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SnSe<jats:sub>2<\/jats:sub> as a kind of LMC has strong nonlinear optical characteristics. However, its research on dissipative system dynamics as a saturable absorber has not been studied. In this work, we obtained SnSe<jats:sub>2<\/jats:sub> nanosheets using lithium ion intercalation and we reported a passively mode-locked fiber laser with SnSe<jats:sub>2<\/jats:sub> as a saturable absorber to achieve the dissipative soliton in a dissipative system. Due to the high third-order nonlinearity of SnSe<jats:sub>2<\/jats:sub>, the evolution of square wave pulses from 2 to 16 ns was obtained in a fiber ring cavity. Through adjusting the polarization state, the evolution phenomenon of soliton rain, the soliton rain phenomenon with a spectrum of dual-wavelengths, and a bound state harmonic phenomenon with a frequency of 313 MHz were obtained. Therefore, the strong nonlinear fiber laser based on SnSe<jats:sub>2<\/jats:sub> provides a good platform for study the pulsation, explosion, rainfall and other phenomena.<\/jats:p>","DOI":"10.1088\/1361-6528\/abb7b6","type":"journal-article","created":{"date-parts":[[2020,9,11]],"date-time":"2020-09-11T22:30:53Z","timestamp":1599863453000},"page":"165203","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":20,"title":["SnSe<sub>2<\/sub> realizes soliton rain and harmonic soliton molecules in erbium-doped fiber lasers"],"prefix":"10.1088","volume":"32","author":[{"given":"Wenfeng","family":"Luo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoyu","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5600-3820","authenticated-orcid":false,"given":"Xiaohui","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuyuan","family":"Lv","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenxiong","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lu","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhaojiang","family":"Shi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenxi","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2021,2,4]]},"reference":[{"key":"nanoabb7b6bib1","doi-asserted-by":"publisher","first-page":"8","DOI":"10.1002\/adma.201705714","article-title":"Saturable absorption in 2D Ti3C2 mxene thin films for passive photonic diodes","volume":"30","author":"Dong","year":"2018","journal-title":"Adv. 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