Numerical Modelling of the Optical–Acoustical Characterization of an Anti-Resonant Bragg Hollow Core Fiber
<p>(<b>a</b>) Cross-section of the BHCF. (<b>b</b>) Schematic diagram of the light pathway. (<b>c</b>) Optical field distribution of the resonant wavelength in the cladding. (<b>d</b>) Optical field distribution of the anti-resonant wavelength in the core.</p> "> Figure 2
<p>(<b>a</b>) Transmission spectrum of different inner diameters. (<b>b</b>) Transmission spectrum of different lengths.</p> "> Figure 3
<p>Transmission spectrum of the BHCF and HCF under the same parameters. In the BHCF, <span class="html-italic">n</span><sub>0</sub>, <span class="html-italic">n</span><sub>1</sub>, <span class="html-italic">n</span><sub>2</sub>, d<sub>1</sub>, and d<sub>2</sub> are 1.000, 1.444, 1.454, 1.06 μm, and 3.07 μm, respectively. In the HCF, <span class="html-italic">n</span><sub>0</sub> and <span class="html-italic">n</span><sub>1</sub> are 1.000 and 1.444, respectively. The inner diameter and length of both HCFs are 32 μm and 1.3 mm, respectively.</p> "> Figure 4
<p>(<b>a</b>) The circular pipe model of the BHCF (<b>left</b>) and acoustic pressure distribution in the air core (<b>right</b>). (<b>b</b>) Acoustic pressure response with different frequencies.</p> "> Figure 5
<p>Acoustic field distribution of 1 kHz in the BHCF at (<b>a</b>) 0.15 ms, (<b>b</b>) 0.45 ms, and (<b>c</b>) 0.5 ms.</p> "> Figure 6
<p>Time domain waveform of the acoustic wave (inset with the red line), acoustic field, and acoustic pressure distribution at a certain time, and the corresponding frequency: (<b>a</b>) 1 Hz; (<b>b</b>) 100 Hz; (<b>c</b>) 10 kHz; and (<b>d</b>) 1 MHz.</p> "> Figure 7
<p>(<b>a</b>) Model diagram of piezoelectric ceramics. (<b>b</b>) Terminal voltage when the sound source frequency is 100 Hz.</p> ">
Abstract
:1. Introduction
2. Anti-Resonant Effect and Optical Characterization in the BHCF
3. Acoustical Characterization of the BHCF
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Shi, Y.; Zhou, Y.; Ni, W.; Tian, Y.; Lian, Z.; Shum, P.P. Numerical Modelling of the Optical–Acoustical Characterization of an Anti-Resonant Bragg Hollow Core Fiber. Photonics 2023, 10, 814. https://doi.org/10.3390/photonics10070814
Shi Y, Zhou Y, Ni W, Tian Y, Lian Z, Shum PP. Numerical Modelling of the Optical–Acoustical Characterization of an Anti-Resonant Bragg Hollow Core Fiber. Photonics. 2023; 10(7):814. https://doi.org/10.3390/photonics10070814
Chicago/Turabian StyleShi, Ying, Yilin Zhou, Wenjun Ni, Yongsheng Tian, Zhenggang Lian, and Perry Ping Shum. 2023. "Numerical Modelling of the Optical–Acoustical Characterization of an Anti-Resonant Bragg Hollow Core Fiber" Photonics 10, no. 7: 814. https://doi.org/10.3390/photonics10070814