Pulse dynamics in carbon nanotube mode-locked fiber lasers near zero cavity dispersion
Optical Society of America
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Wang, J., Cai, Z., Xu, P., Du, G., Wang, F., Ruan, S., Sun, Z., & et al. (2015). Pulse dynamics in carbon nanotube mode-locked fiber lasers near zero cavity dispersion. Optics Express, 23 9947-9958. https://doi.org/10.1364/OE.23.009947
We numerically and experimentally analyse the output characteristics and pulse dynamics of carbon nanotube mode-locked fiber lasers near zero cavity dispersion (from 0.02 to ~ –0.02 ps2). We focus on such near zero dispersion cavities to reveal the dispersion related transition between different mode-locking regimes (such as soliton-like, stretchedpulse and self-similar regimes). Using our proposed model, we develop a nanotube-mode-locked fiber laser setup generating ~97 fs pulse which operates in the stretched-pulse regime. The corresponding experimental results and pulse dynamics are in good agreement with the numerical results. Also, the experimental results from soliton-like and self-similar regimes exhibit the same trends with simulations. Our study will aid design of different mode-locking regimes based on other new saturable absorber materials to achieve ultra-short pulse duration.
We acknowledge funding from the National Natural Science Foundation of China (Grant No. 61275050, 61275144), Teknologiateollisuus TT-100, the European Union’s Seventh Framework Programme (REA grant agreement No. 631610), and Aalto University (Finland). TH acknowledges funding from the Royal Academy of Engineering through a research fellowship (Graphlex).
External DOI: https://doi.org/10.1364/OE.23.009947
This record's URL: https://www.repository.cam.ac.uk/handle/1810/254454