Large-Scale Photonic Integrated Circuits

Nagarajan, Radhakrishnan; Kato, Masaki; Pleumeekers, J.L.; Evans, Pete; Hurtt, S.; Dentai, A.G.; Missey, M.; Chen, A.; Mathur, A.; Lambert, Damien; Chavarkar, P.; Bäck, Johan; Muthiah, R.; Murthy, S.; Salvatore, R.A.; Joyner, C.H.; Rossi, J. A.; Schneider, Richard; Ziari, M.; Kish, Fred; Welch, David

doi:10.1109/iciprm.2007.381115

Cited by 38 publications

(53 citation statements)

References 2 publications

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“…We fabricate the reconfigurable MDM-WDM silicon microring resonators on a 250 nm SOI wafer with 3 mm of buried oxide using standard CMOS fabrication processes. We patterned the waveguides using e-beam lithography with the dimensions as followed: the input/output ports and the microring are 450 nm wide; the TE 0 , TE 1 evaporated on the microring resonators above the cladding to create the 1-mmwide heaters. Finally, 500 nm of gold (Au) are evaporated to define the electrical wires and contact pads using a lift-off process.…”

Section: Methodsmentioning

confidence: 99%

“…C urrent-integrated photonics operate almost exclusively in the single-mode regime and utilize wavelength-division multiplexing (WDM) 1,2 , which supports limited scalability in bandwidth density. In contrast, fibre communications are increasingly targeting multimode operation in conjunction with WDM to further scale the communication bandwidth transmitted per fibre 3 .…”

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confidence: 99%

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WDM-compatible mode-division multiplexing on a silicon chip

et al. 2014

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Significant effort in optical-fibre research has been put in recent years into realizing mode-division multiplexing (MDM) in conjunction with wavelength-division multiplexing (WDM) to enable further scaling of the communication bandwidth per fibre. In contrast, almost all integrated photonics operate exclusively in the single-mode regime. MDM is rarely considered for integrated photonics because of the difficulty in coupling selectively to high-order modes, which usually results in high inter-modal crosstalk. Here we show the first microring-based demonstration of on-chip WDM-compatible mode-division multiplexing with low modal crosstalk and loss. Our approach can potentially increase the aggregate data rate by many times for on-chip ultrahigh bandwidth communications.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

WDM-compatible mode-division multiplexing on a silicon chip

et al. 2014

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“…By combining components that generate, detect and otherwise control light, PICs facilitate design of photonic architectures that prove far more powerful than any single photonic element alone. Already, they have sparked great interest for communications and computing technology 3,4 . Other rapidly emerging applications meanwhile include light detection and ranging 5 , optofluidics 6 and more.…”

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confidence: 99%

Nanophotonic integrated circuits from nanoresonators grown on silicon

Chen

et al. 2014

Nat Commun

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Harnessing light with photonic circuits promises to catalyse powerful new technologies much like electronic circuits have in the past. Analogous to Moore's law, complexity and functionality of photonic integrated circuits depend on device size and performance scale. Semiconductor nanostructures offer an attractive approach to miniaturize photonics. However, shrinking photonics has come at great cost to performance, and assembling such devices into functional photonic circuits has remained an unfulfilled feat. Here we demonstrate an on-chip optical link constructed from InGaAs nanoresonators grown directly on a silicon substrate. Using nanoresonators, we show a complete toolkit of circuit elements including light emitters, photodetectors and a photovoltaic power supply. Devices operate with gigahertz bandwidths while consuming subpicojoule energy per bit, vastly eclipsing performance of prior nanostructure-based optoelectronics. Additionally, electrically driven stimulated emission from an as-grown nanostructure is presented for the first time. These results reveal a roadmap towards future ultradense nanophotonic integrated circuits.

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“…Promisingly, recent rapid advances of high-index-contrast waveguides, that is, silicon-on-insulator (SOI), silicon nitride (Si 3 N 4 ), and indium phosphide (InP), have successfully yielded many functions as standard building blocks for creating compact high-performance PICs. Besides, the constant improvement of fabrication maturity points toward large-scale integration of thousands of these functions with high-performance uniformity and repeatability [35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Programmable optical processor chips: toward photonic RF filters with DSP-level flexibility and MHz-band selectivity

et al. 2017

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Integrated optical signal processors have been identified as a powerful engine for optical processing of microwave signals. They enable wideband and stable signal processing operations on miniaturized chips with ultimate control precision. As a promising application, such processors enables photonic implementations of reconfigurable radio frequency (RF) filters with wide design flexibility, large bandwidth, and high-frequency selectivity. This is a key technology for photonic-assisted RF front ends that opens a path to overcoming the bandwidth limitation of current digital electronics. Here, the recent progress of integrated optical signal processors for implementing such RF filters is reviewed. We highlight the use of a low-loss, high-index-contrast stoichiometric silicon nitride waveguide which promises to serve as a practical material platform for realizing high-performance optical signal processors and points toward photonic RF filters with digital signal processing (DSP)-level flexibility, hundreds-GHz bandwidth, MHz-band frequency selectivity, and full system integration on a chip scale.

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Large-Scale Photonic Integrated Circuits

Cited by 38 publications

References 2 publications

WDM-compatible mode-division multiplexing on a silicon chip

WDM-compatible mode-division multiplexing on a silicon chip

Nanophotonic integrated circuits from nanoresonators grown on silicon

Programmable optical processor chips: toward photonic RF filters with DSP-level flexibility and MHz-band selectivity

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