Low-Power High-Speed Hybrid Temperature Heterogeneous Technology Digital Data Link

Gupta, Deepnarayan; Bardin, Joseph C.; Inamdar, Amol; Dayalu, A.; Sarwana, S.; Ravindran, Prasana; Chang, Su-Wei; Coskun, Ahmet Hakan; Sadrabadi, Mohammad Ghadiri

doi:10.1109/tasc.2013.2257231

Cited by 17 publications

(3 citation statements)

References 17 publications

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“…For example, Josephson junctions enable many applications by developing semiconductorsuperconductor hybrid structures. Moreover, recent progress in quantum computing, quantum sensing, and cryogenic electronics has shown that semiconductor-superconductor hybrid structures are needed for artificial intelligence, enhanced sensor performance, next-generation computing, signal processing, and quantum optoelectronic devices [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Direct growth of crystalline SiGe nanowires on superconducting NbTiN thin films

Wang

Thomas²,

Baldwin³

et al. 2023

Nanotechnology

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Novel heterostructures created by coupling one-dimensional semiconductor nanowires with a superconducting thin film show great potential toward next-generation quantum computing. Here, by growing high-crystalline SiGe nanowires on a NbTiN thin film, the resulting heterostructure exhibits Ohmic characteristics as well as a shift of the superconducting transition temperature (Tc). The structure was characterized at atomic resolution showing a sharp SiGe/NbTiN interface without atomic interdiffusion. Lattice spacing, as calculated from large-area X-ray diffraction experiments, suggests an out-of-plane compressive strain within the NbTiN films upon growth of SiGe nanowires, which explains the downward shift of the superconductivity behavior. The present results provide scientific insights into heterostructure coupling from multi-dimensions showing tunable of superconducting properties that provide benefits for quantum science application.

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Section: Introductionmentioning

confidence: 99%

Direct growth of crystalline SiGe nanowires on superconducting NbTiN thin films

Wang

Thomas²,

Baldwin³

et al. 2023

Nanotechnology

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“…[1]- [5]. There were multiple attempts to address this problems [6]- [10] using allelectrical or electro-optical (E/O) links. The E/O data links are generally preferred for communication in high-performance computing systems.…”

Section: Introductionmentioning

confidence: 99%

Development of Energy-efficient Cryogenic Optical (ECO) data link

Mukhanov

Vernik

Kirichenko

et al. 2013

2013 IEEE 14th International Superconductive Electronics Conference (ISEC)

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We develop an energy efficient digital data link connecting cryogenic superconducting single flux quantum (SFQ) circuits to room-temperature electronics. The design is based on low-temperature (4 K) superconductor ERSFQ SFQ/dc drivers, high-temperature superconductor data cables spanning 4 K to 70 K temperature stages, mid-temperature (70 K) polarization modulation vertical cavity surface emitting lasers (PM VCSELs), and fiber optic links to room temperature electronics. The Energy-efficient Cryogenic Optical (ECO) data link design is based on balancing power dissipation and signal gain at each temperature stage to maximize overall energy efficiency following the recently introduced Thermo-Gain Rule. To achieve VCSEL light emission with two switchable distinct polarization modes, a cruciform-shaped anisotropic optical cavity is formed by fabrication of a photonic crystal with etched periodic air holes surrounding the unetched cruciform region. In this report, we present the results of design, fabrication, and preliminary testing of the ECO data link components.

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“…To overcome these limitations, previous demonstrations have relied on the use of an interfacing device between the superconducting and the electro-optic devices. The use of semiconductor amplifiers is possible [4][5][6][7][8][9] , but its mW-scale power dissipation hinders its scalability. Another alternative is to use a nanocryotron 10 , but this requires actively resetting the device every time a pulse is generated.…”

mentioning

confidence: 99%

Readout of Superconducting Nanowire Single Photon Detectors through Forward Biased Optical Modulators

de Cea,

Wollman,

Atabaki

et al. 2020

Preprint

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Scalable, high speed data transfer between cryogenic (0.1-4K) and room temperature environments is instrumental in a broad range of fields including quantum computing, superconducting electronics, single photon imaging and space-based communications. A promising approach to overcome the limitations of conventional wire-based readout is the use of optical fiber communication. Optical fiber presents a 100-1,000x lower heat load than conventional electrical wiring, relaxing the requirements for thermal anchoring, and is also immune to electromagnetic interference, which allows routing of sensitive signals with improved robustness to noise and crosstalk. Most importantly, optical fibers allow for very high bandwidth densities (in the Tbps/mm 2 range) by carrying multiple signals through the same physical fiber (Wavelength Division Multiplexing, WDM). Here, we demonstrate for the first time optical readout of a superconducting nanowire single-photon detector (SNSPD) directly coupled to a CMOS photonic modulator, without the need for an interfacing device. By operating the modulator in the forward bias regime at a temperature of 3.6 K, we achieve very

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Low-Power High-Speed Hybrid Temperature Heterogeneous Technology Digital Data Link

Cited by 17 publications

References 17 publications

Direct growth of crystalline SiGe nanowires on superconducting NbTiN thin films

Direct growth of crystalline SiGe nanowires on superconducting NbTiN thin films

Development of Energy-efficient Cryogenic Optical (ECO) data link

Readout of Superconducting Nanowire Single Photon Detectors through Forward Biased Optical Modulators

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