Journal
OPTICS EXPRESS
Volume 27, Issue 10, Pages 14173-14183Publisher
Optica Publishing Group
DOI: 10.1364/OE.27.014173
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Funding
- Hong Kong Research Grants Council [PolyU152144/15E]
- National Natural Science Foundation of China [61475131]
- Shenzhen Science and Technology Innovation Commission [JCYJ20160331141313917]
- Hong Kong Polytechnic University [1-ZVGB]
- Defense Advanced Research Projects Agency (DARPA) [W31P4Q-14-1-0002]
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Multi-channel modelocked lasers and their design have attracted much attention. Here, we use the Swilt-Hotienberg equation to study dual-channel simultaneous modelocking (DSML) in a fiber laser. When a quartic filter is added to the laser cavity, the stable dual-channel simultaneous modelocking can be obtained for a given filter bandwidth when frequency separation, omega(s), is less than a calculated threshold, omega(th). When omega(s) > omega(th), a multipulsing instability occurs. We use a linear stability analysis to determine the limit that the multi-pulsing instability imposes on DSML, and we propose a cavity design that avoids the multi-pulsing instability. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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