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Incoherent multi-gap optical solitons in nonlinear photonic lattices
Optics Express
|June 5, 2009
Summary
Partially incoherent light can be trapped in photonic lattices, forming novel spatial optical solitons. These multi-gap solitons can be experimentally generated by interfering incoherent light beams.
Area of Science:
- Nonlinear optics
- Photonics
- Condensed matter physics
Background:
- Photonic lattices are periodic structures that exhibit unique light-manipulating properties.
- Optical solitons are self-reinforcing light pulses that maintain their shape.
- Partially incoherent light possesses a degree of randomness in its phase.
Purpose of the Study:
- To numerically demonstrate the trapping of partially incoherent light in photonic lattices.
- To investigate the formation of partially incoherent multi-component spatial optical solitons.
- To discuss experimental generation methods for these solitons.
Main Methods:
- Numerical simulations were employed to model light propagation in a nonlinear periodic medium.
- The study focused on self-defocusing nonlinearities.
- Incoherent light beams were interfered at the input to explore soliton formation.
Main Results:
- Partially incoherent light was successfully trapped within the spectral band gaps of the photonic lattice.
- Partially incoherent multi-component spatial optical solitons were numerically identified.
- The formation of these multi-gap optical solitons was confirmed.
Conclusions:
- Partially incoherent light can form stable spatial optical solitons in nonlinear photonic lattices.
- Experimental generation is feasible by interfering incoherent light beams at the lattice input.
- This research opens avenues for novel optical phenomena and applications in nonlinear photonics.
