Journal
OPTICS EXPRESS
Volume 29, Issue 5, Pages 6629-6646Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.418283
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Funding
- European Research Council [851758]
- Defence Science and Technology Laboratory [DSTLX1000142078]
- Leverhulme Trust [ECF-2020-537]
- Engineering and Physical Sciences Research Council [EP/S001018/1]
- EPSRC [EP/S001018/1] Funding Source: UKRI
- European Research Council (ERC) [851758] Funding Source: European Research Council (ERC)
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Theoretical design of self-starting operation of microcombs based on laser-cavity solitons is presented. The modulational-instability gain of the system's zero state can be engineered to allow start-up with a well-defined number of robust solitons. This approach provides an alternative to standard techniques for laser mode-locking without requiring gain saturation.
We theoretically present a design of self-starting operation of microcombs based on laser-cavity solitons in a system composed of a micro-resonator nested in and coupled to an amplifying laser cavity. We demonstrate that it is possible to engineer the modulational-instability gain of the system's zero state to allow the start-up with a well-defined number of robust solitons. The approach can be implemented by using the system parameters, such as the cavity length mismatch and the gain shape, to control the number and repetition rate of the generated solitons. Because the setting does not require saturation of the gain, the results offer an alternative to standard techniques that provide laser mode-locking. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.
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