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Femtosecond Laser Inscribed Bragg Gratings in Low Loss CYTOP Polymer Optical Fiber
Abstract
We report on the first inscription of fiber Bragg gratings (FBGs) in cyclic transparent optical polymer (CYTOP)-perfluorinated polymer optical fibers (POFs). We have used a direct write method with a femtosecond laser operating in the visible. The FBGs have a typical reflectivity of 70%, a bandwidth of 0.25 nm, a 3-mm length, and an index change of ~10-4. The FBGs operate in the C-band, where CYTOP offers key advantages over polymethyl methacrylate optical fibers, displaying significantly lower optical loss in the important near-infrared (NIR) optical communications window. In addition, we note that CYTOP has a far lower affinity for water absorption and a core-mode refractive index that coincides with the aqueous index regime. These properties offer several unique opportunities for POF sensing at NIR wavelengths, such as compatibility with existing optical networks, the potential for POF sensor multiplexing and suitability for biosensing. We demonstrate compatibility with a commercial Bragg grating demodulator.
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Cited by
Toward Commercial Polymer Fiber Bragg Grating Sensors: Review and Applications
Broadway, C., Min, R., Leal-Junior, A. G., Marques, C., & Caucheteur, C. (2019) · Journal of Lightwave Technology · doi:10.1109/jlt.2018.2885957 · Cited by 268
Fiber Bragg Grating Sensors for Cardiorespiratory Monitoring: A Review
Massaroni, C., Zaltieri, M., Lo Presti, D., Nicolo, A., Tosi, D., & Schena, E. (2021) · IEEE Sensors Journal · doi:10.1109/jsen.2020.2988692 · Cited by 128
Metadata
- Authors
- Lacraz, A., Polis, M., Theodosiou, A., Koutsides, C., & Kalli, K.
- Venue
- IEEE Photonics Technology Letters
- Published
- 2015-04-01
- Volume
- 27
- Issue
- 7
- Pages
- 693-696
- ISSN
- 1041-1135 (ISSN-L)
- 1941-0174
- OpenAlex
- W2093819704
- Cited by
- 173
- References
- 0
- FWCI
- 11.87
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Femtosecond Laser Inscribed Bragg Gratings in Low Loss CYTOP Polymer Optical Fiber. https://app.cochat.ai/papers/10.1109/lpt.2014.2386692
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- Lacraz, A., Polis, M., Theodosiou, A., Koutsides, C., & Kalli, K. (2015). Femtosecond Laser Inscribed Bragg Gratings in Low Loss CYTOP Polymer Optical Fiber. IEEE Photonics Technology Letters. https://doi.org/10.1109/lpt.2014.2386692
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