Numerical simulation of coherent visible-to-near-infrared supercontinuum generation in the CHCl 3 -filled photonic crystal fiber with 1.06 μm pump pulses

Wang, Chuncan; Li, Weimin; Li, Na; Wang, Wenquan

doi:10.1016/j.optlastec.2016.09.020

Cited by 17 publications

(8 citation statements)

References 23 publications

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“…These can be obtained by the proper structure of PCF and type of infiltrating liquid. SG in liquid-filled PCFs has been presented by several groups, and carbon disulfide (CS 2 ), toluene (C 7 H 8 ), carbon tetrachloride (CCl 4 ), ethanol (C 2 H 5 OH), and chloroform (CHCl 3 ) have been shown to be suitable nonlinear liquids for efficient spectral broadening [16][17][18][19][20][21][22][23][24][25][26][27][28]. These liquids have a nonlinear refractive index n 2 higher than that of fused silica (even up to 200 times for CS 2 ) and are transparent in the visible and near-infrared (NIR) range, although some of them are highly toxic and hence have limited applicability.…”

Section: Introductionmentioning

confidence: 99%

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Supercontinuum generation in photonic crystal fibers infiltrated with nitrobenzene

et al. 2020

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A photonic crystal fiber made of fused silica glass and infiltrated with nitrobenzene (C 6 H 5 NO 2 ) was proposed as a new nonlinear medium for supercontinuum generation (SG). The guiding properties of the fiber structure were studied numerically, including estimation of the effective refractive index, attenuation, and dispersion of the fundamental mode. Based on the obtained results, three optimized structures were selected and tested numerically for SG. With numerical simulations of nonlinear propagation, we demonstrated the feasibility of spectrally broad and coherent SG in the proposed structures. For the first we obtained a supercontinuum (SC) in the range of 0.8-1.8 µm, for the second in the range of 0.8-2.1 µm, and for the third 1.3-2.3 µm. The pulse energy was in the range of 0.06-0.5 nJ while the pulse duration was 90 fs or 120 fs. For all structures an SC was formed in the first centimeter of the light propagation and conveniently allowed to assume short segments of the fibers. The proposed fibers are good candidates for all-fiber SC sources constituting an attractive alternative to glass-core fibers, since the nonlinearity of nitrobenzene is significantly higher than that of silica. The proposed solution may lead to new low-cost all-fiber optical systems for SG.

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Section: Introductionmentioning

confidence: 99%

“…It has already been demonstrated that a spectrally broad SG is possible using liquids such as CS 2 [18,19,24], toluene [20], ethanol [21], carbon tetrachloride [22,25], and chloroform [26][27][28]. More complicated theoretical PCFs were also proposed, e.g.…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum generation in photonic crystal fibers infiltrated with nitrobenzene

et al. 2020

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“…A careful choice of the internal structure of a PCF and the type of the liquid allows for an efficient SC generation. In most of the papers presenting SC in liquid-filled PCFs the ultrafast Kerr-nonlinearity of such liquids as carbon disulfide (CS 2 ), toluene (C 7 H 8 ), carbon tetrachloride (CCl 4 ), ethanol (C 2 H 5 OH) or chloroform (CHCl 3 ) are exploited [17][18][19][20][21][22][23][24][25][26][27][28]. The liquids have the nonlinear refractive index n 2 higher than fused silica, even up to 200 times for CS 2 , and are transparent in the visible and near infrared (NIR) wavelength range.…”

Section: Introductionmentioning

confidence: 99%

Optimization of optical properties of photonic crystal fibers infiltrated with chloroform for supercontinuum generation

Lanh¹,

Hoang²,

Long³

et al. 2019

Laser Phys.

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A photonic crystal fiber made of fused silica glass, infiltrated with chloroform (CHCl3), is proposed as a new source of supercontinuum (SC) light. Guiding properties in terms of effective refractive index, attenuation, and dispersion of the fundamental mode are studied numerically. As a result, two optimized structures are selected for and verified against SC generation in detail. The dispersion characteristic of the first structure is all-normal and equals −7 ps · nm−1 · km−1 at 0.92 μm, while the dispersion characteristic of the second structure has the zero-dispersion wavelength at 1 μm, and SC generation was demonstrated for the wavelength 1.03 μm. We prove the possibility of coherent octave-wide SC generation in the wavelength range of 600–1260 nm and soliton fission based low-coherence flat SC in the wavelength range of 600–1400 nm, with 400 fs pulses and 0.8 nJ of energy in-coupled into the core of the studied structures. Proposed fibers are good candidates for all-fiber SC sources as an alternative to glass core fibers, since nonlinearity of CHCl3 is higher than silica and its toxicity is negligible. The proposed solution may lead to new low-cost all-fiber optical systems.

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“…Bethge et al filled the PCF with H 2 O and obtained the SC spectrum of 410-1640 nm experimentally [26]. Wang et al used a 1060 nm pump pulse to numerically study the CHCl 3 -filled silica PCF and obtained a flat visible-near infrared (365-1315 nm) SC spectrum [27]. Junaid et al filled the microstructure fiber with CS 2 and used 30 fs and 90 fs pulse pumps respectively to obtain a SC spectrum of 1-2.2 µm experimentally [28].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of coherent mid-infrared supercontinuum generation based on carbon chloride core tapered photonic crystal fibers

Zhang,

Zhao,

et al. 2023

Laser Phys.

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We numerically studied coherent mid-infrared (MIR) supercontinuum (SC) generated by filling carbon chloride (CCl4, C2Cl4) into the tapered photonic crystal fiber (PCF). The mechanism involves nonlinear soliton compression, Raman soliton self-frequency shift and dispersive wave generated in a carbon chloride core tapered PCF pumped by a 1.98 μm femtosecond laser. Numerical solution of the generalized nonlinear Schrodinger equation shows that 1.15–5.5 μm (CCl4-core tapered PCF) and 1.15–5.7 μm (C2Cl4-core tapered PCF) coherent MIR-SC sources can be realized. Our results show that the above liquid-core tapered PCFs are promising nonlinear media for constructing broadband coherent MIR-SC light sources.

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Numerical simulation of coherent visible-to-near-infrared supercontinuum generation in the CHCl 3 -filled photonic crystal fiber with 1.06 μm pump pulses

Cited by 17 publications

References 23 publications

Supercontinuum generation in photonic crystal fibers infiltrated with nitrobenzene

Supercontinuum generation in photonic crystal fibers infiltrated with nitrobenzene

Optimization of optical properties of photonic crystal fibers infiltrated with chloroform for supercontinuum generation

Numerical simulation of coherent mid-infrared supercontinuum generation based on carbon chloride core tapered photonic crystal fibers

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