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4. Solid-state-biased coherent detection of ultra-broadband terahertz pulses

Author

Tomasino, Alessandro, primary, Mazhorova, Anna, additional, Clerici, Matteo, additional, Peccianti, Marco, additional, Ho, Sze-Phing, additional, Jestin, Yoann, additional, Pasquazi, Alessia, additional, Markov, Andrey, additional, Jin, Xin, additional, Piccoli, Riccardo, additional, Delprat, Sebastien, additional, Chaker, Mohamed, additional, Busacca, Alessandro, additional, Ali, Jalil, additional, Razzari, Luca, additional, and Morandotti, Roberto, additional

Published
2017
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7. Integrated frequency comb source of heralded single photons

Author

Reimer, Christian, primary, Caspani, Lucia, additional, Clerici, Matteo, additional, Ferrera, Marcello, additional, Kues, Michael, additional, Peccianti, Marco, additional, Pasquazi, Alessia, additional, Razzari, Luca, additional, Little, Brent E., additional, Chu, Sai T., additional, Moss, David J., additional, and Morandotti, Roberto, additional

Published
2014
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8. Enhancement of third-harmonic generation in nonlocal spatial solitons

Author

Gaetano Assanto, Roberto Morandotti, Marco Peccianti, Alessia Pasquazi, Peccianti, M, Pasquazi, A, Assanto, Gaetano, and Morandotti, R.

Subjects
Optical amplifier, Physics, business.industry, Physics::Optics, Second-harmonic generation, Nonlinear optics, Soliton (optics), Laser, Atomic and Molecular Physics, and Optics, law.invention, Optics, Regenerative amplification, Liquid crystal, law, Nonlinear optics : Harmonic generation and mixing, Femtosecond, business
Abstract

We report on the observation of Type I third-harmonic generation induced by a train of femtosecond laser pulses in nematic liquid crystals. We find that as the average power of the train is increased, the frequency conversion process is enhanced as a consequence of the tight confinement of the pulses into a nonlocal spatial soliton. (C) 2010 Optical Society of America

Published
2010
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9. CMOS compatible integrated all-optical radio frequency spectrum analyzer

Author

David J. Moss, Brent E. Little, Lucia Caspani, Marco Peccianti, Christian Reimer, Marcello Ferrera, Alessia Pasquazi, Sai T. Chu, Roberto Morandotti, and Matteo Clerici

Subjects
Spectrum analyzer, TA1501, Materials science, Terahertz radiation, business.industry, Doping, Bandwidth (signal processing), Physics::Optics, Nonlinear optics, Spectral density, 02 engineering and technology, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, Atomic and Molecular Physics, and Optics, Radio spectrum, QC0350, law.invention, 010309 optics, Optics, law, 0103 physical sciences, 0210 nano-technology, business, QC
Abstract

We report an integrated all-optical radio frequency spectrum analyzer based on a ~4 cm long doped silica glass waveguide, with a bandwidth greater than 2.5 THz. We use this device to characterize the intensity power spectrum of ultrahigh repetition rate mode-locked lasers at repetition rates up to 400 GHz, and observe dynamic noise related behavior not observable with other techniques.

Published
2014
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10. Integrated frequency comb source of heralded single photons

Author

Marco Peccianti, Roberto Morandotti, Luca Razzari, David J. Moss, Sai T. Chu, Michael Kues, Brent E. Little, Christian Reimer, Matteo Clerici, Alessia Pasquazi, Marcello Ferrera, and Lucia Caspani

Subjects
Physics, TA1501, Photon, business.industry, Physics::Optics, 7. Clean energy, Multiplexing, Atomic and Molecular Physics, and Optics, QC0350, QC350, Wavelength, Frequency comb, Laser linewidth, Resonator, Wavelength-division multiplexing, Optoelectronics, business, Quantum, QC
Abstract

We report an integrated photon pair source based on a CMOS-compatible microring resonator that generates multiple, simultaneous, and independent photon pairs at different wavelengths in a frequency comb compatible with fiber communication wavelength division multiplexing channels (200 GHz channel separation) and with a linewidth that is compatible with quantum memories (110 MHz). It operates in a self-locked pump configuration, avoiding the need for active stabilization, making it extremely robust even at very low power levels.

Published
2014
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11. Self-locked optical parametric oscillation in a CMOS compatible microring resonator: a route to robust optical frequency comb generation on a chip

Author

Pasquazi, Alessia, primary, Caspani, Lucia, additional, Peccianti, Marco, additional, Clerici, Matteo, additional, Ferrera, Marcello, additional, Razzari, Luca, additional, Duchesne, David, additional, Little, Brent E., additional, Chu, Sai T., additional, Moss, David J., additional, and Morandotti, Roberto, additional

Published
2013
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13. Self-locked optical parametric oscillation in a CMOS compatible microring resonator: a route to robust optical frequency comb generation on a chip

Author

Marcello Ferrera, Brent E. Little, David Duchesne, Alessia Pasquazi, Luca Razzari, Lucia Caspani, Matteo Clerici, Roberto Morandotti, Sai T. Chu, Marco Peccianti, and David J. Moss

Subjects
OPOS, Physics, TA1501, Oscillation, business.industry, nonlinear microcavity resonators, Bandwidth (signal processing), Physics::Optics, 02 engineering and technology, Laser pumping, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, QC0350, 010309 optics, Resonator, Nonlinear system, Optical frequencies, 0103 physical sciences, Thermal, Optoelectronics, 0210 nano-technology, business
Abstract

We report a novel geometry for OPOs based on nonlinear microcavity resonators. This approach relies on a self-locked scheme that enables OPO emission without the need for thermal locking of the pump laser to the microcavity resonance. By exploiting a CMOS-compatible microring resonator, we achieve oscillation featured by a complete absence of “shutting down”, i.e. the self-terminating behavior that is a very common and detrimental occurrence in externally pumped OPOs. Further, our scheme consistently produces very wide bandwidth (>300nm, limited by our experimental set-up) combs that oscillate at a spacing equal to the FSR of the micro cavity resonance.

Published
2013
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16. Optical frequency conversion in integrated devices [Invited]

Author

Caspani, Lucia, primary, Duchesne, David, additional, Dolgaleva, Ksenia, additional, Wagner, Sean J., additional, Ferrera, Marcello, additional, Razzari, Luca, additional, Pasquazi, Alessia, additional, Peccianti, Marco, additional, Moss, David J., additional, Aitchison, J. Stewart, additional, and Morandotti, Roberto, additional

Published
2011
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17. Towards Ultrafast Integrated Optical Clocks

Author

Sai T. Chu, Alessia Pasquazi, Roberto Morandotti, David J. Moss, Brent E. Little, and Marco Peccianti

Subjects
Physics, business.industry, Physics::Optics, Optical integration, Condensed Matter Physics, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Photonic metamaterial, law.invention, fiber laser, Four-wave mixing, Optics, Filter (video), law, Fiber laser, Nonlinear element, Electrical and Electronic Engineering, business, Ultrashort pulse
Abstract

Future photonic materials and optical integration strategies will likely be compatible with current CMOS fabrication technologies and platforms. We demonstrated that it is possible to obtain modelocked soliton pulse emission in a fiber loop laser by combining the nonlinear element with the high-finesse filter, exploiting a novel interaction mechanism that we termed filter-driven four wave mixing (FD-FWM).

Published
2012
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18. Stable, dual mode, high repetition rate mode-locked laser based on a microring resonator

Author

Roberto Morandotti, Sai T. Chu, Marco Peccianti, Alessia Pasquazi, Brent E. Little, and David J. Moss

Subjects
Materials science, Optical Phenomena, Physics::Optics, Lasers, Solid-State, Absorption, law.invention, Resonator, Laser linewidth, Tone (musical instrument), MICRORESONATOR, law, Pulse wave, Physics::Atomic Physics, NONLINEAR OPTICS, business.industry, Equipment Design, Laser, Atomic and Molecular Physics, and Optics, OPTICAL FREQUENCY COMBS, Semiconductors, Modulation, MODULATIONAL-INSTABILITY LASER, FIBER RING LASER, Optoelectronics, Monochromatic color, business, Ultrashort pulse
Abstract

We demonstrate a novel mode locked ultrafast laser, based on an integrated high-Q microring resonator. Our scheme exhibits stable operation of two slightly shifted spectral optical comb replicas. It generates a highly monochromatic radiofrequency modulation of 65.8MHz with a linewidth < 10kHz, on a 200GHz output pulse train.

Published
2012
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21. Optical frequency conversion in integrated devices [Invited]

Author

Marco Peccianti, Lucia Caspani, S.J. Wagner, D. Duchesne, Roberto Morandotti, Ksenia Dolgaleva, Marcello Ferrera, Alessia Pasquazi, J. Stewart Aitchison, David J. Moss, and Luca Razzari

Subjects
Materials science, Physics::Optics, RING-RESONATOR, 02 engineering and technology, 01 natural sciences, 010309 optics, Resonator, Four-wave mixing, Optics, Wavelength-division multiplexing, 0103 physical sciences, Broadband, SELF-PHASE-MODULATION, 2ND-HARMONIC GENERATION, business.industry, Bandwidth (signal processing), Nonlinear optics, Statistical and Nonlinear Physics, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, WAVELENGTH CONVERSION, Metrology, Wavelength, Optoelectronics, 0210 nano-technology, business, SUPERLATTICE WAVE-GUIDES
Abstract

We review our recent progress on frequency conversion in integrated devices, focusing primarily on experiments based on strip-loaded and quantum-well intermixed AlGaAs waveguides, and on CMOS-compatible high-index doped silica-glass waveguides. The former includes both second- and third-order interactions, demonstrating wavelength conversion by tunable difference-frequency generation over 100 nm bandwidth, as well as broadband self-phase modulation and tunable four-wave mixing. The latter includes four-wave mixing using low-power continuous-wave light in microring resonators as well as hyperparametric oscillation in a high quality factor resonator, toward the realization of an integrated multiple wavelength source with important applications for telecommunications, spectroscopy, and metrology.

Published
2011
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26. Spatial Solitons in 2D Lattices

Author

Salvatore Stivala, Alessia Pasquazi, Katia Gallo, and Gaetano Assanto

Subjects
Physics, Hexagonal symmetry, Condensed matter physics, Lithium niobate, Physics::Optics, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Displacement (vector), Electronic, Optical and Magnetic Materials, Transverse plane, chemistry.chemical_compound, chemistry, Electrical and Electronic Engineering, Photonic lattices, Parametric statistics
Abstract

These authors describe their observation of two-color optical solitons in a 2D parametric photonic lattice with hexagonal symmetry in lithium niobate. Their results have enabled wavelength-controlled angular steering and transverse displacement of self-trapped filaments of light.

Published
2008
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