Specialty fibers for high power lasers and amplifiers

Jayanta K. Sahu; Deepak Jain; Yongmin Jung

doi:10.1117/12.2185165

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7 May 2015 Specialty fibers for high power lasers and amplifiers

Jayanta K. Sahu, Deepak Jain, Yongmin Jung

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Proceedings Volume 9507, Micro-structured and Specialty Optical Fibres IV; 95070F (2015) https://doi.org/10.1117/12.2185165
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

This paper reviews our recent work on novel large-mode area fibers for high power lasers and amplifiers. An ultra-low- NA fiber and single-trench fiber have been proposed for mode area scaling of the fundamental mode. In case of single-trench fiber design, resonant coupling of the higher order modes has been exploited to achieve effective single mode operation in fiber with large effective mode area. Our proposed fiber designs are easy to fabricate using conventional low-loss fiber fabrication techniques, and moreover, being all solid structure, they ensure easy cleaving and splicing. A monolithic and compact high power fiber laser/amplifier device with a good output beam quality can be achieved using Single-trench fiber design.

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Jayanta K. Sahu, Deepak Jain, and Yongmin Jung "Specialty fibers for high power lasers and amplifiers", Proc. SPIE 9507, Micro-structured and Specialty Optical Fibres IV, 95070F (7 May 2015); https://doi.org/10.1117/12.2185165

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