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Pasquazi A.,INRS EMT | Peccianti M.,CNR Institute for Complex Systems | Little B.E.,Infinera Ltd | Chu S.T.,City University of Hong Kong | And 2 more authors.
European Conference on Optical Communication, ECOC | Year: 2012

We summarize our recent results on the generation and of ultrafast optical signals in CMOS-compatible monolithic devices by exploiting the third order nonlinearity of glass based waveguides. We show that we can generate stable train of pulses at 200GHz rep rate with a novel passive mode-locking scheme based on an integrated ring resonator. © 2012 Optical Society of America. Source


Husko C.,Institute of Photonics and Optical Science IPOS | Eggleton B.J.,Institute of Photonics and Optical Science IPOS
Optics Letters | Year: 2012

We compare the energy performance of four-wave mixing in nanowires and slow-light photonic crystals and outline the regimes where each platform exhibits salient advantages and limitations, including analysis of the impact of future fabrication improvement. These results suggest a route towards energy efficient silicon integrated photonics. © 2012 Optical Society of America. Source


Li F.,Institute of Photonics and Optical Science IPOS | Jackson S.D.,Institute of Photonics and Optical Science IPOS | Grillet C.,Institute of Photonics and Optical Science IPOS | Magi E.,Institute of Photonics and Optical Science IPOS | And 9 more authors.
Optics Express | Year: 2011

We report record low loss silicon-on-sapphire nanowires for applications to mid infrared optics. We achieve propagation losses as low as 0.8dB/cm at λ = 1550nm, ∼1.1 to 1.4dB/cm at λ = 2080nm and < 2dB/cm at λ = 5.18 μm. © 2011 Optical Society of America. Source


Carpenter J.,Institute of Photonics and Optical Science IPOS | Xiong C.,Institute of Photonics and Optical Science IPOS | Collins M.J.,Institute of Photonics and Optical Science IPOS | Li J.,University of St. Andrews | And 6 more authors.
Optics Express | Year: 2013

We classically measure the entire propagation matrix of a fewmode fiber and use a spatial light modulator to undo modal mixing and recover single-photons launched onto each of the eigenmodes of the fiber at one end, but arriving as mixed modal superpositions at the other. We exploit the orthogonality of these modal channels to improve the isolation between a quantum and classical channel launched onto different spatial and polarization modes at different wavelengths. The spatial diversity of the channels provides an additional 35dB of isolation in addition to that provided by polarization and wavelength. ©2013 Optical Society of America. Source


Paquot Y.,Institute of Photonics and Optical Science IPOS | Schroder J.,Institute of Photonics and Optical Science IPOS | Van Erps J.,Institute of Photonics and Optical Science IPOS | Van Erps J.,Vrije Universiteit Brussel | And 5 more authors.
Optics Express | Year: 2011

We report the demonstration of automatic higher-order dispersion compensation for the transmission of 275 fs pulses associated with a Tbaud Optical Time Division Multiplexed (OTDM) signal. Our approach achieves simultaneous automatic compensation for 2nd, 3rd and 4th order dispersion using an LCOS spectral pulse shaper (SPS) as a tunable dispersion compensator and a dispersion monitor made of a photonic-chip-based all-optical RF-spectrum analyzer. The monitoring approach uses a single parameter measurement extracted from the RF-spectrum to drive a multidimensional optimization algorithm. Because these pulses are highly sensitive to fluctuations in the GVD and higher orders of chromatic dispersion, this work represents a key result towards practical transmission of ultrashort optical pulses. The dispersion can be adapted on-the-fly for a 1.28 Tbaud signal at any place in the transmission line using a black box approach. © 2011 Optical Society of America. Source

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