Journal ArticleDOI
CMOS-compatible integrated optical hyper-parametric oscillator
Luca Razzari,Luca Razzari,David Duchesne,Marcello Ferrera,Roberto Morandotti,Sai T. Chu,Brent E. Little,David J. Moss,David J. Moss +8 more
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TLDR
In this article, a fully integrated, CMOS-compatible, multiple-wavelength source with high differential slope efficiency at only a few tens of milliwatts of continuous-wave power is presented.Abstract:
Integrated multiple-wavelength laser sources, critical for important applications such as high-precision broadband sensing and spectroscopy1, molecular fingerprinting2, optical clocks3 and attosecond physics4, have recently been demonstrated in silica and single-crystal microtoroid resonators using parametric gain2,5,6. However, for applications in telecommunications7 and optical interconnects8, analogous devices compatible with a fully integrated platform9 do not yet exist. Here, we report a fully integrated, CMOS-compatible, multiple-wavelength source. We achieve optical ‘hyper-parametric’ oscillation in a high-index silica-glass microring resonator10 with a differential slope efficiency above threshold of 7.4% for a single oscillating mode, a continuous-wave threshold power as low as 54 mW, and a controllable range of frequency spacing from 200 GHz to more than 6 THz. The low loss, design flexibility and CMOS compatibility of this device will enable the creation of multiple-wavelength sources for telecommunications, computing, sensing, metrology and other areas. Through optical ‘hyper-parametric’ oscillation in a high-index silica glass microring resonator, scientists demonstrate a fully integrated CMOS-compatible low-loss multiple-wavelength source that has high differential slope efficiency at only a few tens of milliwatts of continuous-wave power. The achievement has significant implications for telecommunications and on-chip optical interconnects in computers.read more
Citations
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Journal ArticleDOI
Optical frequency conversion in integrated devices [Invited]
Lucia Caspani,D. Duchesne,Ksenia Dolgaleva,S.J. Wagner,Marcello Ferrera,Luca Razzari,Alessia Pasquazi,Marco Peccianti,David J. Moss,J. Stewart Aitchison,Roberto Morandotti +10 more
TL;DR: In this article, the authors review the 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 waveguide.
Journal ArticleDOI
Nonlinear Coupling of Linearly Uncoupled Resonators.
TL;DR: A system composed of two resonators that are coupled solely through a nonlinear interaction, and where the linear properties of each resonator can be controlled locally, is demonstrated.
Journal ArticleDOI
Direct observations of thermalization to a Rayleigh–Jeans distribution in multimode optical fibres
Hamed Pourbeyram,Pavel Sidorenko,Fan O. Wu,Nicholas Bender,Logan G. Wright,Demetrios N. Christodoulides,Frank W. Wise +6 more
Journal ArticleDOI
Microwave and RF signal processing based on integrated soliton crystal optical microcombs
TL;DR: In this article, the authors review recent progress on microcomb-based photonic RF signal processors, including true time delays, reconfigurable filters, Hilbert transformers, differentiators, and channelizers.
Journal ArticleDOI
Microwave photonic fractional Hilbert transformer with an integrated optical soliton crystal micro-comb
Mengxi Tan,Xingyuan Xu,Bill Corcoran,Jiayang Wu,Andreas Boes,Thach G. Nguyen,Sai T. Chu,Brent E. Little,Roberto Morandotti,Arnan Mitchell,David J. Moss +10 more
TL;DR: In this article, a photonic microwave and RF fractional Hilbert transformer based on an integrated Kerr micro-comb source was proposed, achieving a phase ripple of < 0.15 rad within the 3-dB pass-band, with bandwidths ranging from 5 to 9 octaves, depending on the order.
References
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Femtosecond pulse shaping using spatial light modulators
TL;DR: In this article, the field of femtosecond pulse shaping is reviewed, and applications of pulse shaping to optical communications, biomedical optical imaging, high power laser amplifiers, quantum control, and laser-electron beam interactions are reviewed.
Journal ArticleDOI
Optical frequency synthesizer for precision spectroscopy
Ronald Holzwarth,Th. Udem,Theodor W. Hänsch,Jonathan Knight,William J. Wadsworth,P. St. J. Russell +5 more
TL;DR: The frequency comb generated by a femtosecond mode-locked laser is used and broadened to more than an optical octave in a photonic crystal fiber to realize a frequency chain that links a 10 MHz radio frequency reference phase-coherently in one step to the optical region.
Journal ArticleDOI
Direct link between microwave and optical frequencies with a 300 THz femtosecond laser comb
Scott A. Diddams,David J. Jones,Jun Ye,Steven T. Cundiff,John L. Hall,Jinendra Kumar Ranka,Robert S. Windeler,Ronald Holzwarth,Thomas Udem,Theodor W. Hänsch +9 more
TL;DR: A great simplification in the long-standing problem of measuring optical frequencies in terms of the cesium primary standard is demonstrated, enabling us to measure the 282 THz frequency of an iodine-stabilized Nd:YAG laser directly in Terms of the microwave frequency that controls the comb spacing.
Journal ArticleDOI
Ultralow-threshold Raman laser using a spherical dielectric microcavity
TL;DR: This work demonstrates a micrometre-scale, nonlinear Raman source that has a highly efficient pump–signal conversion (higher than 35%) and pump thresholds nearly 1,000 times lower than shown before, which represents a route to compact, ultralow-threshold sources for numerous wavelength bands that are usually difficult to access.
Journal ArticleDOI
An all-silicon Raman laser
Haisheng Rong,Ansheng Liu,Richard Jones,Oded Cohen,Dani Hak,Remus Nicolaescu,Alexander W. Fang,Mario J. Paniccia +7 more
TL;DR: The experimental demonstration of Raman lasing in a compact, all-silicon, waveguide cavity on a single silicon chip represents an important step towards producing practical continuous-wave optical amplifiers and lasers that could be integrated with other optoelectronic components onto CMOS-compatible silicon chips.