High index-contrast all-solid photonic crystal fibers by pressure-assisted melt infiltration of silica matrices

Ning, De; Wondraczek, Lothar; Schmidt, Markus A.; Granzow, Nicolai; Russell, P. St. J.

doi:10.1016/j.jnoncrysol.2010.07.002

Cited by 46 publications

(32 citation statements)

References 47 publications

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“…Filling lengths of a few cm were routinely achieved for filling times of an hour. In all experiments the chalcogenide strand showed bubbles and discontinuities along its entire length, which we attribute to out-gassing due to reboiling [33]. These bubbles were removed by flame-brushing the filled fiber, allowing us to produce cm-long chalcogenide strands continuous in both sections A and B (Fig.…”

Section: Fabricationmentioning

confidence: 83%

Mid-infrared supercontinuum generation in As_2S_3-silica “nano-spike” step-index waveguide

Granzow¹,

Schmidt²,

Chang³

et al. 2013

Opt. Express

102

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Efficient generation of a broad-band mid-infrared supercontinuum spectrum is reported in an arsenic trisulphide waveguide embedded in silica. A chalcogenide "nano-spike", designed to transform the incident light adiabatically into the fundamental mode of a 2-mm-long uniform section 1 µm in diameter, is used to achieve high launch efficiencies. The nano-spike is fully encapsulated in a fused silica cladding, protecting it from the environment. Nano-spikes provide a convenient means of launching light into sub-wavelength scale waveguides. Ultrashort (65 fs, repetition rate 100 MHz) pulses at wavelength 2 µm, delivered from a Tm-doped fiber laser, are launched with an efficiency ~12% into the subwavelength chalcogenide waveguide. Soliton fission and dispersive wave generation along the uniform section result in spectral broadening out to almost 4 µm for launched energies of only 18 pJ. The spectrum generated will have immediate uses in metrology and infrared spectroscopy. in 525-1800nm range with picosecond Yb pumping," Opt. Express 13(2), 377-381 (2005). 14. J. K. Ranka, R. S. Windeler, and A. J. Stentz, "Visible continuum generation in air-silica microstructure optical fibers with anomalous dispersion at 800 nm," Opt. Lett.

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Section: Fabricationmentioning

confidence: 83%

Mid-infrared supercontinuum generation in As_2S_3-silica “nano-spike” step-index waveguide

Granzow¹,

Schmidt²,

Chang³

et al. 2013

Opt. Express

102

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“…In our work, we selected the ternary tellurite glass TeO 2 -ZnONa 2 O with molar ratios of 75:15:10, hereafter referred to as TZN, as the glass matrix. [ 25b ] The viscosity of TZN glass at 550 °C is approximately 5 Pa s (like honey at room temperature), [ 27 ] suggesting the lower doping temperature limit for TZN glass. Together with the maximum doping temperature given by the NCs decomposition temperature, the doping temperature window for directly doping LiYF 4 NCs into TZN glass melt is established to be between 550 °C and 625 °C, the blue region as shown in Figure 2 a.…”

Section: Resultsmentioning

confidence: 99%

Upconversion Nanocrystal‐Doped Glass: A New Paradigm for Photonic Materials

Zhao

Zheng

Schartner

et al. 2016

Advanced Optical Materials

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The integration of novel luminescent nanomaterials into glassy matrix can lead to new hybrid materials and photonic devices with promising material performance and device functions. Lanthanide‐containing upconversion nanocrystals have become unique candidates for sensing, bioimaging, photon energy management, volumetric displays, and other photonic applications. Here, a versatile direct‐doping approach is developed to integrate bright upconversion nanocrystals in tellurite glass with tailored nanoscale properties. Following our two‐temperature glass‐melting technique, the doping temperature window of 550–625 °C and a 5 min dwell time at 577 °C are determined as the key to success, which balances the survival and dispersion of upconversion nanocrystals in glass. It is identified that the fine spectra of upconversion emissions can be used to diagnose the survival and dissolution fraction of doped nanocrystals in the glass. Moreover, 3D dispersion of nanocrystals in the glass is visualized by upconversion scanning confocal microscopy. It is further demonstrated that a low‐loss fiber, drawn from the highly transparent nanocrystals‐doped glass retains the distinct optical properties of upconversion nanocrystals. These results suggest a robust strategy for fabrication of high‐quality upconversion nanocrystal‐doped glasses. The new class of hybrid glasses allows for fiber‐based devices to be developed for photonic applications or as a useful tool for tailoring light–nanoparticles interactions study.

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“…Here we report SC generation from 60 fs pulses at 1550 nm in a dispersion-tuned chalcogenide-silica step-index fiber fabricated by pressure-assisted melt-filling [14][15][16] (Fig. 1a).…”

Section: Introductionmentioning

confidence: 94%

Supercontinuum generation in chalcogenide-silica step-index fibers

et al. 2011

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Abstract:We explore the use of a highly nonlinear chalcogenide-silica waveguide for supercontinuum generation in the near infrared. The structure was fabricated by a pressure-assisted melt-filling of a silica capillary fiber (1.6 µm bore diameter) with Ga 4 Ge 21 Sb 10 S 65 glass. It was designed to have zero group velocity dispersion (for HE 11 core mode) at 1550 nm. Pumping a 1 cm length with 60 fs pulses from an erbium-doped fiber laser results in the generation of octave-spanning supercontinuum light for pulse energies of only 60 pJ. Good agreement is obtained between the experimental results and theoretical predictions based on numerical solutions of the generalized nonlinear Schrödinger equation. The pressure-assisted melt-filling approach makes it possible to realize highly nonlinear devices with unusual combinations of materials. For example, we show numerically that a 1 cm long As 2 S 3 :silica step-index fiber with a core diameter of 1 µm, pumped by 60 fs pulses at 1550 nm, would generate a broadband supercontinuum out to 4 µm. 25-27 (2000). 5. M. Foster and A. Gaeta, "Ultra-low threshold supercontinuum generation in sub-wavelength waveguides," Opt. ©2011 Optical Society of America

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High index-contrast all-solid photonic crystal fibers by pressure-assisted melt infiltration of silica matrices

Cited by 46 publications

References 47 publications

Mid-infrared supercontinuum generation in As_2S_3-silica “nano-spike” step-index waveguide

Mid-infrared supercontinuum generation in As_2S_3-silica “nano-spike” step-index waveguide

Upconversion Nanocrystal‐Doped Glass: A New Paradigm for Photonic Materials

Supercontinuum generation in chalcogenide-silica step-index fibers

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