1  kW, 10  mJ, 120  fs coherently combined fiber CPA laser system

Stark, Henning; Buldt, Joachim; Müller, Michael; Klenke, Arno; Limpert, Jens

doi:10.1364/ol.417032

Cited by 73 publications

(54 citation statements)

References 15 publications

(15 reference statements)

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“…The highest average output power of a coherently beam combined ultrafast fiber laser system, 10.4 kW, with 254 fs pulses at an 80 MHz repetition rate (0.5 GW peak power) was demonstrated in 2020 through the spatial CBC configuration [169]. In addition, recently 1 kW, 10 mJ, 120 fs ultrafast fiber laser system has been reported through the spatial CBC of fiber CPA-systems [176].…”

Section: Spatial Cbcmentioning

confidence: 99%

“…This technique has boosted the amplifying of the ultrafast pulses and has opened new horizons in laser technology, leading to the Nobel prize in physics in the year 2018. The CPA technique allows the achievement of high-power levels, and it is widely utilized in laser systems based on the CBC approach [175,176].…”

Section: Coherent Beam Combining Of Ultrafast Fiber Lasersmentioning

confidence: 99%

“…A combination of polarized beams can be done via polarization beam combiners or thin-film polarizers. Several representatives on power scaling of both CW and pulsed laser via polarization beam combiners have been led to the realization of tens of millijoules energy and kW level average powers [16,104,108,[170][171][172][173][174][175][176]. In 2010, Seise et al in a proof-of-principle experiment demonstrated the combination of two femtosecond fiber lasers with the combining efficiency of 97% [171].…”

mentioning

confidence: 99%

“…In an improvement in the PCFs technology, the large-pitch photonic-crystal fibers (LP-PCFs) concept was introduced for effective single-mode operation in PCF technology for power/energy scaling up [205]. Use of LP-PCFs have resulted in 22 GW peak power [16], 23 mJ single pulse [175], and kW level average power within CBC systems [174,176]. However, the major drawback of PCFs is high bending loss leading to the inconvenient large size of the system.…”

mentioning

confidence: 99%

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

Fathi¹,

Närhi²,

Gumenyuk³

2021

Preprint

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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.

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Section: Spatial Cbcmentioning

confidence: 99%

Section: Coherent Beam Combining Of Ultrafast Fiber Lasersmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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

Fathi¹,

Närhi²,

Gumenyuk³

2021

Preprint

View full text Add to dashboard Cite

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“…Pulsed fiber lasers have exhibited many specific advantages of narrow pulse width and high peak power, which make them own wide applications such as material processing, optical fiber sensing, medical surgery, and free-space communication. [1][2][3][4][5][6][7][8] Passively Q-switched or mode-locked methods, including a saturable absorber (SA) as a nonlinear optical modulator in the laser cavity, have been deeply developed to realize the pulsed laser generation. [9][10][11][12][13][14] To date, significant efforts have been paid to SAs for the high-performance pulsed fiber lasers.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient and Robust Broadband Nano‐VO₂(M) Saturable Absorber for Nonlinear Optics and Ultrafast Photonics

Wang

Chen

Lan

et al. 2021

Advanced Optical Materials

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The metal‐to‐insulator transition behavior and the fast and reversible phase transition behavior in vanadium dioxide (VO2) have attracted widespread attention to study various potential applications. However, few studies have been focused on its nonlinear properties and applications in the pulsed laser field. Here, the authors report the design and synthesis of monoclinic nano‐VO2(M) saturable absorber with broadband absorption which spans the entire near‐infrared region, and high optical nonlinearity which is much higher than those of carbon nanomaterials, gold nanocrystals, and Cu1.8S nanocrystals, as measured in the same condition. The nano‐VO2(M) optical modulators are integrated into the fiber laser cavities, and demonstrate wideband Q‐switching operations at 1, 1.56, and 2 µm and mode‐locking operation at 2 µm, with a pulse duration of 765 fs. This work first reveals the outstanding nonlinear optical properties of nano‐VO2(M) and lays a foundation for its development in advanced nonlinear optical and photonic devices.

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High‐Power Laser Systems

Zuo

Xin

2022

Laser & Photonics Reviews

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High‐power laser sources are widely used in industrial precision processing and act as a new platform for strong‐field physics research using peak power over petawatt. This review focuses on realizing high‐energy solid‐state disk and slab systems and the nonlinear‐suppression strategies for high‐power fiber systems using the functional fibers. First, the implementations and enabling technologies of the solid‐state lasers for increasing peak power from gigawatt to petawatt are reviewed. Then the mechanisms and suppression strategies of the deterioration effects (including stimulated Raman scattering, stimulated Brillouin scattering, and transverse mode instability) in various fiber amplifiers are analyzed. At the same time, the mechanism and achievements of the current functional fibers are introduced. Finally, the challenges and perspectives of high‐power solid‐state and fiber amplifiers are summarized.

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1 kW, 10 mJ, 120 fs coherently combined fiber CPA laser system

Cited by 73 publications

References 15 publications

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

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

Highly Efficient and Robust Broadband Nano‐VO₂(M) Saturable Absorber for Nonlinear Optics and Ultrafast Photonics

High‐Power Laser Systems

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1 kW, 10 mJ, 120 fs coherently combined fiber CPA laser system

Cited by 73 publications

References 15 publications

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

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

Highly Efficient and Robust Broadband Nano‐VO2(M) Saturable Absorber for Nonlinear Optics and Ultrafast Photonics

High‐Power Laser Systems

Contact Info

Product

Resources

About

Highly Efficient and Robust Broadband Nano‐VO₂(M) Saturable Absorber for Nonlinear Optics and Ultrafast Photonics