Journal
OPTICS LETTERS
Volume 44, Issue 8, Pages 1984-1987Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.001984
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Funding
- National Natural Science Foundation of China (NSFC) [61635007, 61705138]
- Natural Science Foundation of Guangdong Province [2014A030308007]
- Science and Technology Innovation Commission of Shenzhen [JCYJ20170302152718747, JCYJ20170412105604705]
- Development and Reform Commission of Shenzhen Municipality Foundation
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In this Letter, we demonstrate a fabrication method of a helical photonic crystal fiber (HPCF) and an inflated HPCF (IHPCF) by use of an inflation-assisted hydrogen-oxygen flame heating technique. The transverse load, strain, temperature, and mechanical torsion properties of the HPCF and IHPCF were investigated experimentally to develop high-sensitivity sensors. The experimental results show that the transverse-load sensitivity could be greatly enhanced by means of enlarging the size of the air holes in the IHPCF; that is, the transverse-load sensitivity, i.e., 15.50 nm/(N . mm(-1)), of the IHPCF is two times higher than the transverse-load sensitivity of the HPCF, i.e., 4.45 nm/(N . mm(-1)). Moreover, both the HPCF and IHPCF exhibit high strain, temperature, and torsion sensitivities. Hence, such an HPCF/IHPCF could have great potential in sensing applications. (c) 2019 Optical Society of America
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