Development and research of 2μm tunable thulium-doped fiber laser end-cap based on F-P filter

Miao Yu; Lei Gu; Yu Liu; Kaihui Gu

doi:10.1117/12.3033969

5 July 2024 Development and research of 2μm tunable thulium-doped fiber laser end-cap based on F-P filter

Miao Yu, Lei Gu, Yu Liu, Kaihui Gu

Proceedings Volume 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024); 131830O (2024) https://doi.org/10.1117/12.3033969
Event: The 3rd International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 2024, Wuhan, China

Abstract

To prevent high-power fiber lasers from damaging the end surface of double-clad fibers, a fiber end-cap suitable for F-P filter structure was designed and developed. A fiber fusion splicer using CO₂ laser was utilized to splice the double-clad fiber and the fiber end-cap, and the related splicing techniques and methods were studied. The experimental results showed that by combining a self-made F-P filter with high-reflection and high-transmission spherical fiber end-caps, a continuous 2-micron narrow linewidth tunable laser output power of 75.4W was achieved, with a 3dB spectral linewidth of 0.12nm. The slope efficiency of the thulium-doped double-clad tunable fiber laser was 62.8% with the beam quality of 𝑀²_x = 1.247 and 𝑀²_x = 1.244 with a spliced fiber end-cap. The laser output beam quality did not change with the insertion of the F-P filter and fiber end-caps. This structure effectively reduced the power density at the fiber end face, increased the damage threshold, and did not affect the slope efficiency and beam quality, providing a theoretical and experimental basis for further improving the laser output characteristics.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Miao Yu, Lei Gu, Yu Liu, and Kaihui Gu "Development and research of 2μm tunable thulium-doped fiber laser end-cap based on F-P filter", Proc. SPIE 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 131830O (5 July 2024); https://doi.org/10.1117/12.3033969

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Fiber lasers

Optical filters

Tunable filters

Spherical lenses

Tunable lasers

Gas lasers

Gaussian beams

Show All Keywords

Keywords/Phrases

Search In:

Publication Years