Dissipative soliton molecules with independently evolving or flipping phases in mode-locked fiber lasers

Journal Article · Thu Oct 15 04:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.043829· OSTI ID:21316495

Zavyalov, Aleksandr; Egorov, Oleg; Lederer, Falk ^[1]; Iliew, Rumen ^[1]

---

1. Institute of Condensed Matter Theory and Solid State Optics, Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany)

We numerically demonstrate the existence of a discrete family of robust dissipative soliton bound state solutions (soliton molecules) in a mode-locked fiber laser with an instantaneous saturable absorber in the normal dispersion domain. For a certain domain of the small-signal gain, we obtain a robust first-level bound state with almost constant separation where the phase of the two pulses evolves independently. Moreover, their phase difference can evolve either periodically or chaotically depending on the small-signal gain. Interestingly, higher level bound states exhibit a fundamentally different dynamics. They represent oscillating solutions with a phase difference alternating between zero and {pi}. We identify the crucial role of the linear gain saturation for the existence of these robust molecules independently of their level.

• OSTI ID: 21316495
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
BOUND STATE
GAIN
LASERS
MATHEMATICAL SOLUTIONS
MODE LOCKING
MOLECULES
OPTICAL FIBERS
PERIODICITY
SIGNALS
SOLITONS