Analysis of multimode BDK doped POF gratings for temperature sensing

Luo, Yanhua; Wu, Wenxuan; Cheng, Xinyi; Zhang, Qijin; Peng, Gang-Ding; Zhu, Bing

doi:10.1016/j.optcom.2012.06.051

Cited by 4 publications

(7 citation statements)

References 38 publications

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“…To date, for the improvement of grating quality and inscription efficiency, several kinds of photosensitive materials have been doped in either cores or claddings of PMMAbased POFs. The photosensitive materials as dopants include benzyl dimethyl ketal (BDK) [19,23,[31][32][33][34][35], trans-4-stilbenemethanol (TS) [27][28][29][36][37][38], diphenyl disulphide (DPDS) [4,18], 9-vinylanthracene (9-VA) [30], methyl vinyl ketone (MVK) [16], and azobenzene (AZO) [39][40][41][42], etc., whose molecular structures are listed in Table 1. For POFs with doped cores, the dopants normally play two roles, including the enhancement of photosensitivity and increase of core refractive index of the fiber [4,16,19,[21][22][23]30,33,39,41,43].…”

Section: Photosensitive Dopants In Pofsmentioning

confidence: 99%

“…Among various types of gratings, FBGs are the most common ones. Many researchers have succeeded in inscribing the FBGs efficiently in POFs with photosensitive cores [4,19,20,23,[27][28][29][31][32][33][34]38,43,49,71,89]. Among them, the BDK-doped core is the most popular, whose refractive index increases under UV irradiation [19,20,23,[31][32][33][34]43].…”

Section: Fbgs In Pofsmentioning

confidence: 99%

“…Many researchers have succeeded in inscribing the FBGs efficiently in POFs with photosensitive cores [4,19,20,23,[27][28][29][31][32][33][34]38,43,49,71,89]. Among them, the BDK-doped core is the most popular, whose refractive index increases under UV irradiation [19,20,23,[31][32][33][34]43]. Besides, the photosensitivity of the POF can be improved by doping TS [27][28][29]38,49,71,89], which is another popular photosensitive material.…”

Section: Fbgs In Pofsmentioning

confidence: 99%

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Recent Achievements on Grating Fabrications in Polymer Optical Fibers with Photosensitive Dopants: A Review

et al. 2022

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This review discusses recent achievements on grating fabrications in polymer optical fibers doped with photosensitive materials. First, different photosensitive dopants in polymer optical fibers (POFs) are summarized, and their refractive index change mechanisms are discussed. Then, several different doping methods to fabricate the photosensitive POFs are presented. Following that, the principles of gratings, including standard fiber Bragg gratings (FBGs), tilted fiber Bragg gratings (TFBGs), chirped fiber Bragg gratings (CFBGs), phase-shifted fiber Bragg gratings (PSFBGs), and long period fiber gratings (LPFGs), are reported. Finally, fabrications of different gratings based on photosensitive POFs in the last 20 years are reported. We present our article clearly and logically, so that it will be helpful for researchers to explore a broad perspective on this proposed topic. Overall, the content provides a comprehensive overview of photosensitive POF fabrications and grating inscriptions in photosensitive POFs, including previous breakthroughs and recent advancements.

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Section: Photosensitive Dopants In Pofsmentioning

confidence: 99%

Section: Fbgs In Pofsmentioning

confidence: 99%

Section: Fbgs In Pofsmentioning

confidence: 99%

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Recent Achievements on Grating Fabrications in Polymer Optical Fibers with Photosensitive Dopants: A Review

et al. 2022

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“…Over the years, the investigations of dopants in PMMA fibers to reduce the attenuation and decrease grating inscription times have led researchers to explore doping the fiber core with a multitude of dopants. Two classical and still widely use core composition are diphenyl sulfide (DPS) to increase the core refractive index and Trans-4-stilbenemethanol (TS) to improve UV photosensitivity [4,7,8], and UV photosensitive benzyl dimethyl ketal (BDK) [9,10]. Historically, a 325 nm laser has been the premium choice to write FBG in POFs as it is well known that PMMA exhibit main chain scission upon irradiation below 300 nm [11,12].…”

Section: Introductionmentioning

confidence: 99%

Impact of high UV fluences on the mechanical and sensing properties of polymer optical fibers for high strain measurements

Bonefacino¹,

Cheng²,

Pun³

et al. 2020

Opt. Express

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PMMA-based fibers are widely studied for strain measurements and show repeatable results for Fiber Bragg Gratings (FBGs) inscribed using 325 nm laser and 248 nm laser. However, there is no available material mechanical behavior characterization of the UV source impact on the fiber properties. In this manuscript, fibers are irradiated with high fluence of 325 nm and 248 nm lasers and the fibers properties are investigated using dynamic mechanical analysis and tensile strain for potential use of these fibers past the yield point. It is demonstrated that the UV sources shifted the ultimate tensile strength and changed the strain hardening behavior. Tensile strain measurements show excellent repeatability for gratings inscribed with these two sources with similar sensitivity of 1.305 nm/mε for FBG inscribe with 325 nm laser, and 1.345 nm/mε for grating written with 248 nm laser in the range 0 to 1.5 % elongation. Furthermore, tests far beyond the yield point (up to 2.8 % elongation) show that grating inscribed with lower UV wavelength exhibit hysteresis. Finally, we demonstrate that 248 nm laser fluence shall be chosen carefully whereas even high 325 nm laser fluence do not critically impact the sensor properties.

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“…In order to increase the optical properties of materials used in optical fiber technology, dopants are applied [18][19][20][21][22][23][24]. According to Sengupta et al, the polymers doped with chlorinated dopants showed no absorption peak and retained the broad windows around the source wavelength.…”

Section: Introductionmentioning

confidence: 99%

Copolymerization and thermal study of the new methacrylate derivative of 2,4,6-trichlorophenol

Demirci

Podkościelna

Bartnicki

et al. 2016

J Therm Anal Calorim

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In this study, 2,4,6-trichlorophenyl methacrylate (TClPhMA) was synthesized by the reaction of methacryloyl chloride with 2,4,6-trichlorophenol in the ice bath condition. The obtained monomer was extracted by chloroform and purified on a chromatography column. In order to confirm the chemical structure of the new compound, spectroscopic studies (ATR-FTIR, 1 H NMR, 13 C NMR and GC-MS) were undertaken. The obtained TClPhMA was copolymerized with commercially available monomers such as methyl methacrylate, styrene, 1,4-divinylbenzene and 2-hydroxymethyl methacrylate. The copolymers were obtained by bulk polymerization in which benzoyl peroxide was used as a free radical initiator. The thermal properties of the copolymers were investigated by differential scanning calorimetry and thermogravimetry.

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Analysis of multimode BDK doped POF gratings for temperature sensing

Cited by 4 publications

References 38 publications

Recent Achievements on Grating Fabrications in Polymer Optical Fibers with Photosensitive Dopants: A Review

Recent Achievements on Grating Fabrications in Polymer Optical Fibers with Photosensitive Dopants: A Review

Impact of high UV fluences on the mechanical and sensing properties of polymer optical fibers for high strain measurements

Copolymerization and thermal study of the new methacrylate derivative of 2,4,6-trichlorophenol

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