Characterization of stimulated Brillouin scattering in a few-mode fiber

Song, Kwang Yong; Kim, Yong Hyun

doi:10.1364/ol.38.004841

Cited by 55 publications

(22 citation statements)

References 11 publications

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“…Recently, there is a growing interest in developing FMFbased distributed fiber sensors, which can attain higher spatial resolution and sensitivity compared with conventional single-mode approaches [51,52]. In particular, Brillouin dynamic gratings (BDG) and Brillouin optical time-domain analysis (BOTDA) thru generating SBS in FMF have been proposed successively for sensing purposes [53,54].…”

Section: Fm-brillouin Sensormentioning

confidence: 99%

Investigation of nonlinear effects in few-mode fibers

2015

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In this work, nonlinear optical effects are exploited for future implementations of space-division multiplexing fiber systems. The paper first presents the fundamentals of intermodal nonlinear phenomena over few-mode fibers, such as cross-phase modulation, four-wave mixing (FWM), stimulated Brillouin scattering and stimulated Raman scattering. Second, the potential applications of fewmode nonlinear effects are discussed for sensing and optical signal processing. We demonstrated how fiber mode symmetries and linear mode coupling affect intermodal power transfer and spectral broadening. Lastly, the paper proposes a ultrafast all-optical simultaneous wavelength and mode conversion scheme based on intermodal FWM, with the capability of switching state of polarization and mode degeneracy orientation. Under this scheme, cross-polarization modulation and cross-mode modulation can be achieved.

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Section: Fm-brillouin Sensormentioning

confidence: 99%

Investigation of nonlinear effects in few-mode fibers

2015

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“…The fiber parameters are rco=5.09µm, NA=0.22, and the laser wavelength is 1550nm. The corresponding experiment has been carried out by Song et al 6 . By comparing with the experiment results, it can be seen that the main characteristics of the BGS profile are reproduced well by the model, especially the multi-peak features.…”

Section: Sbs Model For Mmfmentioning

confidence: 99%

Effect of acoustic waveguide properties on the Brillouin gain spectrum in multi-mode fibers

Wang

Tang

2015

SPIE Proceedings

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With a recent developed mode-coupling model, the Brillouin gain spectra (BGS) of multi-mode fibers (MMF) are investigated and compared with the corresponding experiment. It is found that the calculation results are coincident well with the experiment data. Furthermore, the BGS are found to be very sensitive to the index fluctuation. Such phenomenon is demonstrated by introducing a small index hump or dip in the center of the fiber core. And it can be explained by that the index fluctuation may influence the acoustic mode greatly.

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“…Recent works performed on FMFs have highlighted the potential of exploiting the nonlinear stimulated Brillouin scattering in such fibers towards SDM 16, 17 and fiber-optic sensing applications 3, 18 . In this study, we report the non-destructive nonlinear characterization of vector modes in FMF – excited via a tunable long period fiber grating (LPFG) – by means of their Brillouin gain spectrum (BGS).…”

Section: Introductionmentioning

confidence: 99%

The Brillouin gain of vector modes in a few-mode fiber

Pradhan

Sengupta

Wang

et al. 2017

Sci Rep

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In this work, we demonstrate the measurement of the Brillouin gain spectra of vector modes in a few-mode fiber for the first time using a simple heterodyne detection technique. A tunable long period fiber grating is used to selectively excite the vector modes supported by the few-mode fiber. Further, we demonstrate the non-destructive measurement of the absolute effective refractive indices (n eff) of vector modes with ~10−4 accuracy based on the acquired Brillouin frequency shifts of the modes. The proposed technique represents a new tool for probing and controlling vector modes as well as modes carrying orbital angular momentum in optical fibers with potential applications in advanced optical communications and multi-parameter fiber-optic sensing.

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Characterization of stimulated Brillouin scattering in a few-mode fiber

Cited by 55 publications

References 11 publications

Investigation of nonlinear effects in few-mode fibers

Investigation of nonlinear effects in few-mode fibers

Effect of acoustic waveguide properties on the Brillouin gain spectrum in multi-mode fibers

The Brillouin gain of vector modes in a few-mode fiber

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