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08:48
Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
Spectral features associated with nonlinear pulse compression in Bragg gratings.
Optics Letters
|December 8, 2007
Summary
We demonstrate direct spectral measurements of nonlinear spectral broadening in aluminum gallium arsenide (AlGaAs) waveguides. This nonlinear effect enables pulse compression for advanced photonic applications.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Nonlinear optical effects are crucial for advanced photonic devices.
- Integrated photonics offers miniaturization and enhanced performance.
- Aluminum Gallium Arsenide (AlGaAs) exhibits strong nonlinear optical properties.
Purpose of the Study:
- To directly measure nonlinear spectral broadening in AlGaAs waveguides.
- To investigate nonlinear propagation effects in integrated Bragg gratings.
- To demonstrate the utility of AlGaAs for low-peak-power nonlinear optics.
Main Methods:
- Fabrication of Bragg gratings on integrated AlGaAs waveguides.
- Direct spectral measurements of light propagating through the gratings.
- Utilizing high-repetition-rate, low-peak-power sources for spectral analysis.
Main Results:
- Observed significant nonlinear spectral broadening.
- Demonstrated pulse compression from 400 picoseconds (ps) to 80 ps.
- Confirmed the high nonlinearity of AlGaAs enabling efficient spectral manipulation.
Conclusions:
- Direct spectral measurements of nonlinear spectral broadening are achieved in AlGaAs waveguides.
- AlGaAs is a promising material for integrated nonlinear photonic devices.
- The observed pulse compression has implications for high-speed optical signal processing.
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