Journal
LASER PHYSICS LETTERS
Volume 15, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1612-202X/aac551
Keywords
fiber lasers; nonlinear optical materials; noise-like pulses
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Funding
- National Natural Science Foundation of China (NSFC) [61775107, 61322510]
- National Key Research and Development Program of China [2018YFB0504401, 2018YFB0703501]
- Tianjin Natural Science Foundation, China [16JCZDJC31000]
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We report on a noise-like pulse (NLP) generation in a mode-locked erbium-doped all-fiber laser using a WS2-deposited microfiber saturable absorber (SA). The prepared WS2 SA can serve as an excellent mode-locked and highly nonlinear device in the all-fiber laser cavity. At proper pump power and polarization states, typical NLPs can be generated. Adjusting the polarization also yields special NLPs with second-order harmonic mode-locking. For typical NLPs, 37 mW maximum output power and 8.8 nJ pulse energy are achieved at 334 mW pump power. The microfiber-based WS2 component could be a potential device for exploring nonlinear dynamics, such as NLPs.
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