Abstract

We present a dual-color-soliton fiber laser at two different wavebands by nonlinear multimode interference. A saturable absorber (SA) with single-mode—multimode (MMF)—single-mode fiber structure is placed in the common branch shared by two sub-cavities. Saturable absorption effects can be simultaneously satisfied at 1.5 and 2 µm at a proper length of the MMF. Dual-color solitons can still remain, even by slightly tuning the length of the MMF. The periodical characteristic of this SA provides a flexible choice of MMF length, making it simple for simultaneous mode locking (SML) at two separate wavebands in practice. Our approach not only paves the way for SML at two or more wavebands by the MMF but also could lead to significant applications in pump-probe spectroscopy.

© 2020 Optical Society of America

Free-running dual-comb fiber laser mode-locked by nonlinear multimode interference

Kangjun Zhao, Hongxiang Jia, Pan Wang, Jingjing Guo, Xiaosheng Xiao, and Changxi Yang
Opt. Lett. 44(17) 4323-4326 (2019)

High-power synchronous multi-wavelength solitons from a multimode mode-locked fiber laser system

Zhaokun Wang, Wendi Wu, Tianyu Zhu, Kuo Hua, Shuo Chang, D. N. Wang, and Feng Gao
Opt. Lett. 46(1) 118-121 (2021)

Passively synchronized dual-color mode-locked fiber lasers based on nonlinear amplifying loop mirrors

Jing Zeng, Bowen Li, Qiang Hao, Ming Yan, Kun Huang, and Heping Zeng
Opt. Lett. 44(20) 5061-5064 (2019)

All-fiber mode-locked ytterbium-doped fiber laser with a saturable absorber based on the nonlinear Kerr beam cleanup effect

Baofu Zhang, Shanchao Ma, Sihua Lu, Qiurun He, Jing Guo, Zhongxing Jiao, and Biao Wang
Opt. Lett. 45(21) 6050-6053 (2020)

Carbon nanotube-synchronized dual-color fiber laser for coherent anti-Stokes Raman scattering microscopy

Yan Li, Kangjun Zhao, Bo Cao, Xiaosheng Xiao, and Changxi Yang
Opt. Lett. 45(12) 3329-3332 (2020)