scholarly journals Novel constructions of optical fibers doped with rare – earth ions

2014 ◽  
Vol 62 (4) ◽  
pp. 619-626 ◽  
Author(s):  
J. Dorosz
Keyword(s):  
Rare Earth ◽  
Optical Fiber ◽  
Optical Fibers ◽  
Phase Locking ◽  
Laser Action ◽  
Rare Earth Ions ◽  
Field Pattern ◽  
Sensing Element ◽  
Fiber Technology ◽  
Co Doped

Abstract. In the paper the research on rare-earth doped and co-doped optical fibre conducted in the Laboratory of Optical Fiber Technology at the Bialystok University of Technology is presented. Novel active fibre constructions like multicore, helical-core and side detecting ribbon/core optical fibers were developed with a targeted focus into application. First construction i.e. multicore RE doped optical fibers enable supermode generation due to phase - locking of laser radiation achieved in a consequence of exchanging radiation between the cores during the laser action. In the paper a far - field pattern of 19 - core optical fiber-doped with Yb3+ ions, registered in the MOFPA system, showed centrally located peak of relatively high radiation intensity together with smaller side-lobes. Another new construction presented here is helical-core optical fibers with the helix pitch from several mm and the off-set ranging from 10 μm to 200 μm. The properties of helical-core optical fiber co-doped with Nd3+/Yb3+ were also discussed. In the field of sensor applications novel construction of a sidedetecting luminescent optical fiber for an UV sensor application has been presented. The developed optical fiber with an active core/ribbon, made of phosphate glass doped with 0.5 mol% Tb3+ ions, was used as a UV sensing element.

Thermodynamic Properties of Rare-Earth Ions Doped Lithium-Yttrium-Aluminium-Silicate Glasses

2013 ◽  
Vol 651 ◽  
pp. 232-236 ◽  
Author(s):  
Xiao Zhe Han ◽  
Yu Hua Li ◽  
Tie Cheng Ma ◽  
Zhi Qiang Wang ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Rare Earth ◽  
Thermodynamic Properties ◽  
Optical Fibers ◽  
Crystallization Temperature ◽  
Rare Earth Ions ◽  
Promising Candidate ◽  
Onset Crystallization Temperature ◽  
Yttrium Aluminium ◽  
Co Doped ◽  
Aluminium Silicate

hermodynamic properties including characteristic temperatures and thermal parameters of rare-earth (RE) ions doped lithium-yttrium-aluminium-silicate (LYAS) glasses have been investigated. Glass transition temperature (Tg), onset crystallization temperature (Tx), crystallization temperature (Tc), temperature difference value (DT) and Saad-Poulain criterion (S) in Tm3+/Yb3+ co-doped LYAS glasses are obtained to be 814, 1008, 1043, 194 and 8.34 °C, respectively, and the corresponding values of Sm3+ doped LYAS glasses are derived to be 825, 1002, 1053, 177 and 10.94 °C. Evaluations on thermodynamic properties indicate that LYAS glasses are a promising candidate for drawing optical fibers in the temperature range of 850−950 °C.

Spectrum properties of erbium with other rare-earth ions co-doped optical fiber

2004 ◽  
Author(s):  
Jinyan Li ◽  
Haiqing Li ◽  
Zuowen Jiang ◽  
Xuejun Liu ◽  
Hongbin Yin
Keyword(s):  
Rare Earth ◽  
Optical Fiber ◽  
Rare Earth Ions ◽  
Co Doped

Preparation and Spectral Properties of Er3+/Yb3+ Co-Doped Phosphate Glass Active Optical Fiber

2011 ◽  
Vol 391-392 ◽  
pp. 1022-1026
Author(s):  
Fang Tan ◽  
Feng Xia Yu ◽  
Ling Fei Wang
Keyword(s):  
Rare Earth ◽  
Optical Fiber ◽  
Concentration Ratio ◽  
Fiber Amplifier ◽  
High Gain ◽  
Phosphate Glasses ◽  
Rare Earth Ions ◽  
Energy Transfer Mechanism ◽  
Optical Fiber Amplifier ◽  
Co Doped

High gain, rare-earth ions co-doped multicomponent phosphate glasses with different doped concentration ratio were prepared and investigated by means of absorption and fluorescence spectroscopy in order to investigate the influence of different doped concentration ratio on material optical properties. The main results showed that there was a strongest absorption at 980nm and saturated at 1530nm when Er3+and Yb3+concentration ratio was 4:1, which is the optimum ratio. It is also demonstrated that reaction and energy transfer mechanism between different ions in rare-earth co-doped system, which is significant for their interest in the fields of optical fiber amplifier and laser.

scholarly journals Nano- and Micropatterning on Optical Fibers by Bottom-Up Approach: The Importance of Being Ordered

2021 ◽  
Vol 11 (7) ◽  
pp. 3254
Author(s):  
Marco Pisco ◽  
Francesco Galeotti
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Self Assembly ◽  
Ordered Structures ◽  
Bottom Up ◽  
Photonic Structures ◽  
Fiber Technology ◽  
Optical Fiber Probes ◽  
Fiber Probes ◽  
Self Assembled

The realization of advanced optical fiber probes demands the integration of materials and structures on optical fibers with micro- and nanoscale definition. Although researchers often choose complex nanofabrication tools to implement their designs, the migration from proof-of-principle devices to mass production lab-on-fiber devices requires the development of sustainable and reliable technology for cost-effective production. To make it possible, continuous efforts are devoted to applying bottom-up nanofabrication based on self-assembly to decorate the optical fiber with highly ordered photonic structures. The main challenges still pertain to “order” attainment and the limited number of implementable geometries. In this review, we try to shed light on the importance of self-assembled ordered patterns for lab-on-fiber technology. After a brief presentation of the light manipulation possibilities concerned with ordered structures, and of the new prospects offered by aperiodically ordered structures, we briefly recall how the bottom-up approach can be applied to create ordered patterns on the optical fiber. Then, we present un-attempted methodologies, which can enlarge the set of achievable structures, and can potentially improve the yielding rate in finely ordered self-assembled optical fiber probes by eliminating undesired defects and increasing the order by post-processing treatments. Finally, we discuss the available tools to quantify the degree of order in the obtained photonic structures, by suggesting the use of key performance figures of merit in order to systematically evaluate to what extent the pattern is really “ordered”. We hope such a collection of articles and discussion herein could inspire new directions and hint at best practices to fully exploit the benefits inherent to self-organization phenomena leading to ordered systems.

Tunable emissions via the white region from Sr2Gd8(SiO4)6O2:RE3+ (RE3+: Dy3+, Tm3+, Eu3+) phosphors

2016 ◽  
Vol 40 (7) ◽  
pp. 6214-6227 ◽  
Author(s):  
Gattupalli Manikya Rao ◽  
G. Seeta Rama Raju ◽  
Sk. Khaja Hussain ◽  
E. Pavitra ◽  
P. S. V. Subba Rao ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Host Lattice ◽  
Rare Earth Ions ◽  
White Region ◽  
Light Region ◽  
Trivalent Rare Earth ◽  
Co Doped

Sr2Gd8(SiO4)6O2 is an excellent host lattice for tunable emissions via the white-light region when co-doped with suitable trivalent rare-earth ions.

1.5 – 2.1 μm Broadband ASE in Rare-Earth Co-Doped Glasses and Double-Clad Optical Fibers

2018 ◽  
Author(s):  
Marcin Kochanowicz ◽  
Jacek Zmojda ◽  
Piotr Miluski ◽  
Dariusz Mazur ◽  
Agata Baranowska ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optical Fibers ◽  
Doped Glasses ◽  
Co Doped

scholarly journals Hollow-Core Optical Fibers

Fibers ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 50 ◽  
Author(s):  
Walter Belardi
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Hollow Core ◽  
Fiber Technology ◽  
Scientists And Engineers

The possibility of guiding light in air has fascinated optical scientists and engineers since the dawn of optical fiber technology [...]

scholarly journals Fluoroindate glasses co-doped with Pr3+/Er3+ for near-infrared luminescence applications

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Wojciech A. Pisarski ◽  
Joanna Pisarska ◽  
Marta Kuwik ◽  
Marcin Kochanowicz ◽  
Jacek Żmojda ◽  
...  
Keyword(s):  
Rare Earth ◽  
Near Infrared ◽  
Rare Earth Ions ◽  
Luminescence Spectra ◽  
Nonradiative Relaxation ◽  
Transfer Processes ◽  
Direct Excitation ◽  
Infrared Luminescence ◽  
Doped Glass ◽  
Co Doped

AbstractFluoroindate glasses co-doped with Pr3+/Er3+ ions were synthesized and their near-infrared luminescence properties have been examined under selective excitation wavelengths. For the Pr3+/Er3+ co-doped glass samples several radiative and nonradiative relaxation channels and their mechanisms are proposed under direct excitation of Pr3+ and/or Er3+. The energy transfer processes between Pr3+ and Er3+ ions in fluoroindate glasses were identified. In particular, broadband near-infrared luminescence (FWHM = 278 nm) associated to the 1G4 → 3H5 (Pr3+), 1D2 → 1G4 (Pr3+) and 4I13/2 → 4I15/2 (Er3+) transitions of rare earth ions in fluoroindate glass is successfully observed under direct excitation at 483 nm. Near-infrared luminescence spectra and their decays for glass samples co-doped with Pr3+/Er3+ are compared to the experimental results obtained for fluoroindate glasses singly doped with rare earth ions.

Improved Infrared Emissions of Er3+-Tm3+ Co-Doped Al2O3 Thin Films: The Role of Cross Relaxation Among Rare Earth Ions

2011 ◽  
Vol 11 (12) ◽  
pp. 10673-10676
Author(s):  
Bo Zhou ◽  
Zhisong Xiao ◽  
Lu Yan ◽  
Fang Zhu ◽  
Feng Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Cross Relaxation ◽  
Rare Earth Ions ◽  
Infrared Emissions ◽  
Co Doped
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