Details
| Original language | English |
|---|---|
| Article number | 1363 |
| Journal | Sensors (Switzerland) |
| Volume | 18 |
| Issue number | 5 |
| Early online date | 27 Apr 2018 |
| Publication status | Published - May 2018 |
Abstract
Long-period fiber gratings (LPGs) are well known for their sensitivity to external influences, which make them interesting for a large number of sensing applications. For these applications, fibers with a high numerical aperture (i.e., fibers with highly germanium (Ge)-doped fused silica fiber cores) are more attractive since they are intrinsically photosensitive, as well as less sensitive to bend- and microbend-induced light attenuations. In this work, we introduce a novel method to inscribe LPGs into highly Ge-doped, single-mode fibers. By tapering the optical fiber, and thus, tailoring the effective indices of the core and cladding modes, for the first time, an LPG was inscribed into such fibers using the amplitude mask technique and a KrF excimer laser. Based on this novel method, sensitive LPG-based fiber optic sensors only a few millimeters in length can be incorporated in bend-insensitive fibers for use in various monitoring applications. Moreover, by applying the described inscription method, the LPG spectrum can be influenced and tailored according to the specific demands of a particular application.
Keywords
- Amplitude mask, Excimer laser, Germanium-doped fiber, High NA fiber, Long-period fiber grating, Single-mode fiber
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Sensors (Switzerland), Vol. 18, No. 5, 1363, 05.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Long-Period Gratings in Highly Germanium-Doped, Single-Mode Optical Fibers for Sensing Applications
AU - Schlangen, Sebastian
AU - Bremer, Kort
AU - Zheng, Yulong
AU - Böhm, Sebastian
AU - Steinke, Michael
AU - Wellmann, Felix
AU - Neumann, Jörg
AU - Roth, Bernhard
AU - Overmeyer, Ludger
N1 - Funding information: Acknowledgments: The authors acknowledge support of the Deutsche Forschungsgemeinschaft (DFG) within Grant Number OV 36/31-1. Funding: The publication of this article was funded by the Open Access fund of Leibniz Universität Hannover.
PY - 2018/5
Y1 - 2018/5
N2 - Long-period fiber gratings (LPGs) are well known for their sensitivity to external influences, which make them interesting for a large number of sensing applications. For these applications, fibers with a high numerical aperture (i.e., fibers with highly germanium (Ge)-doped fused silica fiber cores) are more attractive since they are intrinsically photosensitive, as well as less sensitive to bend- and microbend-induced light attenuations. In this work, we introduce a novel method to inscribe LPGs into highly Ge-doped, single-mode fibers. By tapering the optical fiber, and thus, tailoring the effective indices of the core and cladding modes, for the first time, an LPG was inscribed into such fibers using the amplitude mask technique and a KrF excimer laser. Based on this novel method, sensitive LPG-based fiber optic sensors only a few millimeters in length can be incorporated in bend-insensitive fibers for use in various monitoring applications. Moreover, by applying the described inscription method, the LPG spectrum can be influenced and tailored according to the specific demands of a particular application.
AB - Long-period fiber gratings (LPGs) are well known for their sensitivity to external influences, which make them interesting for a large number of sensing applications. For these applications, fibers with a high numerical aperture (i.e., fibers with highly germanium (Ge)-doped fused silica fiber cores) are more attractive since they are intrinsically photosensitive, as well as less sensitive to bend- and microbend-induced light attenuations. In this work, we introduce a novel method to inscribe LPGs into highly Ge-doped, single-mode fibers. By tapering the optical fiber, and thus, tailoring the effective indices of the core and cladding modes, for the first time, an LPG was inscribed into such fibers using the amplitude mask technique and a KrF excimer laser. Based on this novel method, sensitive LPG-based fiber optic sensors only a few millimeters in length can be incorporated in bend-insensitive fibers for use in various monitoring applications. Moreover, by applying the described inscription method, the LPG spectrum can be influenced and tailored according to the specific demands of a particular application.
KW - Amplitude mask
KW - Excimer laser
KW - Germanium-doped fiber
KW - High NA fiber
KW - Long-period fiber grating
KW - Single-mode fiber
UR - http://www.scopus.com/inward/record.url?scp=85046149227&partnerID=8YFLogxK
U2 - 10.3390/s18051363
DO - 10.3390/s18051363
M3 - Article
C2 - 29702600
AN - SCOPUS:85046149227
VL - 18
JO - Sensors (Switzerland)
JF - Sensors (Switzerland)
SN - 1424-8220
IS - 5
M1 - 1363
ER -