High power tunable fiber mode selection with a dual-axicon beam expander

Jeff Perkins; Jordan Sweer

doi:10.1117/12.2648044

15 March 2023 High power tunable fiber mode selection with a dual-axicon beam expander

Jeff Perkins, Jordan Sweer

Proceedings Volume 12436, Complex Light and Optical Forces XVII; 124360F (2023) https://doi.org/10.1117/12.2648044
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

The design of a dynamically tunable, dual-axicon beam expander for coupling into higher order modes in standard, large core step-index fiber is presented. A single mode of the optical fiber is excited, allowing bend-resistant propagation and efficient perseveration of brightness for a variety of applications. The coupling from the dual-axicon system is shown to be equivalent to utilizing the standard single axicon coupling system, with improved ease of use. The described optical train utilizes all high-purity fused silica optical components to allow very high peak and average powers for fiber coupling.

Conference Presentation

Citation Download Citation

Jeff Perkins and Jordan Sweer "High power tunable fiber mode selection with a dual-axicon beam expander", Proc. SPIE 12436, Complex Light and Optical Forces XVII, 124360F (15 March 2023); https://doi.org/10.1117/12.2648044

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