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

Power scalability of a continuous-wave high-power Er-Yb co-doped fiber amplifier pumped by Yb-doped fiber lasers

Not Accessible

Your library or personal account may give you access

Abstract

The power scaling of Er-Yb co-doped fiber lasers and amplifiers has been limited by the bottleneck effect of energy-transfer saturation between Yb ions and Er ions. The emerging method of Er-Yb co-doped fiber amplifiers pumped by Yb-doped fiber lasers is considered as an approach to enhance the threshold of the bottleneck effect. In this paper, we quantitatively characterize the threshold of the bottleneck effect via the method of extreme value analysis of the second-order derivative. The method facilitates the optimization of the amplifier configuration. Afterward, we numerically investigate the bottleneck effect of various Er-Yb co-doped fiber amplifiers off-peak cladding-pumped by ${{10}}\!\times\!\!\times \;{\rm{nm}}$ Yb-doped fiber lasers for what we believe, to the best of our knowledge, is the first time. The result shows that the most optimal configuration is long gain fiber over 20 m pumped by a 1020–1025 nm fiber laser, with more than two times the output limit of a conventional laser diode pumping scheme. The essential factors of an amplifier are discussed afterward, including the pump-launching direction, the optimization of large-mode-area fiber, the core-cladding ratio, the concentration of doping ions, the nonlinearity limit, and the distribution of the heat load.

© 2021 Optical Society of America

Full Article  |  PDF Article

Corrections

1 March 2021: A correction was made to the author listing.


More Like This
Numerical comparison of pumping methods for high-power Er/Yb-codoped fiber lasers

Wang Dan, Qun Han, Qing Jia, Kun Ren, and Tiegen Liu
Appl. Opt. 60(9) 2560-2566 (2021)

High-power and high-brightness Er:Yb codoped fiber MOPA operating at 1535 nm

Weilong Yu, Ping Yan, Tiancheng Qi, Yulun Wu, Dan Li, Qirong Xiao, and Mali Gong
Opt. Express 30(10) 16837-16846 (2022)

Resonantly cladding-pumped Yb-free Er-doped LMA fiber laser with record high power and efficiency

Jun Zhang, Viktor Fromzel, and Mark Dubinskii
Opt. Express 19(6) 5574-5578 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

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 (11)

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

Tables (5)

You do not have subscription access to this journal. Article tables 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

Equations (6)

You do not have subscription access to this journal. Equations 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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved