Four-wave mixing effect on high-power continuous-wave all-fiber lasers

Zheng, Jinkun; Zhao, Wei; Zhao, Baoyin; Li, Zhe; Li, Gang; Gao, Qi; Ju, Pei; Gao, Wei; She, Shengfei; Wu, Peng

doi:10.1142/s0217984918502755

Cited by 10 publications

(3 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the Stokes light and anti-Stokes light were also amplified with the enhancement of the nonlinear interaction. But the Stokes line and anti-Stokes line were unequally which can be attributed to the SRS effect [25]. With the forward pump light of 1765 W added, that is a total pump power of 7000 W, the output power reached the maximum value of 6020 W with SRR of 27 dB.…”

Section: Resultsmentioning

confidence: 99%

6 kW Single Stage Narrow Linewidth Fiber Amplifier Based on the Balance Between Mode Instability and Nonlinear Effects

Tian,

Rao,

Wang

et al. 2023

IEEE Photonics J.

View full text Add to dashboard Cite

Single-stage high-power narrow-linewidth fiber laser has been investigated intensively recently because of its simple and robust configuration and great potential in spectral/coherent beam combination. In this work, a 6 kW narrow-linewidth fiber amplifier was experimentally achieved based on a fiber oscillator seed. By employing a few-mode ytterbium-doped fiber, the spectral broadening and SRS effects are both significantly mitigated. Combined with a wavelength-stabilized 981 nm pump source, the threshold of transverse mode instability is improved, then, a maximum output power of 6020 W at the central wavelength 1080 nm was achieved with 3-dB bandwidth of ~0.37 nm and optical-to-optical efficiency of ~85.6%. The mode instability and nonlinear effects were balanced well. The measured beam quality and the signal to Raman ratio were M 2 ~2.7 and ~27 dB, respectively. This work shows the great potential of such amplification structure for the power scaling of high-power narrow-linewidth fiber lasers.

show abstract

Section: Resultsmentioning

confidence: 99%

6 kW Single Stage Narrow Linewidth Fiber Amplifier Based on the Balance Between Mode Instability and Nonlinear Effects

Tian,

Rao,

Wang

et al. 2023

IEEE Photonics J.

View full text Add to dashboard Cite

show abstract

“…Indeed, the phase-matching condition in MM fibers can easily be satisfied, because different frequencies can propagate in different modes with the appropriate group velocity. Therefore, in high-power fiber lasers, which are based on LMA fibers, FWM can arise when the phase-matching condition is satisfied between the fundamental and highorder transverse modes [64]. It is worth mentioning that the phase-matching condition can also be met in anomalous dispersion regime fibers, which is to be considered when working with Erbium-and Thulium-doped fiber amplifiers.…”

mentioning

confidence: 99%

Towards Ultimate High-Power Scaling: Coherent Beam Combining of Fiber Lasers

2021

View full text Add to dashboard Cite

Fiber laser technology has been demonstrated as a versatile and reliable approach to laser source manufacturing with a wide range of applicability in various fields ranging from science to industry. The power/energy scaling of single-fiber laser systems has faced several fundamental limitations. To overcome them and to boost the power/energy level even further, combining the output powers of multiple lasers has become the primary approach. Among various combining techniques, the coherent beam combining of fiber amplification channels is the most promising approach, instrumenting ultra-high-power/energy lasers with near-diffraction-limited beam quality. This paper provides a comprehensive review of the progress of coherent beam combining for both continuous-wave and ultrafast fiber lasers. The concept of coherent beam combining from basic notions to specific details of methods, requirements, and challenges is discussed, along with reporting some practical architectures for both continuous and ultrafast fiber lasers.

show abstract

“…Indeed, the phase-matching condition in MM fibers can easily be satisfied, because different frequencies can propagate in different modes with the appropriate group velocity. So, in high power fiber lasers which are based on LMA fibers, FWM can arise when the phase-matching condition is satisfied between the fundamental and high-order transverse modes [64]. It is worth mentioning that the phase-matching condition can also be met in anomalous dispersion regime fibers, which is to be considered when working with Erbium and Thulium doped fiber amplifiers.…”

mentioning

confidence: 99%

Towards Ultimate High-power Scaling: Coherent Beam Combing of Fiber Lasers

Fathi¹,

Närhi²,

Gumenyuk³

2021

Preprint

View full text Add to dashboard Cite

Fiber laser technology has been demonstrated as a versatile and reliable approach for laser source manufacturing with a wide range of applicability in various fields ranging from science to industry. The power/energy scaling of single fiber laser systems has faced several fundamental limitations. To overcome them and to boost the power/energy level even further, combining the output powers of multiple lasers has become the primary approach. Among various combining techniques, the coherent beam combining of fiber amplification channels is the most promising approach, instrumenting ultra-high power/energy lasers with near-diffraction-limited beam quality. This paper provides a comprehensive review of the progress of coherent beam combining for both continuous-wave and ultrafast fiber lasers. The concept of coherent beam combining from basic notions to specific details of methods, requirements, and challenges are discussed, along with reporting some practical architectures for both continuous and ultrafast fiber lasers.

show abstract

Four-wave mixing effect on high-power continuous-wave all-fiber lasers

Cited by 10 publications

References 40 publications

6 kW Single Stage Narrow Linewidth Fiber Amplifier Based on the Balance Between Mode Instability and Nonlinear Effects

6 kW Single Stage Narrow Linewidth Fiber Amplifier Based on the Balance Between Mode Instability and Nonlinear Effects

Towards Ultimate High-Power Scaling: Coherent Beam Combining of Fiber Lasers

Towards Ultimate High-power Scaling: Coherent Beam Combing of Fiber Lasers

Contact Info

Product

Resources

About