Revealing the Transition Dynamics from Q Switching to Mode Locking in a Soliton Laser
dc.contributor.author | Liu, Xueming | |
dc.contributor.author | Popa, Daniel | |
dc.contributor.author | Akhmediev, Nail | |
dc.date.accessioned | 2020-06-03T04:12:10Z | |
dc.date.available | 2020-06-03T04:12:10Z | |
dc.date.issued | 2019 | |
dc.date.updated | 2019-12-19T07:15:30Z | |
dc.description.abstract | Q switching (QS) and mode locking (ML) are the two main techniques enabling generation of ultrashort pulses. Here, we report the first observation of pulse evolution and dynamics in the QS-ML transition stage, where the ML soliton formation evolves from the QS pulses instead of relaxation oscillations (or quasicontinuous-wave oscillations) reported in previous studies. We discover a new way of soliton buildup in an ultrafast laser, passing through four stages: initial spontaneous noise, QS, beating dynamics, and ML. We reveal that multiple subnanosecond pulses coexist within the laser cavity during the QS, with one dominant pulse transforming into a soliton when reaching the ML stage. We propose a theoretical model to simulate the spectrotemporal beating dynamics (a critical process of QS-ML transition) and the Kelly sidebands of the as-formed solitons. Numerical results show that beating dynamics is induced by the interference between a dominant pulse and multiple subordinate pulses with varying temporal delays, in agreement with experimental observations. Our results allow a better understanding of soliton formation in ultrafast lasers, which have widespread applications in science and technology. | en_AU |
dc.description.sponsorship | This Letter was partially supported by the National Natural Science Foundation of China under Grants No. 61525505 and No. 11774310. | en_AU |
dc.format.mimetype | application/pdf | en_AU |
dc.identifier.issn | 0031-9007 | en_AU |
dc.identifier.uri | http://hdl.handle.net/1885/204789 | |
dc.language.iso | en_AU | en_AU |
dc.provenance | http://sherpa.ac.uk/romeo/issn/0031-9007/..."author can archive publisher's version/PDF" from SHERPA/RoMEO site (as at 3/06/2020). | en_AU |
dc.publisher | American Physical Society | en_AU |
dc.rights | © 2019 American Physical Society | en_AU |
dc.source | Physical Review Letters | en_AU |
dc.title | Revealing the Transition Dynamics from Q Switching to Mode Locking in a Soliton Laser | en_AU |
dc.type | Journal article | en_AU |
dcterms.accessRights | Open Access | en_AU |
local.bibliographicCitation.issue | 9 | en_AU |
local.bibliographicCitation.lastpage | 093901-6 | en_AU |
local.bibliographicCitation.startpage | 093901-1 | en_AU |
local.contributor.affiliation | Liu, Xueming, Zhejiang University | en_AU |
local.contributor.affiliation | Popa, Daniel, University of Cambridge | en_AU |
local.contributor.affiliation | Akhmediev, Nail, College of Science, ANU | en_AU |
local.contributor.authoremail | u9111648@anu.edu.au | en_AU |
local.contributor.authoruid | Akhmediev, Nail, u9111648 | en_AU |
local.description.notes | Imported from ARIES | en_AU |
local.identifier.absfor | 020502 - Lasers and Quantum Electronics | en_AU |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | en_AU |
local.identifier.ariespublication | u3102795xPUB4475 | en_AU |
local.identifier.citationvolume | 123 | en_AU |
local.identifier.doi | 10.1103/PhysRevLett.123.093901 | en_AU |
local.identifier.scopusID | 2-s2.0-85072015080 | |
local.identifier.uidSubmittedBy | u3102795 | en_AU |
local.publisher.url | https://www.aps.org/ | en_AU |
local.type.status | Published Version | en_AU |
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