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

All-fiber passively Q-switched laser with flat-top beam emissions

Not Accessible

Your library or personal account may give you access

Abstract

Flat-top beams have plenty of applications in theoretical and applied research, but they are not eigenmodes of the wave equation. Here, we propose an effective strategy for generating flat-top beams in fibers, which originates from the incoherent superposition of orbital angular momentum (OAM) and fundamental (LP01) modes. The designed all-fiber passively Q-switched laser can realize high-quality pulsed flat-top and OAM beam emissions. The normalized root mean square of the flat-top beam is around 4.7%, and the purity of the OAM mode is calculated to be higher than 98%. For the first time to the best of our knowledge, pulsed emission of a flat-top beam is achieved using an all-fiber laser. Moreover, its repetition rate and duration can be controlled by adjusting the pump.

© 2022 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Third-order orbital angular momentum pulse generation from a passively Q-switched fiber laser

Rongli Xiao, Jiajing Tu, Wei Li, Shecheng Gao, Tianjin Wen, Cheng Du, Ji Zhou, Bin Zhang, Weiping Liu, and Zhaohui Li
Opt. Express 30(8) 12605-12614 (2022)

Femtosecond Mamyshev fiber oscillator started by a passively Q-switched microchip laser

Sara Pizzurro, Riccardo Gotti, Luca Carrà, Giuliano Piccinno, Antonio Agnesi, and Federico Pirzio
Opt. Lett. 47(8) 1960-1963 (2022)

Controllable all-fiber orbital angular momentum mode converter

Shuhui Li, Qi Mo, Xiao Hu, Cheng Du, and Jian Wang
Opt. Lett. 40(18) 4376-4379 (2015)

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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 (6)

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

Equations (3)

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

Select as filters


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