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Control of single and multiple phase solitons in a ring cavity
Mohammad Mehdi Shafie1, Reza Kheradmand1, Mohammad Ghahramani2
1Photonics Group, Faculty of Physics, University of Tabriz, 5166616471 Tabriz, Iran.
Chaos (Woodbury, N.Y.)
|October 2, 2021
Summary
Researchers numerically demonstrate creating phase solitons in forced ring lasers. Superimposing a control beam generates soliton crystals, offering a novel method for producing frequency combs with tunable spacing and high power.
Area of Science:
- Nonlinear Optics
- Laser Physics
- Soliton Dynamics
Background:
- Phase solitons are localized structures with phase jumps of 2π multiples.
- They arise in the context of forced ring lasers.
Purpose of the Study:
- To numerically investigate the creation of phase solitons in forced ring lasers.
- To explore the generation of soliton crystals and their potential applications.
Main Methods:
- Numerical simulations were employed to study phase soliton formation.
- A constant driving field was superimposed with a control beam matched to a different cavity mode.
Main Results:
- Phase solitons were successfully created by superimposing a control beam.
- A train of equispaced phase solitons, termed a soliton crystal, was generated when beams differed by n free spectral ranges.
- This method offers flexible frequency spacing and high power per line.
Conclusions:
- The study presents a simple numerical method for generating phase solitons and soliton crystals.
- This technique provides a promising route for producing advanced frequency combs.
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