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
Phase steps and resonator detuning measurements in microresonator frequency combs
TL;DR: A way of measuring resonator dispersion and detuning of comb modes in a hot resonator while generating an optical frequency comb is introduced and unpredicted comb states with discrete π and π/2 steps in the comb phases that are not observed in conventional optical frequency combs are presented.
Journal ArticleDOI
A Survey of Optical Carrier Generation Techniques for Terabit Capacity Elastic Optical Networks
Muhammad Imran,Prince M. Anandarajah,Aleksandra Kaszubowska-Anandarajah,Nicola Sambo,Luca Poti +4 more
TL;DR: This survey identifies salient features of optical multicarrier generators, review and compare these techniques both from a physical and network layer perspective and discusses the impact of such sources on the network performance and real-world deployment strategies with reference to cost, power consumption, and level of flexibility.
Journal ArticleDOI
RF and Microwave Fractional Differentiator Based on Photonics
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: The experimental results show good agreement with theory, confirming the effectiveness of the approach towards high-performance fractional differentiators featuring broad processing bandwidth, high reconfigurability, and potentially reduced sized and cost.
Journal ArticleDOI
Graphene Oxide for Integrated Photonics and Flat Optics.
TL;DR: The recent advances in this emerging field of integrated GO photonics are reviewed, providing an overview of the optical properties of GO as well as methods for the on-chip integration of GO.
Journal ArticleDOI
Graphene oxide waveguide and micro-ring resonator polarizers
Jiayang Wu,Yunyi Yang,Yang Qu,Xingyuan Xu,Yao Liang,Sai T. Chu,Brent E. Little,Roberto Morandotti,Roberto Morandotti,Roberto Morandotti,Baohua Jia,David J. Moss +11 more
TL;DR: In this article, integrated waveguide polarizers and polarization-selective micro-ring resonators (MRRs) were incorporated with layered graphene oxide (GO) films, achieving a high polarization dependent loss (PDL) of ~53.8 dB for the GO-coated waveguide and high polarization extinction ratio of ~8.3dB for the MRR.
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.
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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.