Broadband wavelength conversion at 40Gb/s using long serpentine As2S3 planar waveguides
We demonstrate broadband wavelength conversion of a 40 Gb/s return-to-zero signal by cross-phase modulation in a newly developed chalcogenide glass waveguide based photonic chip. These new serpentine As2S3 waveguides offer a nonlinear coefficient ≈1700 W-1km-1 with 5× lower propagation loss over a length of 22.5 cm which ensures the full propagation length contributes towards the nonlinear process. This reduces the peak operating power thereby allowing a ×4 increase in the data...[Show more]
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