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Generation and stability of discrete gap solitons
Andrey A Sukhorukov1, Yuri S Kivshar
1Nonlinear Physics Group, Centre for Ultra-High Bandwidth Devices for Optical Systems, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia. ans124@rsphysse.anu.edu.au
Optics Letters
|December 19, 2003
Summary
We studied discrete gap solitons in optical waveguides, finding that both stable and unstable solitons can be experimentally observed. This research links soliton instabilities to focusing limitations in photonic structures.
Area of Science:
- Nonlinear Optics
- Photonic Crystals
- Waveguide Arrays
Background:
- Discrete gap solitons are crucial for optical signal processing.
- Understanding their stability is key to practical applications.
- Previous studies have explored soliton dynamics in various photonic systems.
Purpose of the Study:
- To analyze the stability and generation of discrete gap solitons.
- To experimentally observe both stable and unstable solitons.
- To investigate the relationship between soliton instabilities and beam focusing.
Main Methods:
- Theoretical analysis of discrete gap solitons.
- Experimental implementation in engineered binary waveguide arrays.
- Investigation of soliton dynamics and instabilities.
Main Results:
- Demonstrated the experimental observation of both stable and unstable discrete gap solitons.
- Revealed a direct connection between gap-soliton instabilities and limitations in mutual beam focusing.
- Characterized soliton behavior in engineered nonlinear photonic structures.
Conclusions:
- Discrete gap solitons exhibit both stable and unstable behaviors in engineered waveguide arrays.
- Soliton instabilities impose fundamental limits on beam focusing in periodic photonic systems.
- This work provides insights into controlling light propagation in nonlinear optical devices.