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2. High parametric efficiency in laser cavity-soliton microcombs

Author

Cutrona, Antonio, primary, Rowley, Maxwell, additional, Das, Debayan, additional, Olivieri, Luana, additional, Peters, Luke, additional, Chu, Sai T., additional, Little, Brent E., additional, Morandotti, Roberto, additional, Moss, David J., additional, Totero Gongora, Juan Sebastian, additional, Peccianti, Marco, additional, and Pasquazi, Alessia, additional

Published
2022
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5. Interaction of self-trapped beams in high index glass

Author

Alessia Pasquazi, Carmen N. Afonso, Javier Solis, Schirin Heidari-Bateni, José Gonzalo, Elena D'Asaro, and Gaetano Assanto

Subjects
Physics, Nonlinear absorption, business.industry, High index, Atomic and Molecular Physics, and Optics, Schrödinger equation, Nonlinear system, symbols.namesake, Optics, Dissipative system, symbols, Relative phase, Absorption (electromagnetic radiation), business, Nonlinear Sciences::Pattern Formation and Solitons, Energy exchange
Abstract

We observe attraction, repulsion and energy exchange between two self-trapped beams in a heavy-metal-oxide glass exhibiting a Kerr-like response with multiphoton absorption. The coherent interaction between spatial solitons is controlled by their relative phase and modeled by a nonlinear dissipative Schrödinger equation. ©2009 Optical Society of America., This work was supported by the Italian Ministry for University and Research through an “Italy-Spain Integrated Action” (Grant no. IT1890/HI2006-0095, 2007) and by the Spanish Ministry of Science and Innovation (Grant TEC2008-01183).

Published
2009

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. 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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9. 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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10. 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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12. 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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14. 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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18. Parametric interaction of laser cavity-solitons with an external CW pump.

Author

Cooper A, Olivieri L, Cutrona A, Das D, Peters L, Chu ST, Little B, Morandotti R, Moss DJ, Peccianti M, and Pasquazi A

Abstract

We study the interaction of a laser cavity-soliton microcomb with an externally coupled, co-propagating tunable CW pump, observing parametric Kerr interactions which lead to the formation of both a cross-phase modulation and a four-wave mixing replica of the laser cavity-soliton. We compare and explain the dependence of the microcomb spectra from both the cavity-soliton and pump parameters, demonstrating the ability to adjust the microcomb externally without breaking or interfering with the soliton state. The parametric nature of the process agrees with numerical simulations. The parametric extended state maintains the typical robustness of laser-cavity solitons.

Published
2024
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