All-optical efficient wavelength conversion using silicon photonic wire waveguide. Signal regeneration using low-power four-wave mixing on silicon chip. Self-phase modulation-based integrated optical regeneration in chalcogenide waveguides. Nonlinear Fiber Optics 3rd edn (Academic Press, 2001). LEOS Summer Topical Meetings, 9–10 (2007).Īgrawal, G. Electronic dispersion compensation beyond 10 Gb s −1. The demonstrated ultrafast, broadband capability highlights the potential for integrated chip-based signal processing at bit rates approaching and beyond Tb s −1. Using the device, we characterize high-bit-rate (320 Gb s −1) optical signals impaired by various distortions. The key to this is the waveguide's high optical nonlinearity and dispersion-shifted design. Here, we apply it to demonstrate, for the first time, a photonic-chip-based, all-optical, radio-frequency spectrum analyser with the performance advantages of distortion-free, broad measurement bandwidth (>2.5 THz) and flexible wavelength operation (that is, colourless). Towards this objective, we have developed compact planar rib waveguides based on As 2S 3 glass, providing a virtual ‘lumped’ high nonlinearity in a monolithic platform capable of integrating multiple functions. This can be achieved through all-optical schemes making use of the ultrafast response of χ (3) nonlinear waveguides 2. Signal processing at terahertz speeds calls for an enormous leap in bandwidth beyond the current capabilities of electronics, for which practical operation is currently limited to tens of gigahertz 1.
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