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Generation of coexisting high-energy pulses in a mode-locked all-fiber laser with a nonlinear multimodal interference technique
Chen, Guangwei1,2; Li, Wenlei1,2; Wang, Guomei1,2; Zhang, Wenfu1,2; Zeng, Chao1,2; Zhao, Wei1,2
Department瞬态光学技术国家重点实验室
2019-02-01
Source PublicationPHOTONICS RESEARCH
ISSN2327-9125
Volume7Issue:2Pages:187–192
Contribution Rank1
Abstract

We demonstrate a passively mode-locked all-fiber laser incorporating a piece of graded-index multimode fiber as a mode-locking modulator based on a nonlinear multimodal interference technique, which generates two types of coexisting high-energy ultrashort pulses [i.e., the conventional soliton (CS) and the stretched pulse (SP)]. The CS with pulse energy as high as 0.38 nJ is obtained at the pump level of 130 mW. When the pump increases to 175 mW, the high-energy SP occurs at a suitable nonlinear phase bias and its pulse energy can reach 4 nJ at a 610 mW pump. The pulse durations of the generated CS and SP are 2.3 ps and 387 fs, respectively. The theory of nonlinear fiber optics, single-shot spectral measurement by the dispersive Fourier-transform technique, and simulation methods based on the Ginzburg-Landau equation are provided to characterize the laser physics and reveal the underlying principles of the generated CS and SP. A rogue wave, observed between the CS and SP regions, mirrors the laser physics behind the dynamics of generating a high-energy SP from a CS. The proposed all-fiber laser is versatile, cost-effective and easy to integrate, which provides a promising solution for high-energy pulse generation. (C) 2019 Chinese Laser Press

DOI10.1364/PRJ.7.000187
Indexed BySCI
Language英语
WOS IDWOS:000457501900013
PublisherOPTICAL SOC AMER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31207
Collection瞬态光学技术国家重点实验室
Corresponding AuthorZeng, Chao
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Guangwei,Li, Wenlei,Wang, Guomei,et al. Generation of coexisting high-energy pulses in a mode-locked all-fiber laser with a nonlinear multimodal interference technique[J]. PHOTONICS RESEARCH,2019,7(2):187–192.
APA Chen, Guangwei,Li, Wenlei,Wang, Guomei,Zhang, Wenfu,Zeng, Chao,&Zhao, Wei.(2019).Generation of coexisting high-energy pulses in a mode-locked all-fiber laser with a nonlinear multimodal interference technique.PHOTONICS RESEARCH,7(2),187–192.
MLA Chen, Guangwei,et al."Generation of coexisting high-energy pulses in a mode-locked all-fiber laser with a nonlinear multimodal interference technique".PHOTONICS RESEARCH 7.2(2019):187–192.
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