Wavelength-tunable spatiotemporal mode-locking in a large-mode-area Er:ZBLAN fiber laser at 2.8 µm-Reference-Cited by-同舟云学术

Wavelength-tunable spatiotemporal mode-locking in a large-mode-area Er:ZBLAN fiber laser at 2.8 µm

Published:2024-02-16 Issue:5 Volume:49 Page:1117
ISSN:0146-9592
Container-title:Optics Letters
language:en
Short-container-title:Opt. Lett.

Author:

Zeng Qinghui¹,Tang Ziya¹,Ouyang Deqin,Yu Linpeng¹²,Wang Jiachen¹^ORCID,Luo Xing¹,Dong Wenjun¹,Yan Peiguang¹,Wang Jinzhang¹^ORCID,Wang Pengfei³^ORCID,Lue Qitao⁴,Guo Chunyu¹^ORCID,Ruan Shuangchen¹^ORCID

Affiliation:

1. Shenzhen University

2. Currently with the National Institute for Fusion Science

3. Harbin Engineering University

4. Han’s Laser Technology Industry Group Co., Ltd.

Abstract

We report a tunable spatiotemporally mode-locked large-mode-area Er:ZBLAN fiber laser based on the nonlinear polarization rotation technique. A diffraction grating is introduced to select the operating wavelength. Under the spectral and spatial filtering effects provided by the grating and spatial coupling respectively, stable ps-level spatiotemporally mode-locked pulses around 2.8 µm with a repetition rate of 43.4 MHz are generated. Through a careful adjustment of the grating, a broad wavelength tuning range from 2747 to 2797 nm is realized. To the best of our knowledge, this is the first wavelength-tunable spatiotemporally mode-locked fiber laser in the mid-infrared region.

Funder

National Natural Science Foundation of China

National Key Research and Development Program of China

Shenzhen Science and Technology Program

Publisher

Optica Publishing Group

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