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Related Experiment Video

Updated: Dec 13, 2025

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

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Published on: December 15, 2021

Stretched-Pulse Soliton Kerr Resonators.

Xue Dong¹, Qian Yang¹, Christopher Spiess¹

¹Institute of optics, University of Rochester, Rochester, New York 14627, USA.

Physical Review Letters

|August 4, 2020

Summary

Researchers developed stretched-pulse solitons in fiber Kerr resonators, achieving the shortest pulses yet. This breakthrough offers a promising new method for generating ultrashort femtosecond pulses.

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Area of Science:

Nonlinear optics
Fiber optics

Background:

Kerr resonators generate optical solitons for femtosecond pulse and frequency-comb generation.
Current Kerr resonator solitons have limitations in pulse duration compared to traditional lasers.

Purpose of the Study:

To introduce and characterize stretched-pulse solitons in dispersion-managed Kerr resonators.
To achieve shorter pulse durations than previously possible from fiber Kerr resonators.

Main Methods:

Theoretical modeling and numerical simulations of stretched-pulse soliton dynamics.
Experimental generation and characterization of solitons in a dispersion-managed fiber Kerr resonator.

Main Results:

Demonstrated the shortest pulse durations to date from a fiber Kerr resonator using stretched-pulse solitons.
Observed Gaussian temporal profiles that stretch and compress during each resonator round trip.
Experimental results showed excellent agreement with numerical simulations.

Conclusions:

Stretched-pulse solitons represent a novel and stable nonlinear waveform in Kerr resonators.
This technique offers a promising advancement for femtosecond pulse generation.
Detailed theoretical and experimental analysis provides design guidelines for performance optimization.