Инд. авторы:	Sergeyev S.V., Kbashi H., Tarasov N., Loiko Y., Kolpakov S.A.
Заглавие:	Vector-Resonance-Multimode Instability
Библ. ссылка:	Sergeyev S.V., Kbashi H., Tarasov N., Loiko Y., Kolpakov S.A. Vector-Resonance-Multimode Instability // Physical Review Letters. - 2017. - Vol.118. - Iss. 3. - Art.033904. - ISSN 0031-9007. - EISSN 1079-7114.
Внешние системы:	DOI: 10.1103/PhysRevLett.118.033904; SCOPUS: 2-s2.0-85010936366;
Реферат:	eng: The modulation and multimode instabilities are the main mechanisms which drive spontaneous spatial and temporal pattern formation in a vast number of nonlinear systems ranging from biology to laser physics. Using an Er-doped fiber laser as a test bed, here for the first time we demonstrate both experimentally and theoretically a new type of a low-threshold vector-resonance-multimode instability which inherits features of multimode and modulation instabilities. The same as for the multimode instability, a large number of longitudinal modes can be excited without mode synchronization. To enable modulation instability, we modulate the state of polarization of the lasing signal with the period of the beat length by an adjustment of the in-cavity birefringence and the state of polarization of the pump wave. As a result, we show the regime's tunability from complex oscillatory to periodic with longitudinal mode synchronization in the case of resonance matching between the beat and cavity lengths. Apart from the interest in laser physics for unlocking the tunability and stability of dynamic regimes, the proposed mechanism of the vector-resonance-multimode instability can be of fundamental interest for the nonlinear dynamics of various distributed systems. © 2017 American Physical Society.
Ключевые слова:	Polarization; Resonance; Stability; Distributed systems; Dynamic regimes; Er-doped fiber laser; Longitudinal modes; Modulation instabilities; Spatial and temporal patterns; Modulation; State of polarization; Fiber lasers; Low thresholds;
Издано:	2017
Физ. характеристика:	033904