1.6Tbps Coherent 2-Channel Transceiver Using a Monolithic Tx/Rx InP PIC and Single SiGe ASIC

Lal, V.; Studenkov, P.; Frost, Thomas; Tsai, Huan-Shang; Behnia, Behzad; Osenbach, J.W.; Wolf, S.; Going, Ryan; Porto, Stefano; Maher, Robert; Hodaei, Hossein; Zhang, J.; Giovanni, Carlo Di; Hoshino, Kazuyoshi; Vallaitis, T.; Ellis, Bryan; Yan, J.; Fong, Keng Leong; Sooudi, Ehsan; Kuntz, M.; Buggaveeti, S.; Pavinski, D.; Sanders, Steve; Wang, Z.; Hoefler, Gloria E.; Evans, Pete; Corzine, S.; Butrie, T.; Ziari, M.; Kish, Fred; Welch, David

doi:10.1364/ofc.2020.m3a.2

Cited by 21 publications

(7 citation statements)

References 3 publications

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“…Supplementary Table 2 compares the performances with the state-of-the-art OCRs, including the number of PDs, bandwidth, receiving capacity, modulation format, and shot noise caused by dark current. The overall performances of our OCR in terms of bandwidth and receiving capacity (Gbaud) are comparable to the traditional silicon-germanium 48 or III-V-based 49 OCRs. The larger shot noise caused by the dark current of this graphene-based OCR may reduce the sensitivity of the OCR (See Supplementary Note 4), which can be further vanished by the unbiased photothermoelectric-effect graphene-based PDs 27 .…”

Section: Discussionmentioning

confidence: 84%

Ultrahigh-speed graphene-based optical coherent receiver

Wang

Jiang

et al. 2021

Nat Commun

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Graphene-based photodetectors have attracted significant attention for high-speed optical communication due to their large bandwidth, compact footprint, and compatibility with silicon-based photonics platform. Large-bandwidth silicon-based optical coherent receivers are crucial elements for large-capacity optical communication networks with advanced modulation formats. Here, we propose and experimentally demonstrate an integrated optical coherent receiver based on a 90-degree optical hybrid and graphene-on-plasmonic slot waveguide photodetectors, featuring a compact footprint and a large bandwidth far exceeding 67 GHz. Combined with the balanced detection, 90 Gbit/s binary phase-shift keying signal is received with a promoted signal-to-noise ratio. Moreover, receptions of 200 Gbit/s quadrature phase-shift keying and 240 Gbit/s 16 quadrature amplitude modulation signals on a single-polarization carrier are realized with a low additional power consumption below 14 fJ/bit. This graphene-based optical coherent receiver will promise potential applications in 400-Gigabit Ethernet and 800-Gigabit Ethernet technology, paving another route for future high-speed coherent optical communication networks.

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Section: Discussionmentioning

confidence: 84%

Ultrahigh-speed graphene-based optical coherent receiver

Wang

Jiang

et al. 2021

Nat Commun

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“…The quick evolution of the optical transport systems toward the elastic network paradigm has motivated the development of higher baud rate transmitters that can be dynamically adapted to various modulation formats and transmission distance. InP PICs and integrated coherent transceivers have achieved remarkable performance and commercial success in coherent optical transmission systems [72][73][74][75]. After decades of falling behind, silicon photonics has been able to catch up quickly over the last decade, thanks to the widely accessible foundry processes leveraging legacy CMOS facilities, as discussed in Section 2.…”

Section: Silicon Coherent Optical Transceiversmentioning

confidence: 99%

Scaling capacity of fiber-optic transmission systems via silicon photonics

2020

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The tremendous growth of data traffic has spurred a rapid evolution of optical communications for a higher data transmission capacity. Next-generation fiber-optic communication systems will require dramatically increased complexity that cannot be obtained using discrete components. In this context, silicon photonics is quickly maturing. Capable of manipulating electrons and photons on the same platform, this disruptive technology promises to cram more complexity on a single chip, leading to orders-of-magnitude reduction of integrated photonic systems in size, energy, and cost. This paper provides a system perspective and reviews recent progress in silicon photonics probing all dimensions of light to scale the capacity of fiber-optic networks toward terabits-per-second per optical interface and petabits-per-second per transmission link. Firstly, we overview fundamentals and the evolving trends of silicon photonic fabrication process. Then, we focus on recent progress in silicon coherent optical transceivers. Further scaling the system capacity requires multiplexing techniques in all the dimensions of light: wavelength, polarization, and space, for which we have seen impressive demonstrations of on-chip functionalities such as polarization diversity circuits and wavelength- and space-division multiplexers. Despite these advances, large-scale silicon photonic integrated circuits incorporating a variety of active and passive functionalities still face considerable challenges, many of which will eventually be addressed as the technology continues evolving with the entire ecosystem at a fast pace.

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“…A step in this direction, exploiting the advantages of integrated photonics, is reported in [48], where two optical transmitters and receivers are integrated in a monolithic InP interfaced with a SiGe ASIC. The transceiver delivers 800 Gb/s per wavelength over a 50 GHz bandwidth using digital subcarrier multiplexing at 100 Gb/s per carrier and PCS 64-QAM, yielding 4.5 bits/symbol.…”

Section: Enabling Optical Transmission Technologiesmentioning

confidence: 99%

Optical transport for Industry 4.0 [Invited]

Sabella

Iovanna

Bottari

et al. 2020

J. Opt. Commun. Netw.

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Industry 4.0 represents a new industrial revolution that will dramatically change the landscape in many sectors, including manufacturing and logistics. Robotics, machine intelligence, and new forms of connectivity are key ingredients of this paradigm. 5G mobile networks are expected to play a crucial role, supporting a lower cost per transported bit in air and a lower latency compared with 4G. 5G radio ensures different performance levels in very heterogeneous coverage situations, including a mix of indoor and outdoor contexts. Mobile network evolution requires new transport networks to address the new challenging requirements: increasing transmission capacity, compatibility with latency-critical applications, significantly reduced cost with respect to conventional metro network segments, lower energy consumption, and, in some cases, switching capabilities. Optical communications and networking will play a key role in these new transport scenarios, where tailored transmission techniques and network architectures are needed. This paper discusses the requirements and challenges that Industry 4.0 scenarios pose to optical communications and networking architectures. Performance of optical transmission schemes, tailored to support these new radio access networks, are detailed and benchmarked. A network test bed, focused on transport for vertical use cases, is described. Experimental results demonstrate the compliance of the proposed optical transport network with a latency-critical cloud robotics application, which presents industry-grade connectivity needs.

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1.6Tbps Coherent 2-Channel Transceiver Using a Monolithic Tx/Rx InP PIC and Single SiGe ASIC

Abstract: We present a 1.6Tbps coherent transceiver delivering 800Gbps/wave transmission using integrated Tx/Rx functions with 50GHz bandwidth and 50kHz linewidth tunable lasers on a single 2-channel InP PIC, paired with a SiGe Driver and TIA ASIC.

Cited by 21 publications

References 3 publications

Ultrahigh-speed graphene-based optical coherent receiver

Ultrahigh-speed graphene-based optical coherent receiver

Scaling capacity of fiber-optic transmission systems via silicon photonics

Optical transport for Industry 4.0 [Invited]

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