Unique Temperature Dependence of Selectively Liquid-Crystal-Filled Photonic Crystal Fibers

Sun, Bing; Zhang, Zuxing; Wei, Wei; Wang, Chao; Liao, Changrui; Zhang, Lin; Wang, Yiping

doi:10.1109/lpt.2016.2539288

Cited by 19 publications

(8 citation statements)

References 25 publications

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“…The unique temperature-dependent characteristics of the selectively NLC-filled PCF were analyzed from 45 • C to 110 • C, and the NLC was selectively infiltrated into the cladding holes of the PCFs experimentally using the fs laser drilling technique. A high sensitivity of 40.2 nm • C −1 in the compact structure was achieved by tracing the wavelength shift of the transmission spectrum [147]. A novel highly sensitive SPR-based NLC and gold-filledPCF temperature sensor was studied.…”

Section: Ri Sensorsmentioning

confidence: 99%

Overview of photonic devices based on functional material-integrated photonic crystal fibers

Wang¹,

Li²,

Cheng³

et al. 2022

J. Phys. D: Appl. Phys.

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Photonic crystal fibers (PCFs) have brought tremendous advancements due to their predominant features of peculiar air-holes arrangement in two-dimentional direction. Functional materials like metals, magnetic fluids, nematic liquid crystals, graphene and so on, are extensively adopted to integrate with PCFs to get extraordinary transmission properties. This review takes the development stages of photonic devices based on functional materials-infiltrated PCFs into consideration, covering the overview of common materials and their photoelectric characteristics, the state-of-art infiltrating/coating techniques, as well as the corresponding applications involving polarization filtering and splittering devices in optical communication and sensing elements related to multiple parameters measurement. The cladding air hole of PCFs provides a natural optofluidic channel for materials being introduced, light-matter interaction being enhanced, and transmission properties being extended, where a lab on a fiber are able to be proceeded. It paves a space for the development of photonic devices in the aspects of compact, multi-functional integration, and electromagnetic resistance as well. According to surface plasmon resonance, the property of tunable refractive indices, and the flexible geometry structures, it comes up to some representative researches on polarization filters, multiplexer-demultiplexers, splitters, couplers and sensors, making a candidate for widespread fields of telecommunication, signal-capacity, and high-performance sensing.

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Section: Ri Sensorsmentioning

confidence: 99%

Overview of photonic devices based on functional material-integrated photonic crystal fibers

Wang¹,

Li²,

Cheng³

et al. 2022

J. Phys. D: Appl. Phys.

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“…e measurement of temperature has great significance in the application fields of industry, scientific research, and clinical medical. For decades, various temperature sensing methods based on optical fiber structure have been proposed and demonstrated, such as Fabry-Perot interferometers [6][7][8], Mach-Zehnder interferometers [9][10][11], Sagnac [12][13][14], fiber Bragg gratings [15][16][17], and longperiod fiber gratings (LPFGs) [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost High-Temperature Sensor Based on Long-Period Fiber/Microfiber Gratings by Local Fictive Temperature Modification

Zhou

Zhang

Xie

et al. 2020

Journal of Chemistry

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A high temperature-sensitive long-period fiber grating (LPFG) sensor fabricated by the local fictive temperature modification is proposed and demonstrated. High-frequency CO2 laser pulses scan standard single-mode fiber (SMF), and the modification zones extended to the core of SMF. Experimental results demonstrate that the LPFG temperature sensors with 600 μm grating period and 32 period numbers offer the average sensitivity of 0.084 nm/C in the temperature range of room temperature (RM) to 875°C. The LPFGs fabricated here show exponential change in terms of the spectral wavelength shift versus changes in temperature. In addition, the maximum temperature sensitivity of 0.37 nm/C is achieved by employing long-period microfiber grating (LPMFG), fabricated by the microheater brushing technique and the local fictive temperature modification. LPMFG sensor exhibits better temperature characteristics due to a thinner diameter.

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“…The researches show that PCFs have a series of diverse optical properties [1]- [4]. In recent years, with the development of materials science, some researchers have creatively combined new materials with PCFs, such as filling liquid crystals or magnetic fluids in the holes and coating graphene or metals on the inner wall of the holes [5]- [8]. Exploring application value from both theoretical and practical aspects, photonic crystal devices can not only replace traditional electronic devices, but also play important roles in optical communications, imaging, and biosensors [9]- [11].…”

Section: Introductionmentioning

confidence: 99%

A Compact and Broadband Photonic Crystal Fiber Polarization Filter Based on a Plasmonic Resonant Thin Gold Film

Chang

Chen

et al. 2019

IEEE Photonics J.

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A novel high birefringence gold-coated photonic crystal fiber (PCF) polarization filter based on surface plasmon resonance is proposed. The six elliptical holes arranged in a specific mode surrounding the core are utilized to gain high birefringence, and gold is coated inside the air holes to generate surface plasmons. By improving structural parameters, we achieve one state of polarization to propagate through the filter whereas the other state is severely attenuated. Specially, in the 1550 nm communication band, the confinement loss of y-polarized mode can reach 442 dB/cm while the corresponding loss of x-polarized mode is only 0.0316 dB/cm. The distinction between two losses is more than 10 000 times. In addition, when the length of the designed PCF filter is 1 mm, an extinction ratio of 326 dB/cm is obtained. The applicable bandwidth is up to 300 nm while the fiber length is merely 50 μm, which is better than other reported literatures. Owing to above-mentioned characteristics, the proposed polarization filter can be widely applied in compact and broadband filters in the communication band.

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Unique Temperature Dependence of Selectively Liquid-Crystal-Filled Photonic Crystal Fibers

Cited by 19 publications

References 25 publications

Overview of photonic devices based on functional material-integrated photonic crystal fibers

Overview of photonic devices based on functional material-integrated photonic crystal fibers

A Low-Cost High-Temperature Sensor Based on Long-Period Fiber/Microfiber Gratings by Local Fictive Temperature Modification

A Compact and Broadband Photonic Crystal Fiber Polarization Filter Based on a Plasmonic Resonant Thin Gold Film

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