- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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An optical fiber strain sensor by using of taper based TCF structure
摘要： We propose an optical fiber strain sensor consisting of a spliced twin-core fiber (TCF). The sensor structure has two fiber tapers, which are weak taper and T-shaped taper. The taper waist of T-shaped taper is about half-size of the weak taper, but the length of the T-shaped taper is also about half-length of the weak taper. In the sensing structure, core mode and cladding modes of the TCF are excited simultaneously. Two tapered regions around the splicing interfaces can play the roles of splitting and combining the modes in the fiber. In experiment, the proposed device has good quality interferometric spectra, and the highest extinction ratio of 20 dB is achieved. When the stress increases from 0 με to 841.5 με, different wavelength sensitivities of 3.31 pm/με and 6.11 pm/με are achieved. Different intensity sensitivities of 7.5 × 10?3 dB/με and 9.9 × 10?3 dB/με are also achieved, respectively. The sensor has shown good test stability and low temperature sensitivity, which is good for precise strain measurement in practical applications.
关键词： Twin-core fiber,Fiber design and fabrication,Fiber optical sensor
更新于2025-11-28 14:23:57
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[IEEE 2018 Asia Communications and Photonics Conference (ACP) - Hangzhou, China (2018.10.26-2018.10.29)] 2018 Asia Communications and Photonics Conference (ACP) - Visible Coherent Femtosecond Supercontinuum from Air-Suspended-Core Photonic Crystal Fiber
摘要： We report efficient visible supercontinuum (SC) generated from a borosilicate glass photonic crystal fiber, using an 800-nm Ti:sapphire femtosecond laser. Using Michelson interferometer, the SC coherence has been measured to be ~0.8.
关键词： Fiber design and fabrication,Supercontinuum generation,Photonic crystal fibers
更新于2025-11-28 14:23:57
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Dispersion flattened extremely high-birefringent kagome lattice elliptic core photonic crystal fiber in THz regime
摘要： A highly birefringent elliptic porous-core photonic crystal fiber with kagome lattice cladding has been presented for terahertz (THz) wave transmission. The slotted airholes inside the elliptic core effectively disrupt the symmetry of the porous-core which offers extremely high modal birefringence whereas the kagome cladding structure results in significantly low effective material loss (EML). The birefringence of the proposed structure is 9.73 × 10?2 for y-polarized mode at an operating frequency of 1 THz. The suggested structure also provides very flat dispersion over a bandwidth of 300 GHz. It is highly expected that this elliptic core waveguide would be remarkably useful in numerous polarization maintaining THz applications.
关键词： Photonic crystal fibers,Microstructured fibers,Fibres, polarization-maintaining,Optical communications,Fiber design and fabrication
更新于2025-09-23 15:23:52
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Panda type few-mode fiber capable of both mode profile and polarization maintenance
摘要： We report the design, fabrication and characterization of panda type few-mode fiber (panda-FMF) capable of both mode profile and polarization maintenance, due to the use of two applied stress rods into the conventional FMF. The panda-FMF can support six spatial modes including LP01, LP11a, LP11b, LP21a, LP21b and LP02, and each possesses two orthogonal linear polarization modes. According to the characterization results of panda-FMF, we theoretically identify that the effective refractive index (RI) difference between either two spatial or orthogonal linear polarization modes is more than 1×10-4 over the C-band. Moreover, the experimental results verify that, both mode profile and polarization of high-order radially asymmetric modes can be perfectly maintained even under severe twist rate of 1.57 rad/m.
关键词： polarization-maintaining,fiber optics,Fiber design and fabrication,fibers
更新于2025-09-23 15:21:01
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[IEEE 2018 20th International Conference on Transparent Optical Networks (ICTON) - Bucharest (2018.7.1-2018.7.5)] 2018 20th International Conference on Transparent Optical Networks (ICTON) - Hollow Core Antiresonant Fibers: Novel Designs, Materials and Applications
摘要： The development of hollow core optical fibers (HCs) based on the antiresonant optical principle is gaining a significant interest within the optical fiber research community due, among others, to their broadband transmission, mid-infrared and ultra-violet operation, as well as their unique ability to handle high optical power. In this work, we offer an update on our recent activities related to the introduction of novel HCs designs, the fabrication of HCs based on composite materials and, in particular, to the development of novel HCs for mid- infrared transmission. These novel forms of optical fibers may unable a range of novel, still unexplored applications.
关键词： fiber design and fabrication,microstructured fibers,fiber properties
更新于2025-09-23 15:21:01
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[IEEE 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) - Munich, Germany (2019.6.23-2019.6.27)] 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) - A Focal-Ratio-Degradation (FRD) Resistant Multimode Fibre Link using Mode-Selective Photonic Lanterns
摘要： Mode-selective multicore fibre photonic lanterns are used to create a 6-mode multimode optical fibre link that is considerably more resistant to focal ratio degradation (FRD) than a 6-mode step-index optical fibre.
关键词： Fiber design and fabrication,Fiber properties
更新于2025-09-16 10:30:52
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[IEEE 2019 21st International Conference on Transparent Optical Networks (ICTON) - Angers, France (2019.7.9-2019.7.13)] 2019 21st International Conference on Transparent Optical Networks (ICTON) - How to Amplify Light in an Unfilled Hollow Core Optical Fiber
摘要： Optical amplification in a hollow core fiber is typically realised by filling the fiber with a gas and exploiting its active properties. In contrast, here we explore the theoretical possibility of achieving light amplification in an unfilled hollow core antiresonant fiber. In order to do so, we propose and discuss a hollow fiber design based on a combination of resonant and anti-resonant elements within the cladding area.
关键词： fiber properties,fiber design and fabrication,microstructured fibers
更新于2025-09-16 10:30:52
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[IEEE 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC) - Fukuoka, Japan (2019.7.7-2019.7.11)] 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC) - Multi-core Fiber Fabrication in Over-Cladding Bundled Rods Method Applying Polygonal Rods
摘要： The implementation of multi-core fiber fabrication using the over-cladding bundled rods method results in large core deformation. We have achieved core deformation of approximately 1%, on average, through a method applying hexagonal rods.
关键词： Fiber design and fabrication,Fibers for space division multiplexing
更新于2025-09-16 10:30:52
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A Double-Cladding Single Polarization Photonic Crystal Fiber and Its Structure Deviation Tolerance
摘要： We propose a novel broadband single-polarization single-mode photonic crystal fiber (SPSM-PCF) with hexagonally latticed circular airholes. Combined with our fabricated polarization maintaining fiber, it has demonstrated that the enlarged air holes in the outmost layer are superior for the confinement loss reduction. At the optimized parameters, the wavelength of SPSM region is ranging from 1.52 μm to 2.13 μm, where only y-polarized fundamental mode exists and the confinement loss is 0.051 dB/km at 1.55 μm. The influence of realistic fabrication errors involving structure deviation on SPSM operation has also been systematically investigated.
关键词： fiber properties.,Fiber design and fabrication,photonic crystal fibers,single-polarization single mode
更新于2025-09-09 09:28:46