Results 1 to 10 of about 234 (184)

Twisted Silica Microstructured Optical Fiber with Equiangular Spiral Six-Ray Geometry [PDF]

Fibers, 2021
This work presents fabricated silica microstructured optical fiber with special equiangular spiral six-ray geometry, an outer diameter of 125 µm (that corresponds to conventional commercially available telecommunication optical fibers of ratified ITU-T ...
Anton V. Bourdine, Alexey Yu. Barashkin, Vladimir A. Burdin, Michael V. Dashkov, Vladimir V. Demidov, Konstantin V. Dukelskii, Alexander S. Evtushenko, Yaseera Ismail, Alexander V. Khokhlov, Artem A. Kuznetsov, Alexandra S. Matrosova, Oleg G. Morozov, Grigori A. Pchelkin, Francesco Petruccione, Airat Zh. Sakhabutdinov, Ghanshyam Singh, Egishe V. Ter-Nersesyants, Manish Tiwari, Elena S. Zaitseva, Vijay Janyani, Juan Yin   +20 more
doaj   +5 more sources

Twisted Silica Few-Mode Hollow GeO₂-Doped Ring-Core Microstructured Optical Fiber

Photonics, 2023
This work presents the first instance of a silica few-mode microstructured optical fiber (MOF) being successfully fabricated with a hollow GeO2-doped ring core and by strongly inducing twisting up to 790 revolutions per meter.
Anton V. Bourdine, Vladimir V. Demidov, Egishe V. Ter-Nersesyants, Grigori A. Pchelkin, Dmitriy N. Shurupov, Alexander V. Khokhlov, Alexandra S. Matrosova, Andrey I. Kashin, Sergei V. Bureev, Michael V. Dashkov, Alexander S. Evtushenko, Elena S. Zaitseva, Azat R. Gizatulin, Ivan K. Meshkov, Amogh A. Dyavangoudar, Ankur Saharia, Manish Tiwari, Alexander A. Vasilets, Vasiliy S. Elagin, Ghanshyam Singh, Konstantin V. Dukelskii   +20 more
doaj   +4 more sources

A Designed Twist Sensor Based on the SPR Effect in the Thin-Gold-Film-Coated Helical Microstructured Optical Fibers. [PDF]

Sensors (Basel), 2022
The traditional optical fiber-based twist sensing has the disadvantage of low sensitivity and difficulty of distinguishing the twist direction. Moreover, chiral isomerism may lead to sensing errors. In this paper, a six-hole helical microstructured optical fiber (HMSF) with a thin-gold-film-coat based on the surface plasmon resonance (SPR) effect was ...
Zhang M, Zhang L, Chen Q, Bai G, Li S.
europepmc   +4 more sources

Six-Core GeO₂-Doped Silica Microstructured Optical Fiber with Induced Chirality

Fibers, 2023
This work presents a fabricated silica few-mode microstructured optical fiber (MOF) with a special six GeO2-doped core geometry, an outer diameter of 125 µm (that corresponds to conventional commercially available telecommunication optical fibers), and ...
Anton V. Bourdine, Vladimir V. Demidov, Konstantin V. Dukelskii, Alexander V. Khokhlov, Egishe V. Ter-Nersesyants, Sergei V. Bureev, Alexandra S. Matrosova, Grigori A. Pchelkin, Artem A. Kuznetsov, Oleg G. Morozov, Ilnur I. Nureev, Airat Zh. Sakhabutdinov, Timur A. Agliullin, Michael V. Dashkov, Alexander S. Evtushenko, Elena S. Zaitseva, Alexander A. Vasilets, Azat R. Gizatulin, Ivan K. Meshkov, Yaseera Ismail, Francesco Petruccione, Ghanshyam Singh, Manish Tiwari, Juan Yin   +23 more
doaj   +2 more sources

Scaling effects in resonant coupling phenomena between fundamental and cladding modes in twisted microstructured optical fibers

Optics Express, 2018
We show that in twisted microstructured optical fibers (MOFs) the coupling between the core and cladding modes can be obtained for helix pitch much greater than previously considered. We provide an analytical model describing scaling properties of the twisted MOFs, which relates coupling conditions to dimensionless ratios between the wavelength, the ...
Maciej Napiorkowski, Waclaw Urbanczyk
exaly   +3 more sources

Helically Twisted Microstructured Polymer Optical Fiber and Its Application as a Torsion and Strain Sensor

Journal of Lightwave Technology
João Preizal, Lucia Bilro, Rogerio N Nogueira   +2 more
exaly   +2 more sources

High-order orbital angular momentum generation in a helically twisted pig-nose-shaped core microstructured optical fiber

Optics Express, 2021
We propose a helically twisted pig-nose-shaped core microstructured optical fiber (HPC-MOF) for orbital angular momentum (OAM) mode generation. It comprises seven air-hole rings hexagonally arranged with two air holes and one air-hole ring replaced, forming two cores in a line 3 µm from the fiber center and one ring-shaped core.
Mingjie Cui, Zhifeng Mo, Nan Zhao, Changming Xia, Zhiyun Hou, Guiyao Zhou   +5 more
openaire   +2 more sources

Stability of grating-based optical fiber sensors at high temperature [PDF]

, 2019
We present a comparison of four different grating-based optical fiber high temperature sensors. Three of the sensors are commercially available and include a heat treated, twisted (chiral) pure-silica microstructured optical fiber, a femtosecond laser ...
Yu, Z., Schartner, E., Otten, D., Lancaster, D.G., Ebendorff-Heidepriem, H., Warren-Smith, S., Nguyen, L.   +6 more
core   +1 more source

Optical gas sensing: a review [PDF]

, 2013
The detection and measurement of gas concentrations using the characteristic optical absorption of the gas species is important for both understanding and monitoring a variety of phenomena from industrial processes to environmental change.
Hodgkinson, Jane, Tatam, Ralph P.
core   +1 more source

Review of long period fiber gratings written by CO₂ laser

, 2010
This paper presents a systematic review of long period fiber gratings (LPFGs) written by the CO2 laser irradiation technique. First, various fabrication techniques based on CO2 laser irradiations are demonstrated to write LPFGs in different types of ...
Yiping Wang, Wang, Yiping
core   +1 more source