Tailoring SBS thresholds using OAM fiber modes (Conference Presentation)

Gautam Prabhakar; Xiao Liu; Siddharth Ramachandran

doi:10.1117/12.2507497

13 March 2019 Tailoring SBS thresholds using OAM fiber modes (Conference Presentation)

Gautam Prabhakar, Xiao Liu, Siddharth Ramachandran

Proceedings Volume 10897, Fiber Lasers XVI: Technology and Systems; 108971P (2019) https://doi.org/10.1117/12.2507497
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

We report stimulated Brillouin scattering (SBS) measurements in orbital angular momentum (OAM) carrying modes of an optical fiber. The additional degree of freedom afforded by angular momentum selectivity leads to new possibilities to control SBS gain. We find that, depending on the OAM value in relation to the polarization state of the launched pump light, the SBS threshold can vary by as much as 2.6 dB, even when normalized for mode area. Combined with their inherently large mode areas and naturally polarization maintaining behavior, OAM fiber modes may offer an alternative means for scaling power in narrow-linewidth fiber lasers.

Conference Presentation

Citation Download Citation

Gautam Prabhakar, Xiao Liu, and Siddharth Ramachandran "Tailoring SBS thresholds using OAM fiber modes (Conference Presentation)", Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108971P (13 March 2019); https://doi.org/10.1117/12.2507497

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