Optimization of optical properties of photonic crystal fibers infiltrated with carbon tetrachloride for supercontinuum generation with subnanojoule femtosecond pulses

Dinh, Quang Ho; Pniewski, Jacek; Van, Hieu Le; Ramaniuk, Aleksandr; Long, Van Cao; Borzycki, Krzysztof; Xuan, Khoa Dinh; Klimczak, Mariusz; Buczyński, Ryszard

doi:10.1364/ao.57.003738

Cited by 35 publications

(38 citation statements)

References 44 publications

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“…Recently, use of liquid-filled PCFs has been received more attention because it overcomes the disadvantages of liquids capillary approach. The obtained results indicated that it is possible to shift the ZDW and match it with a pump wavelength of the high-power commercial laser, as well as obtaining allnormal and flat dispersion regime in the expected spectra (Van et al 2018a;Maji and Chaudhuri 2014;Ding et al 2018). Due to the higher nonlinear refractive index of selected liquids (Ding et al 2018;Kedenburg et al 2014), it is possible to achieve the broadband, coherent SC spectrum either in a few centimeters long liquid-core fiber sample, or with a lower peak power (Van et al 2020).…”

Section: Introductionmentioning

confidence: 87%

“…An alternative solution is liquid-infiltrated optical fibers, as demonstrated in previous research (Zhang et al 2006;Fanjoux et al 2017; Van et al 2018a;Maji and Chaudhuri 2014;Pniewski et al 2016;Ding et al 2018;Lanh et al 2019; Van et al 2020). Unlike silica, nonlinear liquids show high nonlinearity that is comparable with the nonlinear soft glasses (Kedenburg et al 2014).…”

Section: Introductionmentioning

confidence: 96%

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Supercontinuum generation in photonic crystal fibers infiltrated with tetrachloroethylene

Hoang

Nguyen

et al. 2021

Opt Quant Electron

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This study proposes a photonic crystal fiber made of fused silica glass, with the core infiltrated with tetrachloroethylene (C2Cl4) as a new source of supercontinuum (SC) spectrum. We studied numerically the guiding properties of the several different fiber structures in terms of characteristic dispersion, mode area, and attenuation of the fundamental mode. Based on the results, the structural geometries of three C2Cl4-core photonic crystal fibers were optimized in order to support the broadband SC generations. The first fiber structure with lattice constant 1.5 μm and filling factor 0.4 operates in all-normal dispersion. The SC with a broadened spectral bandwidth of 0.8–2 μm is generated by a pump pulse with a central wavelength of 1.56 μm, 90 fs duration and energy of 1.5 nJ. The second proposed structure, with lattice constant 4.0 μm and filling factor 0.45, performs an anomalous dispersion for wavelengths longer than 1.55 μm. With the same pump pulse as the first fiber, we obtained the coherence SC spectrum in an anomalous dispersion range with wavelength range from 1 to 2 μm. Meanwhile, the third selected fiber (lattice constant 1.5 μm, filling factor 0.55) has two zero dispersion wavelengths at 1.04 μm and 1.82 μm. The octave-spanning of the SC spectrum formed in this fiber was achieved in the wavelength range of 0.7–2.4 μm with an input pulse whose optical properties are 1.03 μm wavelength, 120 fs duration and energy of 2 nJ. Those fibers would be good candidates for all-fiber SC sources as cost-effective alternatives to glass core fibers.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 96%

Supercontinuum generation in photonic crystal fibers infiltrated with tetrachloroethylene

Hoang

Nguyen

et al. 2021

Opt Quant Electron

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“…In Refs. [51,52] we proposed PCFs infiltrated with carbon tetrachloride, whereas in Ref. [53] with chloroform.…”

Section: Dispersion and Its Engineering In Pcf Infiltrated With Lmentioning

confidence: 99%

“…In Ref. [51], the proposed PCF consists of eight rings of air-holes ordered in hexagonal lattice. It is made of fused silica glass and the central hole is filled with carbon tetrachloride.…”

Section: Dispersion and Its Engineering In Pcf Infiltrated With Lmentioning

confidence: 99%

“…Then we fabricated this fiber using fused silica capillaries with standard stack-and-draw method described above. In the next, we have used a fusion splicer to close air holes in the photonic cladding as it has been made in our previous paper [51]. Then the fiber was mounted in a custom-made microfluidic reservoir filled with Carbon Tetrachloride.…”

Section: Dispersion and Its Engineering In Pcf Infiltrated With Lmentioning

confidence: 99%

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Supercontinuum Generation in Photonic Crystal Fibers Infiltrated with Liquids

Van

2021

Comm. in Phys.

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In this paper we present the development of a new direction in so-called optofluidics , namely the research of photonic crystal fibers (PCF) infiltrated with liquids. In particular we concentrate on the flagship application of PCF, the process of Supercontinuum Generation (SG), in which injected monochromatic pulse may be dramatically broadened (spectrally), which creates a coherent beam generation of high brightness comparable to that of monochromatic lasers. The supercontinuum is formed when a collection of nonlinear processes act together upon a pump beam in order to cause severe spectral broadening of the original pump beam. Explanation of this process is based on numerical simulations for Generalized Nonlinear Schrödinger equation (GNLSE) which describes the rich nonlinear dynamics of pulse propagation in nonlinear dispersive media. All nonlinear phenomena involved in SG will be analyzed. We present specially activity of the Polish-Vietnamese Group from the beginning in 2016 to recent time in this domain.

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Super‐Continuum Generation in Graphene‐Based Chalcogenide Slot Waveguide

et al. 2021

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Slot waveguides comprised of Ge 23 Sb 7 S 70 and Si with and without graphene are considered for super-continuum generation in the mid-infrared range. The dispersion characteristics are optimized for the proposed waveguides comprised of Si and Ge 23 Sb 7 S 70 chalcogenide as the core and cladding, respectively with and without graphene sheets embedded in the proposed structure. The proposed waveguide without graphene possesses all-normal dispersion and the super-continuum spectra with bandwidth of 1.75 µm is obtained for a pump with wavelength of 2 µm, peak power of 100 W, and time duration of 50 fs, at 20 dB level. Also, the total length of the waveguide is 8 mm. The optimized structure with three graphene sheets presents flat anomalous dispersion and the super-continuum spectra with bandwidth of 3 µm is obtained for a pump with wavelength, peak power, and time duration of 3 µm, 7 mW, and 50 fs, respectively at 10 dB level. It is demonstrated that the proper dispersion region for super-continuum generation depends on the sign of Kerr-index of the nonlinear material. The proposed waveguides are highly compatible with fabrication technologies for mid infrared applications. IntroductionRecently, super-continuum generation (SCG) has attracted a great deal of interest in the design of broadband optical sources. [1] SCG originates from the interaction between diverse nonlinear and linear effects. The nonlinear effects include self-phase modulation (SPM), [2] cross-phase modulation, [3] soliton formation, [4] soliton fission (SF), stimulated Raman scattering, [5] four-wave mixing (FWM), [6,7] and the main linear characteristics are the dispersion and loss. SCG is applicable in optical coherence tomography, spectroscopy, high-precision frequency metrology, and pulse

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Optimization of optical properties of photonic crystal fibers infiltrated with carbon tetrachloride for supercontinuum generation with subnanojoule femtosecond pulses

Cited by 35 publications

References 44 publications

Supercontinuum generation in photonic crystal fibers infiltrated with tetrachloroethylene

Supercontinuum generation in photonic crystal fibers infiltrated with tetrachloroethylene

Supercontinuum Generation in Photonic Crystal Fibers Infiltrated with Liquids

Super‐Continuum Generation in Graphene‐Based Chalcogenide Slot Waveguide

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