A 10Gb/s Si-photonic transceiver with 150μW 120μs-lock-time digitally supervised analog microring wavelength stabilization for 1Tb/s/mm<sup>2</sup> Die-to-Die Optical Networks

Thonnart, Yvain; Zid, Mounir; González-Jiménez, José Luis; Waltener, Guillaume; Polster, Robert; Dubray, Olivier; Lepin, Florent; Bernabé, Stéphane; Menezo, Sylvie; Parès, G.; Castany, Olivier; Boutafa, Laura; Grosse, Philippe; Charbonnier, B.; Baudot, Charles

doi:10.1109/isscc.2018.8310328

Cited by 16 publications

(14 citation statements)

References 6 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 (a) and (b). Existing solutions rely on resistive heaters which require a linear regulator [14,17,50,57]. However, such linear regulators waste power as heat in their regulation transistors [58].…”

Section: Mrr Thermal Stabilizationmentioning

confidence: 99%

“…Recent research has therefore focused on co-integrating silicon photonic devices with electronic components [7]. Various groups have shown either 2D/2.5D integration [8][9][10][11], 3D integration [12][13][14][15][16][17][18][19][20] or monolithic integration [21][22][23][24][25][26][27] to be possible.…”

Section: Introductionmentioning

confidence: 99%

“…Different solutions relying on MRRs with co-integrated systems (so-called 3D integration schemes) have already been shown. So for instance, transmit drivers and receiving amplifier electronics have been flip-chip bonded to silicon photonic integrated circuits (IC) in [14,15]. These solutions achieve ≥ 1 Tb/s/mm 2 , however without including SER and DES.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Compact Optical TX and RX Macros for Computercom Monolithically Integrated in 45 nm CMOS

Eppenberger

Bonomi

Moor

et al. 2021

J. Lightwave Technol.

View full text Add to dashboard Cite

As the reach of optical communications continues to shrink, photonics is moving from rack-to-rack datacom links to centimeter-scale in-computer applications (computercom) where different architectures are needed. Integrated optical microring resonators (MRRs) are emerging as an attractive choice for fulfilling the more stringent area and efficiency requirements: They offer scaling by wavelength division multiplexing (WDM) and high bandwidth densities. In this paper we present compact electro-optical transmit (TX) and receive (RX) macros for computercom monolithically integrated in 45nm CMOS. They operate with MRR modulators and photodetectors and include all necessary electronics and optics to enable optical links between on-chip data sources and sinks. A most compact implementation for thermal stabilization was enabled by sensing the optical device's bias currents in the driving electronics instead of using external operating point sensing optics. Using a field-effect transistor as heating element -as is possible in monolithic integration platforms -further reduces area and power necessary for thermal control. The TX macro is shown to work for data rates up to 16 Gb/s with a 5.5 dB extinction ratio (ER) and 2.4 dB insertion loss (IL). The RX macro demonstrates a sensitivity of 71 µApp at 12 Gb/s for a BER ≤ 10 -10 . An intra-chip link built with the macros achieves ≤ 2.35 pJ/b electrical efficiency and a BER ≤ 10 -10 at 10 Gb/s. Both macros are realized within 0.0073 mm 2 which amounts to 1.4 Tb/s/mm 2 bandwidth density per macro.

show abstract

Section: Mrr Thermal Stabilizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact Optical TX and RX Macros for Computercom Monolithically Integrated in 45 nm CMOS

Eppenberger

Bonomi

Moor

et al. 2021

J. Lightwave Technol.

View full text Add to dashboard Cite

show abstract

“…Nevertheless, the narrow resonance bandwidths require accurate control of the resonance, which cannot be fully settled at design time, and requires dynamic tuning based on monitoring of the optical signal on the drop-port of the MRR. Closed-loop locking on a wavelength is presented in [9].…”

Section: B Microring-based Silicon Photonic Linksmentioning

confidence: 99%

POPSTAR: a Robust Modular Optical NoC Architecture for Chiplet-based 3D Integrated Systems

Thonnart

Bernabé

Charbonnier

et al. 2020

2020 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

Self Cite

View full text Add to dashboard Cite

Silicon photonics technology is now gaining maturity with increasing levels of design complexity from devices to large photonic integrated circuits. Close integration of control electronics with 3D assembly of photonics and CMOS opens the way to high-performance computing architectures partitioned in chiplets connected by optical NoC on silicon photonic interposers. In this paper, we give an overview of our works on optical links and NoC for manycore systems, from low-level control of photonic devices to high-level system optimization of the optical communications. We detail the POPSTAR optical NoC topology and architecture (Processors On Photonic Silicon interposer Terascale ARchitecture) with electro-optical interface chiplets, the corresponding nested spiral topology for single-writer multiplereader links and the associated control electronics, in charge of high-speed drivers, thermal stabilization and handling of the protocol stack, from data integrity to flow-control, routing and arbitration of the optical communications. The strengths and opportunities for this architecture will be discussed, with a shift in system & implementation constraints with respect to previous optical NoC proposals, and new challenges to be addressed.

show abstract

“…Nevertheless, O-band has turned lately into the dominant spectral regime at all levels of DC hierarchy, spanning from on-board level where ultra-low loss polymer waveguide technology [12] can enable chip-to-chip (C2C) interconnects, up to rack-scale [13] and long-reach transmission, where significant benefits arise from the zero-dispersion properties of standard single-mode fiber (SSMF) at 1300 nm [14]. Facing this reality, silicon photonic TX layouts have gradually started to migrate towards O-band operating modules, with recent demonstrations reporting single-channel RM TX devices with high line-rates of ≥60 Gb/s NRZ [15], [16] that can go beyond 100 Gb/s when employing advanced PAM4 modulation [15]- [17] and several RM-based WDM TX demonstrations having already been reported to reach up to 25 Gb/s line rate capabilities [4], [18], [19]. At the same time, O-band silicon photonic MZM-based WDM TXs have been introduced in 4-channel configurations, demonstrating enhanced line rate capabilities from 10 Gb/s [20] 0733-8724 © 2019 IEEE.…”

Section: Introductionmentioning

confidence: 99%

O-Band Silicon Photonic Transmitters for Datacom and Computercom Interconnects

Pitris

Moralis-Pegios

Alexoudi

et al. 2019

J. Lightwave Technol.

View full text Add to dashboard Cite

Today, the datacenter ecosystems are fueling the demand for novel transmitter (TX) technologies complying with the off-board, on-board, and chip-to-chip computing needs. This has set a new class of requirements for the TX infrastructure that should now offer multiple credentials, namely: high-speed, O-band operation for avoiding dispersion compensation in long distances, wavelength-division multiplexing (WDM) capabilities for higher throughput and multicasting/broadcasting support, and tight copackaging with low-power electronics. Silicon (Si) photonic TXs have been extensively studied toward high-speed and WDM TX engines targeting mainly C-band. Only a limited number of Si-Pho O-band TXs have been reported, however with ≤32 Gb/s/channel line-rate capabilities and with a WDM portfolio that has not been fully explored yet. In this paper, we introduce a novel silicon photonic high-speed O-band TX hardware platform that can meet the current datacom and computercom interconnect requirements. We demonstrate a ring modulator (RM) based four-channel WDM TX at 4 × 40 Gb/s non-return-to-zero (NRZ) operation that supports wavelength parallelism in unicast operation but can also pave the way toward WDM TX engines for the post-100 GbE TX era. Moreover, we present a broadband Si Mach-Zehnder modulator employed in a WDM modulation scheme of 2 × 25 Gb/s NRZ signals and demonstrate multicasting when combined with a 8 × 8 passive arrayed waveguide grating router (AWGR) wavelength router, addressing the broadcasting needs of traffic usually encountered in cache-coherent multisocket settings. Finally, we further demonstrate the tight synergy of O-band Si-RM modulators with high-speed CMOS electronics, presenting an RM-based TX assembly prototype employing a fully depleted silicon-on-insulator CMOS driver, delivering 50-Gb/s NRZ operation.

show abstract

A 10Gb/s Si-photonic transceiver with 150μW 120μs-lock-time digitally supervised analog microring wavelength stabilization for 1Tb/s/mm² Die-to-Die Optical Networks

Cited by 16 publications

References 6 publications

Compact Optical TX and RX Macros for Computercom Monolithically Integrated in 45 nm CMOS

Compact Optical TX and RX Macros for Computercom Monolithically Integrated in 45 nm CMOS

POPSTAR: a Robust Modular Optical NoC Architecture for Chiplet-based 3D Integrated Systems

O-Band Silicon Photonic Transmitters for Datacom and Computercom Interconnects

Contact Info

Product

Resources

About

A 10Gb/s Si-photonic transceiver with 150μW 120μs-lock-time digitally supervised analog microring wavelength stabilization for 1Tb/s/mm2 Die-to-Die Optical Networks

Cited by 16 publications

References 6 publications

Compact Optical TX and RX Macros for Computercom Monolithically Integrated in 45 nm CMOS

Compact Optical TX and RX Macros for Computercom Monolithically Integrated in 45 nm CMOS

POPSTAR: a Robust Modular Optical NoC Architecture for Chiplet-based 3D Integrated Systems

O-Band Silicon Photonic Transmitters for Datacom and Computercom Interconnects

Contact Info

Product

Resources

About

A 10Gb/s Si-photonic transceiver with 150μW 120μs-lock-time digitally supervised analog microring wavelength stabilization for 1Tb/s/mm² Die-to-Die Optical Networks