230 W average-power all-fiber-based actively Q-switched fiber master oscillator–power amplifier

Fang, Qiang; Qin, Yuguo; Wang, Bo; Shi, Wei

doi:10.1364/ao.52.006744

Cited by 13 publications

(9 citation statements)

References 12 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, the pursuit of laser systems combining high-average power and pulse energy has led to studies involving larger core diameter fibers in the main amplifier stage. However, nonlinear effects, particularly Stimulated Raman Scattering (SRS), continue to impact fiber laser output, especially in industrial high-pulsed lasers [2,5,6]. The SRS effect causes nonlinear wavelength shifting when signal power exceeds the SRS threshold [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

15 mJ and high-peak-power nanosecond pulse based on all-fiber MOPA system

Zhang,

Wen,

Liu

et al. 2023

Advanced Lasers, High-Power Lasers, and Applications XIV

View full text Add to dashboard Cite

We present the comprehensive elucidation of an exclusively fiber-based nanosecond Master Oscillator Power Amplifier (MOPA) laser system, integrating a 100-μm-core ytterbium-doped fiber within the primary amplification stage and a 300μm-core Quartz Block Head (QBH) delivery configuration. The laser system hinges upon a diode laser seed, yielding a pulse train with pulse duration of 50 ns and repetition rate of 30 kHz. Consequently, the resultant pulse profile exhibits a final full-width at half-maximum (FWHM) of 8.8 ns, concomitantly achieving a pinnacle power output exceeding 1.5 MW.The average power output attains a magnitude of 456 W, concomitant with a maximal pulse energy of 15.2 mJ. These findings collectively underscore a noteworthy advancement in both average and peak power outputs, notably within the context of narrow pulse durations and low repetition rate regimes.

show abstract

Section: Introductionmentioning

confidence: 99%

15 mJ and high-peak-power nanosecond pulse based on all-fiber MOPA system

Zhang,

Wen,

Liu

et al. 2023

Advanced Lasers, High-Power Lasers, and Applications XIV

View full text Add to dashboard Cite

show abstract

“…However, one of the primary concerns for WPC, which limits its wider application, is its low fire resistance because plastics and wood as organic materials are sensitive to flame. Thus, it is crucial to enhance the fire performance of WPC to accommodate the fire requirements and regulations so as to expand the potential industrial application of WPC [3].…”

Section: Introductionmentioning

confidence: 99%

“…Zinc borate, as a potential filler, has been used to retard the thermal degradation of WPC because of its high thermal stability. Zinc borate helps form a glassy protection layer as a barrier to reduce the heat release rate (HRR) and thus slow the combustion of composites [3,14]. In addition, the combination of boron compounds and APP shows synergistic effects for WPC in flame retardancy [15].…”

Section: Introductionmentioning

confidence: 99%

Comparative mechanical, fire‐retarding, and morphological properties of high‐density polyethylene/(wood flour) composites with different flame retardants

Zhang

Mei

Huang

et al. 2015

Vinyl Additive Technology

View full text Add to dashboard Cite

Aluminum hydroxide, magnesium hydroxide, and 1,2-bis(-pentabromophenyl) ethane were incorporated into highdensity polyethylene (HDPE) and wood flour composites, and their mechanical properties, morphology, and fireretardancy performance were characterized. The addition of flame retardants slightly reduced the modulus of elasticity and modulus of rupture of composites. Morphology characterization showed reduced interfacial adhesion among wood flour, HDPE, and flame retardants in the composites compared with control composites (HDPE and wood flour composites without the addition of flame retardants). The flame retardancy of composites was improved with the addition of the flame retardants, magnesium hydroxide and 1,2-bis(pentabromophenyl) ethane, especially 1,2-bis(pentabromophenyl) ethane, with a significant decrease in the heat release rate and total heat release. Char residue composition and morphology, analyzed by attenuated total reflectance, Fourier-transform infrared spectroscopy, and scanning electron microscopy, showed that the char layer was formed on the composite surface with the addition of flame retardants, which promoted the fire performance of composites. The composites with 10 wt% 1,2-bis(pentabromophenyl) ethane had good fire performance with a continuous and compact char layer on the composite surface. J. VINYL ADDIT. TECHNOL., 00:000-000, 2015.

show abstract

“…However, this laser has relatively poor beam quality due to the fact that a multimode active fiber with ~ 50 μm core was utilized in the final fiber amplifier. We reported a monolithic pulsed fiber laser system with 230 W average power [11]. The Raman scattering appeared due to the very long active fiber, utilized in the final amplifier.…”

Section: Introductionmentioning

confidence: 99%

300-W-average-power monolithic actively Q-switched fiber laser at 1064 nm

Shi¹,

Fang²,

Tian³

et al. 2014

Laser Phys.

Self Cite

View full text Add to dashboard Cite

We demonstrate a high power monolithic nanosecond pulsed fiber laser source at 1064 nm. This laser was configured as a master oscillator-power amplifier (MOPA) seeded by an acousto-optic Q-switched fiber laser with varied pulse duration and repetition rate. Over 300 W average power is achieved for ~ 475 ns pulses at 100 kHz repetition rate with an optical to optical efficiency of 75.4%. The M 2 at both directions is <1.6 measured at the highest average power.

show abstract

230 W average-power all-fiber-based actively Q-switched fiber master oscillator–power amplifier

Cited by 13 publications

References 12 publications

15 mJ and high-peak-power nanosecond pulse based on all-fiber MOPA system

15 mJ and high-peak-power nanosecond pulse based on all-fiber MOPA system

Comparative mechanical, fire‐retarding, and morphological properties of high‐density polyethylene/(wood flour) composites with different flame retardants

300-W-average-power monolithic actively Q-switched fiber laser at 1064 nm

Contact Info

Product

Resources

About