Combined supercontinuum source with &gt;200 W power using a 3 × 1 broadband fiber power combiner

Zhou, Hang; Jin, Aijun; Chen, Z; Zhang, B; Zhou, Xin; Chen, S; Hou, Jing; Chen, J

doi:10.1364/ol.40.003810

Cited by 18 publications

(5 citation statements)

References 18 publications

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“…Nevertheless, the 980 nm SFS realized in this study can also be used as a pump source or high-power broadband tunable source operating around 980 nm. Besides, whereas here the combined output power in the SFS is provided by the forward and backward output beams, the two output beams can also be combined with the help of a fiber beam combiner [38][39][40]. Studies on such beam quality improvement and beam combination will be carried out in the future.…”

Section: Discussionmentioning

confidence: 99%

Experimental study on high-power all-fiber superfluorescent source operating near 980 nm

et al. 2018

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A high-power all-fiber superfluorescent source operating near 980 nm is experimentally studied with the help of a large-core distributed side-coupled cladding-pumped Yb-doped fiber. By optimizing the active fiber length and the angle cleaving of the output fiber facet, a 10 W all-fiber superfluorescent source operating near 980 nm is demonstrated for the first time, to the best of our knowledge. An 11.4 W combined 980 nm ASE power is obtained with a 9.3% slope efficiency and an 18 dB suppression of the ASE around 1030 nm. The output spectrum spans 973 nm to 982 nm with the 3 dB bandwidth around 3.5 nm. A 10.5 W output power with 13.1% slope efficiency is also obtained by changing the length of the active fiber. The variations of the output power and spectrum with the active fiber length and pump power are also investigated in the experiment.

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Section: Discussionmentioning

confidence: 99%

Experimental study on high-power all-fiber superfluorescent source operating near 980 nm

et al. 2018

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“…The pump lasers are first combined into six groups with four pump combiners ( , homemade; see Ref. [39] and related literature). The input and output fibers of the pump combiner exhibit (0.08 NA) and (0.22 NA) core diameters, respectively.…”

Section: Methodsmentioning

confidence: 99%

In-band pumping avenue based high power superfluorescent fiber source with record power and near-diffraction-limited beam quality

et al. 2018

High Pow Laser Sci Eng

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High power superfluorescent fiber sources (SFSs), which could find wide applications in many fields such as middle infrared laser generation, Raman fiber laser pumping and spectral beam combination, have experienced a flourishing time in recent years for its unique properties, such as short coherence length and high temporal stability. The challenge for performance scalability of powerful SFS mainly lies on the physical issues including parasitic laser oscillation and modal instability (MI). In this contribution, by employing in-band pumping avenue and high-order transverse-mode management, we explore a high power SFS with record power, near-diffraction-limited beam quality and spectral manipulation flexibility. An ultimate output power of 3.14 kW can be obtained with high temporal stability and a beam quality of M 2 = 1.59 for the amplified light. Furthermore, the dynamics of spectral evolutions, including redshifting of central wavelength and unsymmetrical broadening in spectral wings, of the main amplifier with different seed linewidths are investigated contrastively. Benefiting from the unique high pump brightness and high MI threshold of in-band pumping scheme, the demonstrated system also manifests promising performance scaling potential.

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“…In this case the authors used input fibers with much larger cladding diameter (400 µm); this diameter can be decreased by chemical etching. The signal power combiner fabricated in 3 × 1 configuration presented in [81] was used to incoherently combine a supercontinuum source with power above 200 W. Because photonic crystal fibers have unique features which classical fibers do not have (e.g., high birefringence, larger single-mode areas, extremely low/high nonlinearity, and, in the case of hollow-core PCF, high damage threshold), therefore it is profitable to use PCF in components operating at high-power kW regimes; some theoretical and experimental achievements in this field have already been reported [85][86][87].…”

Section: Signal Power Combinersmentioning

confidence: 99%

High-Power Passive Fiber Components for All-Fiber Lasers and Amplifiers Application—Design and Fabrication

Stachowiak

2018

Photonics

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The most important components for application in high-power all-fiber lasers and amplifiers are, most of all, power combiners, but also mode field adaptors. This paper summarizes recent achievements in the area of development and fabrication of high-power passive fiber components. The principles of operation and basic design and fabrication criteria, which have to be taken into account while designing the aforementioned components, are explained in detail. The most recent impressive achievements are summarized and described.

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Combined supercontinuum source with >200 W power using a 3 × 1 broadband fiber power combiner

Cited by 18 publications

References 18 publications

Experimental study on high-power all-fiber superfluorescent source operating near 980 nm

Experimental study on high-power all-fiber superfluorescent source operating near 980 nm

In-band pumping avenue based high power superfluorescent fiber source with record power and near-diffraction-limited beam quality

High-Power Passive Fiber Components for All-Fiber Lasers and Amplifiers Application—Design and Fabrication

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