Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers

Lichtman, E.; Waarts, R.; Friesem, Asher A.

doi:10.1109/50.17750

Cited by 100 publications

(27 citation statements)

References 5 publications

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“…In particular, this implies that at the critical field (p-4 I and p'-4 1 respectively) the variational result is 0 = -y/2, in good agreement with numerical results, cf Ref. [8,91, whereas the paraxial result reduces to 0=+y/2, i.e. has the wrong sign.…”

supporting

confidence: 65%

OSA Proceedings of the Topical Meeting on Nonlinear Guided-Wave Phenomena Held in Cambridge, England (United Kingdom) on 2-4 September 1991. Volume 15

Quinn¹

1992

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supporting

confidence: 65%

OSA Proceedings of the Topical Meeting on Nonlinear Guided-Wave Phenomena Held in Cambridge, England (United Kingdom) on 2-4 September 1991. Volume 15

Quinn¹

1992

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“…The use of very short (< 10 ns) pump pulse results in the broadening of the acquired gain spectrum, which degrades the accuracy of the measurement. Such spectral broadening is attributed to the fact that the acquired gain spectrum corresponds to the convolution of the natural narrowband BGS with the normalized pump power spectrum [20]. Fig.…”

Section: Principlementioning

confidence: 99%

Time-Domain Distributed Fiber Sensor With 1 cm Spatial Resolution Based on Brillouin Dynamic Grating

Song

Chin

Primerov

et al. 2010

J. Lightwave Technol.

115

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Abstract-We demonstrate an optical time-domain distributed fiber sensor showing the highest spatial resolution ever reported based on Brillouin dynamic grating in a polarization-maintaining fiber. In our scheme, the acoustic gratings containing the information on the local Brillouin frequency are generated by a long pump pulse in one polarization, and read out by a short probe pulse in the orthogonal polarization at a clearly distinct optical frequency from the pump. In the experiment, distributed temperature measurements over a 20 m fiber are performed with 1.2 cm spatial resolution.

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“…(1) and the normalized power spectral density (PSD) of the pump pulse 6 . In the case of using a rectangular pulse (which is the optimal shape to avoid the SPM-induced spectral broadening and gain reduction), the resulting BGS shape can be calculated analytically and represented in a closed-form expression 7 .…”

Section: Gain Reductionmentioning

confidence: 99%

Analytical expression and experimental validation of the Brillouin gain spectral broadening at any sensing spatial resolution

et al. 2017

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A novel and simple analytical expression to describe the Brillouin gain spectral broadening as a function of the spatial resolution in time-domain Brillouin distributed fiber sensors is deduced. The proposed model is experimentally validated using a pump-probe Brillouin sensing setup and also compared with numerical and approximate results. In addition, a compact mathematical form is presented for the peak gain reduction resulting from incomplete acoustic-wave activation in Brillouin sensors with short spatial resolution. Both mathematical expressions can be used together to quantitatively predict the impact of the spatial resolution on the signal-to-noise ratio and frequency uncertainty of the sensor.

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Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers

Cited by 100 publications

References 5 publications

OSA Proceedings of the Topical Meeting on Nonlinear Guided-Wave Phenomena Held in Cambridge, England (United Kingdom) on 2-4 September 1991. Volume 15

OSA Proceedings of the Topical Meeting on Nonlinear Guided-Wave Phenomena Held in Cambridge, England (United Kingdom) on 2-4 September 1991. Volume 15

Time-Domain Distributed Fiber Sensor With 1 cm Spatial Resolution Based on Brillouin Dynamic Grating

Analytical expression and experimental validation of the Brillouin gain spectral broadening at any sensing spatial resolution

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