Journal
INFRARED PHYSICS & TECHNOLOGY
Volume 125, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.infrared.2022.104302
Keywords
Synchronously pumped mode-locked fiber lasers; Dissipative solitons; Cross-phase modulation
Categories
Funding
- National Natural Science Foundation of China [61975136, 61935014, 62105222, 61775146, 61905151]
- Guangdong Basic and Applied Basic Research Foundation [2019A1515010699]
- Shenzhen Science and Technology Program [JCYJ20210324094400001, CJGJZD20200617103003009]
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This study demonstrates the successful realization of a synchronously pumped mode-locked ytterbium-doped fiber laser and investigates the mechanism of this mode-locking technique. The laser exhibits high performance and environmental stability, providing a potential strategy for achieving high-performance ultrafast fiber sources in spectral regions without efficient modulators or saturable absorbers.
Synchronously pumped mode-locking, which avoids the usage of saturable absorbers or intracavity modulators, is a promising technique to generate ultrashort pulses for industrial applications. However, because of the lack of all-fiber single-mode ultrafast pump sources, it is difficult to apply this technique in ytterbium-doped fiber lasers (YDFLs). To the best of our knowledge, this study has demonstrated a synchronously pumped mode-locked ul-trafast YDFL for the first time. Based on a home-built 976-nm pulsed fiber laser as the pump, it generates dissipative solitons with a pulse duration of 31.3 ps and a repetition frequency of similar to 27.95 MHz. The laser is developed with an all-polarization-maintaining architecture; therefore, it exhibits excellent environmental sta-bility and self-starting capacity. Furthermore, we have also conducted experimental work for investigating the mechanism of this mode-locking technique. The results indicate that instead of the gain modulation effect, the pulsed pump-induced cross-phase modulation effect plays a dominant role in pulse shaping. This study dem-onstrates a potential strategy for realizing high-performance ultrafast fiber sources in the spectral regions without efficient modulators or saturable absorbers.
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