Numerical Studies on Large-Mode Area Fibers With Nanostructured Core for Fiber Lasers

Franczyk, Marcin; Stawicki, Kamil; Lisowska, Jolanta; Michalik, Damian; Filipkowski, Adam; Buczyński, Ryszard

doi:10.1109/jlt.2018.2873164

Cited by 10 publications

(6 citation statements)

References 34 publications

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“…% / 5.5 mol. %, respectively (RE ions concentration of 1.35×10 20 Er 3+ /cm 3 and 14.86×10 20 Yb 3+ /cm 3 ). We measured the absorption coefficient of both doped glasses in the 0.5 mm thick samples within 800-1100nm spectrum.…”

Section: Development Of Nanostructured Fibermentioning

confidence: 99%

“…Thus the refractive index of the nanostructured core material can be averaged over a particular neighborhood inside the material, which results in an effectively continuous-like refractive index profile according to the designed distribution of discrete nanorods. The approach is based on Effective Medium Theory (EMT) and Maxwell-Garnett mixing formula [19] [20].…”

Section: Development Of Nanostructured Fibermentioning

confidence: 99%

“…The material for nanostructured core was developed with the active made-in-house phosphate glass, which was doped with a very high Yb2O3 concentration of 6 mol% (15.69×10 20 Yb 3+ /cm 3 ). The glass material was characterized in detail in the previous work [21].…”

Section: Development Of Nanostructured Fibermentioning

confidence: 99%

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Phosphate glass nanostructured core fiber for laser with dual wavelength emission

Franczyk

Pysz²,

Stępień³

et al. 2022

22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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In recent years the novel active glass materials for optical fibers with broadband emission are of great interest due to potential application in spectroscopy, environmental monitoring or medicine. Development of that kind materials is based on elaborating the glass matrix co-doped with different rare earth ions, e.g. Er, Yb, Ho, Tm. Glasses doped with multiple rare earths characterize with a high number of spectroscopic parameters, due to the presence of energy transfer phenomena between those different rare earth ions. Nonlinear nature of that phenomena varying with the dopants concentration levels, makes the design and development of optical fibers made of glass doped with several active ions not trivial. In this work, we present the nanostructured material composed of several separated glass areas with subwavelength size with individually designed parameters. As a proof-of-concept, we propose the active phosphate fiber with the core consisted of two types of glasses doped with Yb3+ and Er 3+ ions, which exhibit independent performance. The presented phosphate fiber laser operates simultaneously at dual wavelengths at 1.04 μm and 1.535 μm with very good beam quality of M2=1.14 and slope efficiency of 23.0% and 9.8%, respectively. To our knowledge, this kind of fiber has not been demonstrated previously

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Section: Development Of Nanostructured Fibermentioning

confidence: 99%

Section: Development Of Nanostructured Fibermentioning

confidence: 99%

See 1 more Smart Citation

Phosphate glass nanostructured core fiber for laser with dual wavelength emission

Franczyk

Pysz²,

Stępień³

et al. 2022

22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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show abstract

“…It has been shown, that the EMT formulas can be adjusted to better describe the distribution of the effective refractive index of the nanostructure material, which resulted in an arbitrarily designed continuous refractive index profile in free-form components [20]. Nanostructurization also opened new opportunities in the concepts and development of optical fibers with gradient index nanostructured core [21], active fibers [22], or large mode area (LMA) fibers for high-power applications [23].…”

Section: Introductionmentioning

confidence: 99%

Optimization of erbium and ytterbium concentration in nanostructured core fiber for dual-wavelength fiber lasers

Barton,

Franczyk,

Peterka

et al. 2023

Specialty Optical Fibres

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“…Other advantages include the feasibility of development of multicore fibers and large-mode area (LMA) fibers, which are important for power scaling of lasers. Indeed, LMA fibers developed using the nGRIN approach have been reported in our previous works (Franczyk et al 2018;2019).…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum generation in nanostructured core gradient index fibers

Forestier

Karpate

Huss³

et al. 2020

Appl Nanosci

Self Cite

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We report on near-infrared supercontinuum generation in a submeter-long single-mode, nanostructured core fiber. The fiber core is composed of few thousand pure silica and germanium-doped silica glass nanorods with diameter of 200 nm each. The nanorods' distribution is calculated based on the Maxwell-Garnett effective medium approach to mimic effective parabolic refractive index distribution in the fiber core. The standard stack-and-draw method was used to scale down the fiber structure and obtain subwavelength nanorods in the core. Size and distribution of individual nanorods are essential to determine modal and dispersion properties of the fiber without assistance of air holes in the fiber cladding. We study supercontinuum generation performance in this nanostructured core fiber pumping with low-cost microchip laser operating at 1550 nm with 1 ns pulse length and pulse energy of 0.4 µJ. A modulation instability-driven supercontinuum is generated in the fiber, covering a wavelength span of 1400-2300 nm. Due to possibility of dispersion engineering and all-solid structure the nanostructured fibers offer new possibilities for development of low-cost all-fiber supercontinuum light sources for the near-infrared range and cascaded ultrabroadband supercontinuum all-fiber systems.

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Numerical Studies on Large-Mode Area Fibers With Nanostructured Core for Fiber Lasers

Cited by 10 publications

References 34 publications

Phosphate glass nanostructured core fiber for laser with dual wavelength emission

Phosphate glass nanostructured core fiber for laser with dual wavelength emission

Optimization of erbium and ytterbium concentration in nanostructured core fiber for dual-wavelength fiber lasers

Supercontinuum generation in nanostructured core gradient index fibers

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