Experimental and modeling studies of a Brillouin amplifier

Offenberger, A. A.; Thompson, David C.; Fedosejevs, R.; Harwood, Brian; Santiago, J.; Manjunath, H. R.

doi:10.1109/3.199261

Cited by 14 publications

(8 citation statements)

References 15 publications

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“…In Figs. 1(b)-(d), different realizations are shown, which are suitable for high-energy compression [11], [6], [5], [9]. As a protection against toohigh peak intensities being launched into the generator cell, either an attenuator is introduced [ Fig.…”

Section: A Conceptmentioning

confidence: 99%

“…High-energy SBS compressors presented in literature often do not achieve high efficiencies due to multimode radiation input [6], [7] or they involve complex optical designs of combined SBS cells and laser amplifier stages [5], [4], [6]. In this paper, we present an effective and compact SBS compressor to manipulate Fourier-transform limited pulses of nanosecond duration.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Efficient temporal compression of coherent nanosecond pulses in a compact SBS generator-amplifier setup

Schiemann

Ubachs

Hogervorst

1997

IEEE J. Quantum Electron.

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Abstract-A pulse compressor based on stimulated Brillouin scattering (SBS) in liquids is experimentally and theoretically investigated. It allows for the compression of Fourier-transform limited nanosecond pulses of several hundreds of millijoules of energy with both high conversion efficiency and a high temporal compression factor. The two-cell generator-amplifier arrangement is of a compact design not requiring external attenuation of the generator cell input energy. Pulses from an injectionseeded, frequency-doubled Nd:YAG laser of 300-mJ energy were compressed by a factor variable between 6 and 21 at up to 75% reflectivity. Deviation from unity SBS reflectivity is predominantly determined by optical component losses. The generation of 270-ps pulses with high beam quality was achieved in liquid methanol. These powerful pulses of variable duration are difficult to produce with common laser systems and are highly suited for the generation of high-harmonics in gases.

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Section: A Conceptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient temporal compression of coherent nanosecond pulses in a compact SBS generator-amplifier setup

Schiemann

Ubachs

Hogervorst

1997

IEEE J. Quantum Electron.

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“…Compared with other structures, the obvious advantage of the independent two-cell structure is adjusting the pulse intensity in the two cells arbitrarily, resulting in avoiding nonlinear effects such as an optical breakdown. In the follow-up research, more detailed research and optimization of the optical path structure were carried out to achieve more precise and stable control of the beam intensity [128]. Dane et al added an adjustable delay light path for changing the relative delay time of the seeding pump light and the amplifying pump light in the independent two-cell structure for the first time.…”

Section: Independent Two-cellmentioning

confidence: 99%

Developments of Picosecond Lasers Based on Stimulated Brillouin Scattering Pulse Compression

et al. 2021

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Pulse compression based on stimulated Brillouin scattering (SBS) is a nonlinear optical approach that efficiently converts high-energy nanosecond pulses into the picosecond. Since the first observation of SBS pulse compression, different compression structures for different input and output parameters were developed to optimize the characteristics of pulse compression in the past decades. Here, a comprehensive review of the development status of SBS pulse compression schemes is provided, meanwhile, methods and trends to the optimization of SBS pulse compression are proposed.

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“…In the present study we deal with a nonlinear UV pulse compression, which differ favorably from other methods of generating short pulses using dye lasers or frequency tripling of a Ti: Sapphire laser by its simplicity, availability in terms of the cost and high contrast (the ratio of the peak power of the short pulse to the pre-pulse) determined by threshold nature of nonlinear processes. A nonlinear temporal compression of discharge-pumped KrF laser pulses was investigated through decades in high-pressure SF6 and CH4 gases which are the promising nonlinear matter [11][12][13][14][15][16][17][18][19][20][21]. It was shown that an effective pulse compression with an appropriate increase in a peak power can be obtained via a backward Stimulated Brillouin Scattering (SBS) [12][13][14][15]17,18,21], backward Stimulated Raman Scattering (SRS) [11,16], and their combination in a Four Wave Mixing (FWM) scheme [19,20].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Scattering of the 248-nm Wavelength Light in High-Pressure SF6 and CH4 Gases for a Temporal Compression of 20-Ns KrF Laser Pulse

Zvorykin,

Metreveli,

Smetanin

et al. 2023

Preprint

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Nonlinear compression of narrow-band (Δ ≈ 0.2 cm-1) 20 ns KrF laser pulses in SF6 at 10 atm and CH4 at 50 atm pressure was studied. Both SBS and SRS optically phase conjugated backward reflected radiation was registered with energy reflectivity 10−14% in SF6 and CH4. In SF6 SBS pulses gradually shortened from 10 ns to 2−3 ns with pumping decrease to the SBS threshold ~ 10 mJ, while the SRS pulse had the shortest length of 30−60 ps for the maximal pumping of 120 mJ and broadened near the SRS threshold of ~30 mJ. For the SRS pulse energy ~ 2 mJ peak power 5×107 W was tenfold higher than the pump power. The theoretical model predicted a soliton-like SRS pulse compression to a temporal length of the order of vibrational relaxation time. There was no pulse compression of backward SBS and SRS radiation in CH4, while in the forward direction SRS pulses shortened to 3−4 ns at reduced pumping.

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Experimental and modeling studies of a Brillouin amplifier

Cited by 14 publications

References 15 publications

Efficient temporal compression of coherent nanosecond pulses in a compact SBS generator-amplifier setup

Efficient temporal compression of coherent nanosecond pulses in a compact SBS generator-amplifier setup

Developments of Picosecond Lasers Based on Stimulated Brillouin Scattering Pulse Compression

Nonlinear Scattering of the 248-nm Wavelength Light in High-Pressure SF6 and CH4 Gases for a Temporal Compression of 20-Ns KrF Laser Pulse

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