All-fiber pulsed Raman source based on Yb:Bi fiber laser

Kurkov, Andrei S; Dvoyrin, Vladislav; Paramonov, V. M.; Medvedkov, O.I.; Dianov, E. M.

doi:10.1002/lapl.200710009

Cited by 36 publications

(20 citation statements)

References 12 publications

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“…However, due to the strong amplified spontaneous emission (ASE) and the following destructive self-oscillation [11], this approach has becoming sparse with further power scaling. To overcome the limitations mentioned above, active fiber with different dopant mechanism and special structure designs were performed previously [12][13][14][15]. Except for power scaling from directly active fiber, as one of the prevailing techniques, narrow-linewidth Raman fiber amplifiers (RFAs) have also been proposed and widely applied in the previous works [1,3,4,16,17].…”

Section: Introductionmentioning

confidence: 99%

Kilowatt-level ytterbium-Raman fiber amplifier with a narrow-linewidth and near-diffraction-limited beam quality

Miao

Liu

et al. 2020

Opt. Lett.

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By focusing on a typical emitting wavelength of 1120 nm as an example, we present the first demonstration of a high-efficiency, narrow-linewidth kilowatt-level all-fiber amplifier based on hybrid ytterbium-Raman (Yb-Raman) gains. Notably, two temporally stable, phase-modulated single-frequency lasers operating at 1064 nm and 1120nm, respectively, were applied in the fiber amplifier, to alleviate the spectral broadening of the 1120 signal laser and suppress the stimulated Brillouin scattering (SBS) effect simultaneously. Over 1 kW narrow-linewidth 1120 nm signal laser was obtained with a slope efficiency of ~ 77% and a beam quality of M2~1.21. The amplified spontaneous emission (ASE) noise in the fiber amplifier was effectively suppressed by incorporating an ASE-filtering system between the seed laser and the main amplifier. Further examination of the influence of power ratios between the two seed lasers on the conversion efficiency had proved that the presented amplifier could work efficiently when the power ratio of 1120 nm seed laser ranged from 31% to 61%. Overall, this setup could provide a well reference for obtaining high power narrow-linewidth fiber lasers operating within 1100-1200 nm.

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Section: Introductionmentioning

confidence: 99%

Kilowatt-level ytterbium-Raman fiber amplifier with a narrow-linewidth and near-diffraction-limited beam quality

Miao

Liu

et al. 2020

Opt. Lett.

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“…Therefore, in order to reach peak powers of a few-hundred Watts with low noise in a compact design, we have developed a pulsed-pump Raman fiber amplifier based on a commercially-available phosphorus-doped fiber [18,19,20,21,22,23,24,25,26]. This fiber has an additional Raman gain band, due to P=O double bonds, at 40±0.3 THz (1330±10 cm −1 ).…”

Section: Introductionmentioning

confidence: 99%

Pulsed-pump phosphorus-doped fiber Raman amplifier around 1260 nm for applications in quantum non-linear optics

Poem,

Golenchenko,

Davidson

et al. 2020

Preprint

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We describe a fiber Raman amplifier for nanosecond and sub-nanosecond pulses centered around 1260 nm. The amplification takes place inside a 4.5-m-long polarization-maintaining phosphorus-doped fiber, pumped at 1080 nm by 3-ns-long pulses with a repetition rate of 200 kHz and up to 1.75 kW peak power. The input seed pulses are of sub-mW peak-power and minimal duration of 0.25 ns, carved off a continuous-wave laser with sub-MHz linewidth. We obtain linearly-polarized output pulses with peakpowers of up to 1.4 kW, corresponding to peak-power conversion efficiency of over 80%. An ultrahigh small-signal-gain of 90 dB is achieved, and the signal-to-noise ratio 3 dB below the saturation power is above 20 dB. No significant temporal and spectral broadening is observed for output pulses up to 400 W peak power, and broadening at higher powers can be reduced by phase modulation of the seed pulse. Thus nearly-transformlimited pulses with peak power up to 1 kW are obtained. Finally, we demonstrate the generation of pulses with controllable frequency chirp, pulses with variable width, and double pulses. This amplifier is thus suitable for coherent control of narrow atomic resonances and especially for the fast and coherent excitation of rubidium atoms to Rydberg states. These abilities open the way towards several important applications in quantum non-linear optics.

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“…Such synchronisation is established through adjusting the Raman laser cavity length so that the Raman laser round-trip time is a multiple of the pumping pulse period. Compared to continuously pumped fibre Raman lasers, those using synchronous pulsed pumping are still much less explored [6][7][8][9], and there is exactly one published study of such a laser in an allfibre configuration with a P 2 O 5 -doped silica fibre [10] where 3-µs pulses at 1254 nm were reported. When a fibre Raman laser is pumped with broad-spectrum pulses (i.e.…”

Section: Introductionmentioning

confidence: 99%

Synchronously pumped picosecond all-fibre Raman laser based on phosphorus-doped silica fibre

Kobtsev¹,

Kukarin²,

Kokhanovskiy³

2015

Opt. Express

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Reported for the first time is picosecond-range pulse generation in an all-fibre Raman laser based on P₂O₅-doped silica fibre. Employment of phosphor-silicate fibre made possible single-cascade spectral transformation of pumping pulses at 1084 nm into 270-ps long Raman laser pulses at 1270 nm. The highest observed fraction of the Stokes component radiation at 1270 nm in the total output of the Raman laser amounted to 30%. The identified optimal duration of the input pulses at which the amount of Stokes component radiation in a ~16-m long phosphorus-based Raman fibre converter reaches its maximum was 140-180 ps.

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All-fiber pulsed Raman source based on Yb:Bi fiber laser

Cited by 36 publications

References 12 publications

Kilowatt-level ytterbium-Raman fiber amplifier with a narrow-linewidth and near-diffraction-limited beam quality

Kilowatt-level ytterbium-Raman fiber amplifier with a narrow-linewidth and near-diffraction-limited beam quality

Pulsed-pump phosphorus-doped fiber Raman amplifier around 1260 nm for applications in quantum non-linear optics

Synchronously pumped picosecond all-fibre Raman laser based on phosphorus-doped silica fibre

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