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

Wei-Wei Ke; Xiao-Jun Wang; Xuan Tang

doi:10.1117/12.2065113

10 February 2015 Effect of acoustic waveguide properties on the Brillouin gain spectrum in multi-mode fibers

Wei-Wei Ke, Xiao-Jun Wang, Xuan Tang

Proceedings Volume 9255, XX International Symposium on High-Power Laser Systems and Applications 2014; 92551A (2015) https://doi.org/10.1117/12.2065113
Event: XX International Symposium on High Power Laser Systems and Applications, 2014, Chengdu, China

Abstract

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.

Citation Download Citation

Wei-Wei Ke, Xiao-Jun Wang, and Xuan Tang "Effect of acoustic waveguide properties on the Brillouin gain spectrum in multi-mode fibers", Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92551A (10 February 2015); https://doi.org/10.1117/12.2065113

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