Towards multimode optical polymer waveguides with integrated Bragg gratings fabricated by nanoimprinting for load sensor applications

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00385940" target="_blank" >RIV/68407700:21230/25:00385940 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.3074792" target="_blank" >https://doi.org/10.1117/12.3074792</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.3074792" target="_blank" >10.1117/12.3074792</a>

Result language
angličtina
Original language name
Towards multimode optical polymer waveguides with integrated Bragg gratings fabricated by nanoimprinting for load sensor applications
Original language description
Detection of physical parameters like intensity, wavelength shift, resonance peak bandwidth - key indicators of temperature and strain - is crucial for structural health monitoring particularly in composite materials where early damage detection is vital. This drives interest in optical sensing technologies, such as Bragg grating load sensors in multimode waveguides. We present the fabrication of waveguides and Bragg gratings using a process based on Nanoimprint Lithography (NIL). The waveguides (with a cross-section of 50 x 50μm(2) and 20 x 20μm(2)) exhibit high structural quality. Fiber Bragg gratings (FBGs) were incorporated into the waveguides with a period of 800 nm and 290nm. This research aims to develop cost-effective, eco-friendly, and scalable bio- polymer-based solutions for photonic sensors, with potential applications in industrial and environmental monitoring. Future work will explore sustainable, bio-based materials for waveguide fabrication. Optical characterizations and simulations will optimize the Bragg grating design to minimize optical losses and enhance sensitivity.
Czech name
—
Czech description
—

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proc. SPIE 13698, Photonics, Devices, and Systems IX
ISBN
978-1-5106-9345-6
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
6
Pages from-to
"136980T-1"-"136980T-6"
Publisher name
The International Society for Optical Engineering (SPIE)
Place of publication
Bellingham WA
Event location
Prague
Event date
Jun 9, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001723559900029

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