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06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Spatial frequency combs and supercontinuum generation in one-dimensional photonic lattices
Rong Dong1, Christian E Rüter, Detlef Kip
1Institute of Physics and Physical Technologies, Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany.
Physical Review Letters
|November 13, 2008
Summary
Researchers created spatial supercontinuum and frequency combs in nonlinear photonic lattices. The outcome depends on the initial wave
Area of Science:
- Nonlinear optics
- Photonic crystals
- Wave dynamics
Background:
- Nonlinear photonic lattices support complex wave phenomena.
- Four-wave mixing is a key nonlinear process in optics.
Purpose of the Study:
- To experimentally demonstrate spatial supercontinuum and frequency comb formation.
- To investigate the role of Floquet-Bloch modes in nonlinear lattices.
- To explore the influence of transverse momentum difference on wave evolution.
Main Methods:
- Launching two Floquet-Bloch modes into a 1D nonlinear photonic lattice.
- Utilizing multiple four-wave mixing processes.
- Analyzing wave dynamics based on transverse momentum difference.
Main Results:
- Spatial supercontinuum formation observed for incommensurable momentum differences.
- Spatial frequency comb generation observed for commensurable momentum differences.
- Wave dynamics are highly sensitive to the initial transverse momentum difference.
Conclusions:
- The transverse momentum difference dictates the formation of either a spatial supercontinuum or a spatial frequency comb.
- This work highlights the control over nonlinear optical phenomena in photonic lattices.
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