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On the characterization of novel step-index biocompatible and biodegradable poly(D,L-lactic acid) based optical fiber

(2020) JOURNAL OF LIGHTWAVE TECHNOLOGY. 38(7). p.1905-1914
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Abstract
We report on the first step-index biodegradable polymer optical fiber (bioPOF) fabricated using commercially available polyesters, with a core made from poly(D,L-lactic-co-glycolic acid) and a cladding made from poly(D,L-lactic acid). We prepared the preforms with a rod-in-tube technique and the fibers with a standard heat drawing process. We discuss the chemical and optical properties of the polyesters along the fabrication process from polymer granulates to optical fiber. More specifically, we address the influence of the processing steps on the molecular weight and thermal properties of the polymers. Cutback measurements return an attenuation of 0.26 dB/cm at 950 nm for fibers with an outer diameter of 1000 +/- 50 mu m, a core of 570 +/- 30 mu m, and a numerical aperture of 0.163. When immersed in phosphate-buffered saline (PBS), bioPOFs degrade over a period of 3 months, concurrent with a 91% molecular weight loss. The core decomposes already after three weeks and features 85% molecular weight loss. There is no any additional optical loss caused by immersion in PBS during the first 30-40 min for a bioPOFs with a diameter of about 500 mu m. Our result demonstrates that bioPOF can be suitable for applications requiring light delivery, deep into living tissue, such as photodynamic therapy.
Keywords
FABRICATION, DEGRADATION, MECHANISMS, SILK, PLGA, Biodegradable materials, optical fibers, optical fiber materials, optical polymers, plastic optical fiber

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MLA
Gierej, Agnieszka, et al. “On the Characterization of Novel Step-Index Biocompatible and Biodegradable Poly(D,L-Lactic Acid) Based Optical Fiber.” JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 38, no. 7, 2020, pp. 1905–14, doi:10.1109/JLT.2019.2959945.
APA
Gierej, A., Filipkowski, A., Pysz, D., Buczynski, R., Vagenende, M., Dubruel, P., … Berghmans, F. (2020). On the characterization of novel step-index biocompatible and biodegradable poly(D,L-lactic acid) based optical fiber. JOURNAL OF LIGHTWAVE TECHNOLOGY, 38(7), 1905–1914. https://doi.org/10.1109/JLT.2019.2959945
Chicago author-date
Gierej, Agnieszka, Adam Filipkowski, Dariusz Pysz, Ryszard Buczynski, Maxime Vagenende, Peter Dubruel, Hugo Thienpont, Thomas Geernaert, and Francis Berghmans. 2020. “On the Characterization of Novel Step-Index Biocompatible and Biodegradable Poly(D,L-Lactic Acid) Based Optical Fiber.” JOURNAL OF LIGHTWAVE TECHNOLOGY 38 (7): 1905–14. https://doi.org/10.1109/JLT.2019.2959945.
Chicago author-date (all authors)
Gierej, Agnieszka, Adam Filipkowski, Dariusz Pysz, Ryszard Buczynski, Maxime Vagenende, Peter Dubruel, Hugo Thienpont, Thomas Geernaert, and Francis Berghmans. 2020. “On the Characterization of Novel Step-Index Biocompatible and Biodegradable Poly(D,L-Lactic Acid) Based Optical Fiber.” JOURNAL OF LIGHTWAVE TECHNOLOGY 38 (7): 1905–1914. doi:10.1109/JLT.2019.2959945.
Vancouver
1.
Gierej A, Filipkowski A, Pysz D, Buczynski R, Vagenende M, Dubruel P, et al. On the characterization of novel step-index biocompatible and biodegradable poly(D,L-lactic acid) based optical fiber. JOURNAL OF LIGHTWAVE TECHNOLOGY. 2020;38(7):1905–14.
IEEE
[1]
A. Gierej et al., “On the characterization of novel step-index biocompatible and biodegradable poly(D,L-lactic acid) based optical fiber,” JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 38, no. 7, pp. 1905–1914, 2020.
@article{8666906,
  abstract     = {We report on the first step-index biodegradable polymer optical fiber (bioPOF) fabricated using commercially available polyesters, with a core made from poly(D,L-lactic-co-glycolic acid) and a cladding made from poly(D,L-lactic acid). We prepared the preforms with a rod-in-tube technique and the fibers with a standard heat drawing process. We discuss the chemical and optical properties of the polyesters along the fabrication process from polymer granulates to optical fiber. More specifically, we address the influence of the processing steps on the molecular weight and thermal properties of the polymers. Cutback measurements return an attenuation of 0.26 dB/cm at 950 nm for fibers with an outer diameter of 1000 +/- 50 mu m, a core of 570 +/- 30 mu m, and a numerical aperture of 0.163. When immersed in phosphate-buffered saline (PBS), bioPOFs degrade over a period of 3 months, concurrent with a 91% molecular weight loss. The core decomposes already after three weeks and features 85% molecular weight loss. There is no any additional optical loss caused by immersion in PBS during the first 30-40 min for a bioPOFs with a diameter of about 500 mu m. Our result demonstrates that bioPOF can be suitable for applications requiring light delivery, deep into living tissue, such as photodynamic therapy.},
  author       = {Gierej, Agnieszka and Filipkowski, Adam and Pysz, Dariusz and Buczynski, Ryszard and Vagenende, Maxime and Dubruel, Peter and Thienpont, Hugo and Geernaert, Thomas and Berghmans, Francis},
  issn         = {0733-8724},
  journal      = {JOURNAL OF LIGHTWAVE TECHNOLOGY},
  keywords     = {FABRICATION,DEGRADATION,MECHANISMS,SILK,PLGA,Biodegradable materials,optical fibers,optical fiber materials,optical polymers,plastic optical fiber},
  language     = {eng},
  number       = {7},
  pages        = {1905--1914},
  title        = {On the characterization of novel step-index biocompatible and biodegradable poly(D,L-lactic acid) based optical fiber},
  url          = {http://dx.doi.org/10.1109/JLT.2019.2959945},
  volume       = {38},
  year         = {2020},
}

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