30-W supercontinuum generation based on ZBLAN fiber in an all-fiber configuration

Yang, Linyong; Liu, Ying; Zhang, Bin; Wu, Tianyi; Zhao, Yuchen; Hou, Jing

doi:10.1364/prj.7.001061

Cited by 51 publications

(8 citation statements)

References 21 publications

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“…Therefore, the choice of these fibers is particularly important because it can affect the dynamics and efficiency of SC generation. Generally, fluoride fibers are always chosen as the firststage fiber in the cascading scheme because of the following excellent properties: 1) high damage threshold; 2) generating SC sources with > 3.5 μm long wavelength edge extending above the ZDW of typical step-index fluoride fibers around 1.5 μm; 3) high output power of up to 30 W [18]. Subsequently, this concept has been proved to be feasible by many experimental results [29,[76][77][78][79][80].…”

Section: Pumping Chg Fibers By Cascaded Sc Sourcesmentioning

confidence: 99%

“…Various soft-glass fibers made of fluoride [14][15][16][17][18], tellurite [19,20], and chalcogenide (ChG) glasses [21][22][23][24][25] have been used to generate MIR SCs, and numerous achievements have been accomplished. Fluoride and tellurite are both transparent in the wavelength range of lower than 5.5 μm and thus may cannot be used in relatively long wavelengths.…”

Section: Introductionmentioning

confidence: 99%

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Mid-infrared supercontinuum generation in chalcogenide glass fibers: a brief review

Wang

Dai

2021

PhotoniX

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Chalcogenide (ChG) glasses have the characteristics of a wide transparency window (over 20 μm) and high optical nonlinearity (up to 103 times greater than that of silica glasses), exhibiting great advantages over silica and other soft glasses in optical property at mid-infrared (MIR) wavelength range. These make them excellent candidates for MIR supercontinuum (SC) generation. Over the past decades, great progress has been made in MIR SC generation based on ChG fibers in terms of spectral extension and output power improvement. In this paper, we introduce briefly the properties of ChG glasses and fibers including transmission, nonlinearity, and dispersion, etc. Recent progress in MIR SC generation based on ChG fibers is reviewed from the perspective of pump schemes. We also present novel ChG fibers such as As-free, Te-based, and chalcohalide fibers, which have been explored and employed as nonlinear fibers to achieve broadband SC generation. Moreover, the potential applications of MIR SC sources based on ChG fibers are discussed.

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Section: Pumping Chg Fibers By Cascaded Sc Sourcesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mid-infrared supercontinuum generation in chalcogenide glass fibers: a brief review

Wang

Dai

2021

PhotoniX

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“…Although the dispersive wave and other nonlinear effects can still support the continued broadening of the SC, the effect will not be obvious. Even with a further increase in the pump energy, the SC cannot continue to red-shift due to saturation [41,42]. Figure 12 shows the evolution of the SC spectrum with increasing pump power (P) from 10 kW to 50 kW.…”

Section: Supercontinuummentioning

confidence: 99%

Arsenic Sulfide Suspended-core Fiber Simulation with Three Parabolic Air Holes for Supercontinuum Generation

Peng

Wang

2020

Photonics

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Highly nonlinear suspended-core fibers (SCFs) with tunable dispersion have attracted much attention in the fields of Raman amplification, optical frequency combs, broadband and flat supercontinuum generation (SCG). To address the limitation of applications due to its fragile suspension arms, this study proposes the design of a fiber structure with three parabolic air holes. Numerical simulations are performed to optimize an arsenic sulfide SCF in terms of dispersion management and SCG in the wavelength range from 0.6 µm to 11.6 µm. Results show that the proposed SCF has dual zero-dispersion wavelengths (ZDWs) that can be shifted by adjusting the parabolic coefficient of the air-hole and the equivalent diameter of the suspended core. By means of structural optimization, an SCF with 1 μm equivalent diameter and a parabolic coefficient of 0.18 μm−1 is proposed. The first ZDW of the SCF is blue-shifted to 1.541 μm, which makes it possible to use a commercial light source with a cheaper price, more mature technology and smaller volume as the pump source. SCG is studied by solving the generalized nonlinear Schrödinger equation using the split-step Fourier method, and a 0.6–5.0 μm supercontinuum spectrum is obtained at a pump source peak power of 40 kW.

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“…Fluoride fibers have a phonon energy no higher than 550 cm −1 and have been extensively exploited for highpower MIR SC generation [11][12][13][14][15][16] . Recently, the record power of the ZBLAN-fiber-based SC laser was improved to 30 W, with a spectral coverage of 1.9-3.35 µm [17] . It should be noted that, for all MIR SC lasers based on fluoride fibers, OH − -diffusion-induced end facet damage is a critical issue and should be well settled before such SC lasers can be put into application.…”

Section: Introductionmentioning

confidence: 99%

Record power and efficient mid-infrared supercontinuum generation in germania fiber with high stability

Yang

Zhang

et al. 2022

High Pow Laser Sci Eng

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We report the demonstration of a mid-infrared (MIR) supercontinuum (SC) laser delivering a record-breaking average output power of more than 40 W with a long wavelength edge up to 3.5 μm. The all-fiberized configuration was composed of a thuliumdoped fiber amplifier system emitting broadband spectrum covering 1.9-2.6 μm with pulse repetition rate of 3 MHz, and a short piece of germania fiber. A 41.9 W MIR SC with a whole spectrum of 1.9 to 3.5 μm was generated in a piece of 0.2-m-long germania fiber, with a power conversion efficiency of 71.4%. For an even shorter germania fiber (0.1 m), an SC with even higher output power of 44.9 W (corresponding to a conversion efficiency of 76.5%) was obtained, but the energy conversion towards long wavelength region was slightly limited. A continuous operation for 1 hour with output power of 32.6 W showed outstanding power stability (RMS 0.17%) of the obtained SC laser. To the best of the

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30-W supercontinuum generation based on ZBLAN fiber in an all-fiber configuration

Cited by 51 publications

References 21 publications

Mid-infrared supercontinuum generation in chalcogenide glass fibers: a brief review

Mid-infrared supercontinuum generation in chalcogenide glass fibers: a brief review

Arsenic Sulfide Suspended-core Fiber Simulation with Three Parabolic Air Holes for Supercontinuum Generation

Record power and efficient mid-infrared supercontinuum generation in germania fiber with high stability

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