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2篇 您的检索式:作者名="Srikanth Sugavanam"
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1Build-up dynamics in bidirectional soliton fiber lasers显示文摘Bidirectional ultrafast fiber lasers present an attractive solution,enabling the generation of two mutually coherent ultrashort pulse trains in a simple and turnkey system.Still,the lack of a comprehensive numerical model describing steady-state bidirectional generation,and even less ultrafast soliton breakdowns and collisions,is obstructing the achievement of the performance compared with unidirectional lasers.In this paper,we have experimentally investigated real-time build-up dynamics of counter-propagating solitons in an ultrafast ring Er-doped fiber laser via the dispersive Fourier transform methodology.We parade that counter-propagating pulses experience independent build-up dynamics from modulation instability,undergoing breathing dynamics and diverging subordinate pulse structure formation and annihilation to a stable bidirectional pulse train.Yet,the interaction of pulses in the cavity presents the key underlying phenomenon driving formation evolution distinct from unidirectional pulse build-up.Our findings will provide physical foundations for bidirectional ultrafast fiber laser design to carry forward their application.IGOR KUDELIN SRIKANTH SUGAVANAM MARIA CHERNYSHEVA 2020Photonics Research2020,8,6:3
2Narrow-band generation in random distributed feedback fi- ber laser 显示文摘Srikanth Sugavanam Nikita Tarasov Xuewen Shu 2013Optics Express2013,21,16:1
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