Study on stimulated Brillouin scattering pulse waveform

Wu-Li-Ji, Hasi; Lü, Zhiwei; Yun-Peng, Teng; Liu, Shujie; Long, Qiang; He, Weihua

doi:10.7498/aps.56.878

Cited by 7 publications

(2 citation statements)

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“…In our experiment, α s = α p = 0.003 cm −1 . [17] Therefore, the thresholds at different concentrations can be obtained after simultaneous Eqs. ( 3) and ( 5) have been solved.…”

Section: Resultsmentioning

confidence: 99%

Stimulated supercontinuum–radiation generation of carbon disulfide by all-trans-β-carotene fluorescence enhancement effect in liquid core optical fibre

et al. 2010

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“…In our experiment, α s = α p = 0.003 cm −1 . [17] Therefore, the thresholds at different concentrations can be obtained after simultaneous Eqs. ( 3) and ( 5) have been solved.…”

Section: Resultsmentioning

confidence: 99%

Stimulated supercontinuum–radiation generation of carbon disulfide by all-trans-β-carotene fluorescence enhancement effect in liquid core optical fibre

et al. 2010

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“…According to Refs. [17,18], the temporal modulation is due to the relaxation oscillation produced by a fast energy interchange mechanism between the Stokes and pump field via the acoustic field when the pump energy is high enough. This further damaged the SBS laser mode.…”

Section: The Relation Between Spontaneous and Pump-depleted Sbs Spectrummentioning

confidence: 99%

Spectrum evolutions of spontaneous and pump-depleted stimulated Brillouin scatterings in liquid media

Gao¹,

Lü²,

He³

et al. 2008

Chinese Phys. B

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A theoretical model for calculating spontaneous and stimulated Brillouin scattering(SBS) spectra is described. An empirical formula for the Stokes output spectral linewidth, a function of spontaneous Brillouin linewidth and the exponential gain coefficient, is obtained by the calculated data fitting. The formula holds true for two cases involving pump undepletion and depletion. The lineshape change from spontaneous to highly pump-depleted SBS spectra is also investigated. The result shows that for the pump power below the SBS threshold, the Stokes output spectral lineshape evolves from Lorentzian to approximately Gaussian as the pump power increases. For the pump power near or beyond the threshold, the SBS spectrum is in the form of a steady Gaussian profile, and the spectral linewidth comes to a certain value about 7 times narrower than the spontaneous one. The theoretical results are experimentally demonstrated by using several common liquid media.

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Stimulated Raman scattering influenced by concentration, fluorescence profile and bandwidth of β‐carotene in liquid‐core optical fiber

Men

Fang

Ding

et al. 2009

J Raman Spectroscopy

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We demonstrated stimulated Raman scattering (SRS) of carbon disulfide (CS 2 ) influenced by β-carotene in a liquid-core optical fiber (LCOF). Owing to the double fluorescence characteristics and large third-order optical nonlinearity of β-carotene, the high-order Stokes lines, such as the seventh-order Stokes line of CS 2 , can be observed at a relatively low input-laser power. The thresholds of Stokes lines lowered with the addition of the carotenoid when the concentration of solution was within 10 −12 and 10 −7 mol/L; the threshold increments and intensities of Stokes lines were correlative with the fluorescence profile of β-carotene: when the fluorescence intensity of the wavenumber region on the spectrum was high, the Stokes line intensity was also high and its threshold increment was small, and vice versa. These results are expected to be worthy of the applications on the tunable laser and the seeding laser.

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Study on stimulated Brillouin scattering pulse waveform

Cited by 7 publications

References 0 publications

Stimulated supercontinuum–radiation generation of carbon disulfide by all-trans-β-carotene fluorescence enhancement effect in liquid core optical fibre

Stimulated supercontinuum–radiation generation of carbon disulfide by all-trans-β-carotene fluorescence enhancement effect in liquid core optical fibre

Spectrum evolutions of spontaneous and pump-depleted stimulated Brillouin scatterings in liquid media

Stimulated Raman scattering influenced by concentration, fluorescence profile and bandwidth of β‐carotene in liquid‐core optical fiber

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