Zobrazeno 1 - 10
of 7 038
pro vyhledávání: '"Long-period fiber grating"'
Publikováno v:
Nanophotonics, Vol 13, Iss 16, Pp 2925-2936 (2024)
We propose and demonstrate the simulation and fabrication of an all-fiber orbital angular momentum (OAM) mode converter capable of generating first- to fourth-order modes simultaneously, which is realized by inscribing a cascaded preset-twist long-pe
Externí odkaz:
https://doaj.org/article/86ed92bf2c8a4a3ab7cab6f1e164e0f2
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 19, Iss 2, Pp 252-256 (2024)
ObjectiveAiming at the problem of the narrow dynamic range of current optical fiber displacement sensors, a balloon-like long-period fiber grating (LPFG) displacement sensor with a simple structure and easy preparation method is designed. MethodsBase
Externí odkaz:
https://doaj.org/article/b2e4d47ec95543d3b62020df0b2c3685
Autor:
Haoen Sun, Zaiqiang Gong, Xiangjie Qin, Wenhao Shen, Haiqin Ma, Qiuhong Pan, Chengguo Tong, Cheng Yuan
Publikováno v:
Sensors, Vol 24, Iss 17, p 5621 (2024)
This article presents a long-period fiber-grating sensor based on a congruent quasi-helical structure (CQH-LPFG) with the two-parameter measurement of both temperature and curvature. The CQH-LPFG sensor was manufactured using a high-frequency CO2 las
Externí odkaz:
https://doaj.org/article/54d6ecbe852e4cfc824c84082082a6f5
Publikováno v:
Sensors, Vol 24, Iss 11, p 3397 (2024)
The curing of epoxy resin is a complex thermo-chemical process that is difficult to monitor using existing sensing systems. We monitored the curing process of an epoxy resin by using long-period fiber gratings. The refractive index of the epoxy resin
Externí odkaz:
https://doaj.org/article/2042cab719ad49558e8171b1f4756f1f
Publikováno v:
Sensors, Vol 24, Iss 5, p 1662 (2024)
An optical fiber pH sensor based on a long-period fiber grating (LPFG) is reported. Two oppositely charged polymers, polyethylenimine (PEI) and polyacrylic acid (PAA), were alternately deposited on the sensing structure through a layer-by-layer (LbL)
Externí odkaz:
https://doaj.org/article/79e2644638574fa2bcda8884cee2aacf
Publikováno v:
Nanophotonics, Vol 11, Iss 21, Pp 4889-4898 (2022)
The monitoring and conversion of photonic orbital angular momentum (OAM) play fundamental and important roles for both classic and quantum technologies, especially in low-loss transmission media such as ring-core fibers (RCFs), which make many OAM ap
Externí odkaz:
https://doaj.org/article/173da070e88b4829a6104e63bd466d70
Publikováno v:
Sensors and Actuators Reports, Vol 5, Iss , Pp 100139- (2023)
The rapid and sensitive detection of pepsin plays an important role in clinical and medical practice. A label-free and sensitive micro-tapered long-period fiber grating (MTLPFG) sensor that functionalized by graphene oxide (GO) was proposed for pepsi
Externí odkaz:
https://doaj.org/article/457a53bea3ac4ea2a46d42b93fc6720a
Autor:
Jiaqi Ran, Yarou Chen, Guanhua Wang, Zelan Zhong, Jiali Zhang, Ou Xu, Quandong Huang, Xueqin Lei
Publikováno v:
Photonics, Vol 11, Iss 3, p 223 (2024)
Long-period fiber gratings (LPFGs) functioning as band-reject filters have played a pivotal role in the realm of optical communication. Since their initial documentation in 1996, LPFGs have witnessed rapid advancements in areas such as optical sensin
Externí odkaz:
https://doaj.org/article/638266fa7de1422b845271de2ad76f1a
Publikováno v:
Sensors, Vol 24, Iss 2, p 377 (2024)
We utilized a CO2 laser to carve long-period fiber gratings (LPFGs) on polarization-maintaining fibers (PMFs) along the fast and slow axes. Based on the spectra of LPFGs written along two different directions, we found that when LPFG was written alon
Externí odkaz:
https://doaj.org/article/3e6214bbd9fd4a8fbc221325cc79c1ff
Autor:
Anping Xiao, Jie Du, Qiang Ling, Yao Chen, Zhengtian Gu, Haiyun Chen, Zhangwei Yu, Barerem-Melgueba Mao, Zuguang Guan, Daru Chen
Publikováno v:
Sensors, Vol 24, Iss 1, p 184 (2023)
A high-sensitivity curvature sensor with dual-parameter measurement ability based on angularly cascaded long-period fiber grating (AC-LPFG) is proposed and experimentally demonstrated, which consists of two titled LPFGs (TLPFGs) with different tilt a
Externí odkaz:
https://doaj.org/article/0240160a87d34d8ab61c874b4fb670f9