Mitigating TMI using Multimode Excitation in Fiber Amplifiers with Gain Saturation

Kabish Wisal; Chun-Wei Chen; Hui Cao; A. Douglas Stone

doi:10.1364/CLEO_SI.2023.SM3L.4

CLEO 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper SM3L.4
•https://doi.org/10.1364/CLEO_SI.2023.SM3L.4

Mitigating TMI using Multimode Excitation in Fiber Amplifiers with Gain Saturation

Kabish Wisal, Chun-Wei Chen, Hui Cao, and A. Douglas Stone

CLEO: Science and Innovations 2023

San Jose, CA United States
7–12 May 2023
ISBN: 978-1-957171-25-8

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Light Propagation in Multi-mode Fibers and Applications - I (SM3L)

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K. Wisal, C. Chen, H. Cao, and A. D. Stone, "Mitigating TMI using Multimode Excitation in Fiber Amplifiers with Gain Saturation," in CLEO 2023, Technical Digest Series (Optica Publishing Group, 2023), paper SM3L.4.

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Abstract

We present a theory of TMI threshold for highly multimode excitations in fiber amplifiers with gain saturation. We show TMI threshold increases 6-fold when all 30-modes are excited equally in a 2D waveguide, compared to fundamental mode-only excitation.

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