1. Self-phase-modulation induced spectral broadening in silicon waveguides
- Author
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Tejaswi K. Indukuri, Bahram Jalali, and Ozdal Boyraz
- Subjects
Materials science ,Silicon ,business.industry ,Photonic integrated circuit ,chemistry.chemical_element ,Atomic and Molecular Physics, and Optics ,symbols.namesake ,Wavelength ,Optics ,chemistry ,symbols ,Stimulated emission ,Self-phase modulation ,business ,Phase modulation ,Raman scattering ,Doppler broadening - Abstract
The prospect for generating supercontinuum pulses on a silicon chip is studied. Using ~4ps optical pulses with 2.2GW/cm(2) peak power, a 2 fold spectral broadening is obtained. Theoretical calculations, that include the effect of two-photon-absorption, indicate up to 5 times spectral broadening is achievable at 10x higher peak powers. Representing a nonlinear loss mechanism at high intensities, TPA limits the maximum optical bandwidth that can be generated.
- Published
- 2004
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