Spectrally-resolved statistical characterization of seeded supercontinuum suppression using optical time-stretch

摘要: Real-time experimental measurements of the spectrally-resolved noise properties supercontinuum (SC) have been challenging because lack ultrafast optical spectrometer technologies. Understanding SC is increasingly important it not only can gain new insight complex spectral dynamics generation, but also provides clues to search for stable source. Driven by intense interest in active seeding mechanism we experimentally demonstrate real-time spectrally-resolved, broadband, statistical characterization minute continuous-wave (CW) seeded SC, enabled an ultrahigh-speed acquisition technique called time-stretch (OTS). The shot-to-shot analysis shows that exhibits a general compromise between bandwidth and stability. OTS allows us identify condition suppression, which broadening mainly contributed cascaded parametric process delays Akhmediev Breather breakup subsequent soliton self-frequency shift. Additionally, characteristic signature Raman solitons, are becalmed CW seed, be clearly captured operated at rate as high 20 MHz. We anticipate could provide further insights understanding more mechanisms seeded-SC generation examined experimentally.