Infrared supercontinuum generated in concatenated InF3 and As2Se3 fibers

Théberge, F.; Bérubé, Nancy; Poulain, Samuel; Cozic, Solenn; Châtigny, Stéphane; Robichaud, Louis-Rafaël; Pleau, Louis-Philippe; Bernier, Martin; Vallée, Réal

doi:10.1364/oe.26.013952

Cited by 29 publications

(13 citation statements)

References 37 publications

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“…In addition to their transmission, step-index InF 3 fibers exhibit favorable dispersion properties for SC generation when pumped within the Tm gain window, around 2 μm. Finally, for the scheme where fluoride fibers are concatenated with ChG fibers for further infrared extension of the SC [20][21][22], the use of InF 3 fiber instead of ZBLAN can lead to further extension of the MIR SC [30].…”

Section: Resultsmentioning

confidence: 99%

Watt-level and spectrally flat mid-infrared supercontinuum in fluoroindate fibers

Théberge

Bérubé

Poulain³

et al. 2018

Photon. Res.

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We report on infrared supercontinuum (SC) generation in step-index fluoroindate-based fiber by using an all-fiber laser source. In comparison to widely used ZBLAN fibers for high-power mid-infrared (MIR) SC generation, fluoroindate fibers have multiphoton absorption edges at significantly longer wavelengths and can sustain similar intensities. Recent developments highlighted in the present study allowed the production of fluoroindate fibers with MIR background loss of 2 dB/km, which is similar to or even better than ZBLAN fibers. By using an all-fiber picosecond laser source based on an erbium amplifier followed by a thulium power amplifier, we demonstrate the generation of 1.0 W infrared SC spanning over 2.25 octaves from 1 μm to 5 μm. The generated MIR SC also exhibits high spectral flatness with a 6 dB spectral bandwidth from 1.91 μm to 4.77 μm and an average power two orders of magnitude greater than in previous demonstrations with a similar spectral distribution.

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Section: Resultsmentioning

confidence: 99%

Watt-level and spectrally flat mid-infrared supercontinuum in fluoroindate fibers

Théberge

Bérubé

Poulain³

et al. 2018

Photon. Res.

Self Cite

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“…Significant efforts have been devoted to the synthesis of soft glasses for the MIR [45,46], including chalcogenide (arsenic trisulfide As 2 S 3 , arsenic triselenide As 2 Se 3 , germanium arsenic selenide GeAsSe, germanium telluride GeTe, GeAsT-eSe) [43,47,48], tellurite (TeO 2 ) [49], chalcohalides (Ge-Te-AgI) [50], heavy metal oxide (PbO-Bi 2 O 3 -Ga 2 O 3 -SiO 2 -CdO) [51] and ZBLAN (ZrF 4 -BaF 2 -LaF 3 -AlF 3 -NaF) [52][53][54]. Among the large variety of infrared fibers, chalcogenide-glass-based fibers (composed of chalcogen elements such as S, Se or Te) are excellent platforms for SC applications in the MIR due to their wider transmission window, tailorable dispersion, and hundred times larger nonlinearity compared to silica or ZBLAN fibers [43,47,[55][56][57]. Bulk chalcogenide glasses are usually prepared using several techniques such as melt-quenching [46,58] or microwave radiation [59,60] that can be drawn into highly nonlinear step-index fibers [58] or dispersion-tailored PCFs using techniques such as molding [61][62][63], drilling [64] and extrusion [65].…”

Section: A Soft-glass Fibersmentioning

confidence: 99%

Recent Advances in Supercontinuum Generation in Specialty Fiber

Sylvestre¹

2021

Preprint

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The physics and applications of fiber-based supercontinuum (SC) sources have been a subject of intense interest over the last decade, with a significant impact on both basic science and industry. New uses for SC sources are also constantly emerging due to their unique properties that combine high brightness, multi-octave frequency bandwidth, fiber delivery, and single-mode output. The last few years have seen significant research efforts focused on extending the wavelength coverage of SC sources towards the 2 to 20 μm molecular fingerprint mid-infrared (MIR) region and in the ultraviolet (UV) down to 100 nm, while also improving stability, noise, and coherence, output power and polarization properties. Here we review a selection of recent advances in SC generation in a range of specialty optical fibers including fluoride, chalcogenide, telluride, and silicon-core fibers for the MIR; UV-grade silica fibers, liquid-filled and gas-filled hollow-core fibers for the UV range; and all-normal dispersion fibers for ultra-low nose coherent SC generation.

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“…However, most of these mid-IR SC sources have been demonstrated using bulky mid-IR pump sources such as optical parametric oscillators (OPO) and amplifiers (OPA). Mid-IR fiber lasers and cascaded fiber systems have recently emerged as attractive and promising solutions for practical and commercial applications [25][26][27][28][29][30][31][32][33][34][35]. These fiber lasers-based systems indeed open routes to practical, table-top and robust mid-IR supercontinuum sources with high spectral power density.…”

Section: Introductionmentioning

confidence: 99%

Cascaded Fiber-based Mid-Infrared Supercontinuum Source

Sylvestre¹

2020

Preprint

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Mid-infrared supercontinuum (SC) sources in the 2 to 20 µm molecular fingerprint region are in high demand for a wide range of applications including optical coherence tomography, remote sensing, molecular spectroscopy, and hyperspectral imaging. In this work, we investigate mid-IR SC generation in a cascaded silica-ZBLAN-chalcogenide fiber system directly pumped with a commercially-available 460-ps pulsed fiber laser operating in the telecommunications window at 1.55 µm. This fiber-based system is shown to generate a flat broadband mid-IR SC covering the entire range from 2 to 10 µm with several tens of mW of output power. This technique paves the way for low cost, practical, and robust broadband SC sources in the mid-IR without the requirement of mid-infrared pump sources or Thulium-doped fiber amplifiers. We also describe a fully-realistic numerical model used to simulate the nonlinear pulse propagation through the cascaded fiber system and use our numerical results to discuss the physical processes underlying the spectral broadening in the cascaded system. We conclude with recommendations to optimize the current cascaded systems based on the simulation results.

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Infrared supercontinuum generated in concatenated InF₃ and As₂Se₃ fibers

Cited by 29 publications

References 37 publications

Watt-level and spectrally flat mid-infrared supercontinuum in fluoroindate fibers

Watt-level and spectrally flat mid-infrared supercontinuum in fluoroindate fibers

Recent Advances in Supercontinuum Generation in Specialty Fiber

Cascaded Fiber-based Mid-Infrared Supercontinuum Source

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