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In this contribution, we will review our recent activities in the development of double nested cavity lasers. Several stable operating regimes can be achieved over a wide range of conditions.
We propose and experimentally demonstrate a reconfigurable photonic RF differentiator based on a Kerr frequency comb generated in an integrated nonlinear microring resonator. The RF magnitude and phase responses are experimentally characterized. Systems demonstrations for Gaussian input signals are also performed.
Microresonator based frequency combs or microcombs have attracted considerable interest in recent years as they would benefit a widespread of applications including high speed communication system, metrology, ultrafast optical clocks and on chip optical signal processing. A great amount of work on microcombs has been done in the past few years; coherent sources based on optical parametric generation...
Wavelength conversion of 32-Gbaud QPSK and 10-Gbaud 16-QAM is demonstrated using a 50-cm long low loss spiral Hydex-glass waveguide. BER < HD-FEC threshold is achieved over 10 nm bandwidth with OSNR penalty < 0.5 dB.
We demonstrated a new regime of operation for ultrafast mode-locked lasers that we termed “burst-mode” modelocking. By exploiting an integrated 11th order micro-ring resonator, our scheme achieves stable operation resulting in a mode-locked train of pulses at 650 GHz with a burst mode envelope of 40 ps at 7.12 MHz.
We demonstrate novel microcavity lasers in an integrated, CMOS compatible platform. This platform has promise for telecommunications and on-chip WDM optical interconnects.
A supercontinuum spectrum of more than 300nm is obtained at 1550nm and 1290nm using doped-silica glass, 45cm long, integrated spiral waveguides. Different dynamics near two distinct zero dispersion wavelengths are observed and explained theoretically.
The optical links for the ATLAS Pixel detector has been passed several steps of development. After the design and production of the components itself, various tests have been performed on individual components on smaller or larger parts of the full system. Finally, the links were commissioned in situ after installation. A lot of experience has been gained and this should be used to step into the research...
We demonstrate error-free wavelength conversion near a = 1550nm at 10Gb/s based on cross-phase modulation in single mode As2Se3 chalcogenide glass fibre. We achieve 1.4dB excess system penalty with 2.1W average peak pump power in 1m of fibre over a 10nm range.
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