Investigation of hundred-watt-level supercontinuum generation in photonic crystal fiber

Chen, Hongwei; Guo, Liang; Jin, Aijun; Chen, Shengping; Hou, Jing; Lu, Qiaoyin

doi:10.7498/aps.62.154207

Cited by 7 publications

(5 citation statements)

References 21 publications

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“…Before the compensation of the pulse, the fast modulations are observed around the center wavelength, which is caused by the spectral broadening due to the SPM effect. [19][20][21][22][23] After the chirp compensation, [24] the spectral phase performs like a straight line. However, in the central region, the ripple-shape spectral phase including high-order phase terms is observed and these high-order phase terms are difficult to compensate simply by using the chirped mirrors.…”

Section: Numerical Results and Analysismentioning

confidence: 99%

Picosecond pulses compression at 1053-nm center wavelength by using a gas-filled hollow-core fiber compressor

Huang¹,

Wang²,

Leng³

et al. 2015

Chinese Phys. B

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We theoretically study the nonlinear compression of picosecond pulses with 10-mJ of input energy at the 1053-nm center wavelength by using a one-meter-long gas-filled hollow-core fiber (HCF) compressor and considering the third-order dispersion (TOD) effect. It is found that when the input pulse is about 1 ps/10 mJ, it can be compressed down to less than 20 fs with a high transmission efficiency. The gas for optimal compression is krypton gas which is filled in a HCF with a 400-µm inner diameter. When the input pulse duration is increased to 5 ps, it can also be compressed down to less than 100 fs efficiently under proper conditions. The results show that the TOD effect has little impact on picosecond pulse compression and the HCF compressor can be applied on compressing picosecond pulses efficiently with a high compression ratio, which will benefit the research of high-field laser physics.

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Section: Numerical Results and Analysismentioning

confidence: 99%

Picosecond pulses compression at 1053-nm center wavelength by using a gas-filled hollow-core fiber compressor

Huang¹,

Wang²,

Leng³

et al. 2015

Chinese Phys. B

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show abstract

“…Then, the output pulses from the HCF are collimated and directed to chirped mirrors for compensation. [26,27] While this method is an established technique, the energy of the input pulse is limited to several mJ to reduce the ionization effects at the inlet of the HCF, which deteriorates the transmission efficiency and the beam profile. Next, a pressure gradient hollow waveguide compressor is used to generate ultra-intense few-cycle linearly polarized (LP) pulses in the experiment.…”

Section: Introductionmentioning

confidence: 99%

Energetic few-cycle pulse compression in gas-filled hollow core fiber with concentric phase mask*

et al. 2019

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The compression of high-energy, linearly polarized pulses in a gas-filled hollow core fiber (HCF) by using a concentric phase mask is studied theoretically. Simulation results indicate that using a properly designed concentric phase mask, a 40-fs input pulse centered at 800 nm with energy up to 10.0 mJ can be compressed to a full width at half maximum (FWHM) of less than 5 fs after propagating through a neon-filled HCF with a length of 1 m and diameter of 500 μ m with a transmission efficiency of 67%, which is significantly higher than that without a concentric phase mask. Pulses with energy up to 20.0 mJ can also be efficiently compressed to less than 10 fs with the concentric phase mask. The higher efficiency due to the concentric phase mask can be attributed to the redistribution of the transverse intensity profile, which reduces the effect of ionization. The proposed method exhibits great potential for generating few-cycle laser pulse sources with high energy by the HCF compressor.

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“…Good results are obtained by different kinds of fiber lasers: continuous lasers, [4,5] nanosecond pulse lasers, [6,7] and picosecond/femtosecond pulse lasers. [8][9][10][11] Some of them have reached hectowatt scale. [4,8,9] Compared with continuous laser, picosecond/femtosecond pulsed laser has more advantages because it has much higher peak power to induce stronger nonlinear effects for wider spectrum.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11] Some of them have reached hectowatt scale. [4,8,9] Compared with continuous laser, picosecond/femtosecond pulsed laser has more advantages because it has much higher peak power to induce stronger nonlinear effects for wider spectrum. However, the nonlinear effects resulting from the femtosecond pulsed laser are always too strong to keep the pulse trains stable.…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum generation in seven-core photonic crystal fiber pumped by a broadband picosecond pulsed fiber amplifier

Xiao

et al. 2017

Chinese Phys. B

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We report a supercontinuum source generated in seven-core photonic crystal fibers (PCFs) pumped by a self-made all-fiber picosecond pulsed broadband fiber amplifier. The amplifier's output average power is 60 W at 1150 nm with spectral width of 260 nm, and its repetition rate is 8.47 MHz with pulse width of 221 ps. With two different lengths of seven-core PCF, different output powers and spectra are obtained. When a 10 m long seven-core PCF is chosen, the output supercontinuum covers the wavelength range from 620 nm to 1700 nm, with the output power of 11.7 W. With only 2 m long seven-core PCF used in the same experiment, the wavelength of the supercontinuum spans from 680 nm to 1700 nm, with the output power of 20.4 W. The results show that the pulse width is 385 ps in the 10 m long seven-core PCF and 255 ps in the 2 m long one, respectively, due to the normal dispersion of the PCF.

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Investigation of hundred-watt-level supercontinuum generation in photonic crystal fiber

Cited by 7 publications

References 21 publications

Picosecond pulses compression at 1053-nm center wavelength by using a gas-filled hollow-core fiber compressor

Picosecond pulses compression at 1053-nm center wavelength by using a gas-filled hollow-core fiber compressor

Energetic few-cycle pulse compression in gas-filled hollow core fiber with concentric phase mask*

Supercontinuum generation in seven-core photonic crystal fiber pumped by a broadband picosecond pulsed fiber amplifier

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