20.6 W Mid-Infrared Supercontinuum Generation in ZBLAN Fiber With Spectrum of 1.9–4.3 μm

Visible to Mid-IR Supercontinuum Generation in Cascaded PCF-Germanate Fiber Using Femtosecond Yb-Fiber Pump

“…Pump Source SC Range Silica PCF [11] Yb-fiber laser 0.4-2.25 μm Silica PCF [12] Yb-fiber laser 0.35-2.4 μm GeO2-doped fiber [20] Er-and Tm-fiber lasers 1-2.6 μm, 1.9-3 μm GeO2-doped fiber [22] Er-fiber laser 0.7-3.2 μm GeO2-doped fiber [23] Er-fiber laser 0.6-3.2 μm GeO2-doped fiber [24] Tm-fiber laser 1.74-3.5 μm GeO2-doped fiber [25] Tm-fiber laser 1.9-3 μm ZBLAN fiber [15] Tm-fiber laser 1.9-3.3 μm ZBLAN fiber [16] Tm-fiber laser 1.9-4.3 μm Silica PCF-GeO2 cascade 1 Yb-fiber laser 0.45-2.95 μm 1 Fibers used in this work.…”

“…SC generation in the range of 0.6-3.3 µm in a telluritetapered suspended core fiber was demonstrated in [14]; however, to achieve this result, the authors used a complicated parametric oscillator generating 200-fs pulses at a wavelength of 1730 nm. A supercontinuum with an average power of tens of watts and a spectral range reaching a wavelength of 4.3 µm was demonstrated in ZBLAN fibers pumped with thulium fiber sources [15,16]. However, the longest wavelength SC sources were built on the basis of chalcogenide fibers [17].…”

26.2-W mid-infrared supercontinuum generation in InF3 fiber

“…As a nonlinear medium with low loss in the spectral range of 2 to 5 μm, fluoride fibers are often used in the construction of MIR-SC laser system. Among them, ZBLAN (ZrF4-BaF2-LaF3-AlF3-NaF) fiber has good power handling capacity with SC spectral range of 2~4 μm [4][5][6] . Due to the increasing intrinsic transmission loss of ZBLAN fiber in the band > 4 μm, the spectral extension towards long-wavelength direction is limited to <4.3 μm for high-power ZBLAN-fiber-based SC lasers.…”

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

“…Fiber-based coherent mid-infrared (MIR) supercontinuum (SC) source has important applications in molecular spectroscopy, biomedicine, optical coherence tomography, remote sensing, national defense and security [1][2][3][4][5][6]. To generate MIR-SC, much attention has been paid to non-silica fibers such as tellurite, fluoride, and chalcogenide fibers with low transmission loss in MIR region [7][8][9][10][11][12][13]. However, the use of these soft fibers as nonlinear medium has limitations of difficult preparation and high cost.…”