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Multi-peak-spectra generation with Cherenkov radiation in a non-uniform single mode fiber
Optics Express
|March 26, 2014
Summary
We present a simple method using numerical simulations to design non-uniform optical fibers. This fiber design enables controlled generation of specific spectral peaks from dispersive waves for low-power optical applications.
Area of Science:
- Nonlinear Optics
- Optical Fiber Design
- Computational Photonics
Background:
- Generating tailored optical spectra is crucial for various photonic applications.
- Standard single-mode fibers have limitations in controlling spectral broadening.
- Dispersive wave generation and Cherenkov radiation are key phenomena in nonlinear fiber optics.
Purpose of the Study:
- To propose a simple numerical method for designing non-uniform standard single-mode fibers.
- To achieve controlled generation of specific spectral peaks (dispersive waves).
- To enable 'ad-hoc' spectral shaping for low-power applications.
Main Methods:
- Utilizing numerical simulations to model fiber behavior.
- Designing non-uniform fiber profiles by segmenting cladding diameter.
- Tailoring fiber dispersion to control Cherenkov radiation emission.
Main Results:
- Demonstrated a method for controlled multi-peak spectral generation.
- Achieved 'on/off' switching of Cherenkov radiation through dispersion engineering.
- Observed discrete peaks of Cherenkov radiation from low-order solitons.
Conclusions:
- The proposed fiber design method effectively generates desired spectral peaks.
- The interplay between fiber dispersion and soliton self-frequency shift is key.
- Generated spectra are suitable for applications requiring low-power, bell-shaped pulses at specific wavelengths.
