative to a reference frame. Consequently, this technology could form the basis for new applications in the areas of medical diagnostics, robotics or augmented reality in the future.
KW - Bend sensing
KW - Bend sensor
KW - CYTOP
KW - Fibre Bragg Gratings (FBG)
KW - Kr-F Excimer Laser
KW - POF Sensor
KW - Polymer Optical Fibre (POF)
UR - http://www.scopus.com/inward/record.url?scp=85109208008&partnerID=8YFLogxK
U2 - 10.1117/12.2592575
DO - 10.1117/12.2592575
M3 - Conference contribution
AN - SCOPUS:85109208008
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Micro-structured and Specialty Optical Fibres VII
A2 - Kalli, Kyriacos
A2 - Mendez, Alexis
A2 - Peterka, Pavel
PB - SPIE
T2 - Micro-structured and Specialty Optical Fibres VII 2021
Y2 - 19 April 2021 through 23 April 2021
ER -