Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

115 W fiber laser with an all solid-structure and a large-mode-area multicore fiber

Not Accessible

Your library or personal account may give you access

Abstract

We investigate mode-area scaling by means of supermode operation in an all-solid multicore fiber. To obtain a large-mode area (LMA), we designed and fabricated an active double-clad multicore fiber, where each ytterbium-doped core is 19 μm in diameter and has a numerical aperture of 0.067, comparable to the core of the largest available commercial LMA fibers. The six large cores are stacked tightly in a ring structure to enable phase locking of the core fields and supermode operation. The fiber laser performance was investigated in a linear laser cavity with an external Talbot resonator for mode selection. The highest output power achieved was 115 W with an overall 61% slope efficiency corresponding to the pump power. The measured M2 was 1.43 for the central lobe with nearly 70% of the total power.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Femtosecond Bragg grating inscription in an Yb-doped large-mode-area multicore fiber for high-power laser applications

Yair Alon, Aviran Halstuch, Raghuraman Sidharthan, Seongwoo Yoo, and Amiel A. Ishaaya
Opt. Lett. 45(16) 4563-4566 (2020)

Phase locking and supermode selection in multicore photonic crystal fiber lasers with a large doped area

L. Michaille, C. R. Bennett, D. M. Taylor, T. J. Shepherd, J. Broeng, H. R. Simonsen, and A. Petersson
Opt. Lett. 30(13) 1668-1670 (2005)

Large-mode-area multicore Yb-doped fiber for an efficient high power 976 nm laser

Huizi Li, Jichao Zang, Sidharthan Raghuraman, Shaoxiang Chen, Charu Goel, Nan Xia, Amiel Ishaaya, and Seongwoo Yoo
Opt. Express 29(14) 21992-22000 (2021)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved