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Published March 18, 2021 | Version Submitted
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Self-regulating soliton domain walls in microresonators

Creators

Abstract

Dissipative soliton Kerr frequency combs in microresonators have recently been demonstrated with self-injection locking. They have the advantage of turnkey deterministic comb generation, and also simplify dark soliton generation in the normal dispersion regime. Here, the formation process of dark solitons triggered by self-injection locking is studied by regarding them as a pair of domain walls that connect domains having different intracavity powers. The self-injection locking mechanism allows the domain walls to self-regulate position so that a wide range of dark soliton states can be accessed. Moreover, soliton duty cycle is readily controlled by the feedback phase. Direct imaging of the dark soliton pulse shape using the electro-optic sampling technique is used to verify the theory. The results provide new physical insights as well as a new operational modality for this important class of nonlinear waves.

Additional Information

The authors thank Q. Yang for discussions. Funding is provided by the Defense Advanced Research Projects Agency (DARPA) under A-PhI program (FA9453-19-C- 0029) and the Air Force Office of Scientific Research (AFOSR) (FA9550-18-1-0353).

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Additional details

Identifiers

Eprint ID
108527
Resolver ID
CaltechAUTHORS:20210323-124017344

Related works

Describes
http://arxiv.org/abs/2103.10422 (URL)

Funding

Defense Advanced Research Projects Agency (DARPA)
FA9453-19-C-0029
Air Force Office of Scientific Research (AFOSR)
FA9550-18-1-0353

Dates

Created
2021-03-23
Created from EPrint's datestamp field
Updated
2023-06-02
Created from EPrint's last_modified field