The basic concepts of the ultrafast optoelectronic interface for superconducting digital electronics are presented. Several implementations of both the input optical-to-electrical and the output electrical-to-optical transducers are discussed. As an example, an optoelectronic telecommunication router is used that is capable of switching signals at a >100 Gbit s −1 rate on a single wavelength. We demonstrate that superconducting optoelectronics emerges as the ultimate solution to the ultrafast input/output (I/O) interface of single-flux-quantum (SFQ)-based, superconducting digital electronics.The basic concepts of the ultrafast optoelectronic interface for superconducting digital electronics are presented. Several implementations of both the input optical-to-electrical and the output electrical-to-optical transducers are discussed. As an example, an optoelectronic telecommunication router is used that is capable of switching signals at a >100 Gbit s −1 rate on a single wavelength. We demonstrate that superconducting optoelectronics emerges as the ultimate solution to the ultrafast input/output (I/O) interface of single-flux-quantum (SFQ)-based, superconducting digital electronics.

Superconductor Science and TechnologyNov 14, 200121 citations

Superconducting Digital Electronics – An overview

Pascal Febvre

Mar 14, 20180 citations

Superconducting Optoelectronic Neurons IV: Transmitter Circuits

Jeffrey M. Shainline, Adam N. McCaughan, Sonia Mary Buckley +2 more

A superconducting optoelectronic neuron will produce a small current pulse upon reaching threshold. We present an amplifier chain that converts this small current pulse to a voltage pulse sufficient to produce light from a semiconductor diode. This light is the signal used to communicate between neurons in the network. The amplifier chain comprises a thresholding Josephson junction, a relaxation oscillator Josephson junction, a superconducting thin-film current-gated current amplifier, and a superconducting thin-film current-gated voltage amplifier. We analyze the performance of the elements in the amplifier chain in the time domain to calculate the energy consumption per photon created for several values of light-emitting diode capacitance and efficiency. The speed of the amplification sequence allows neuronal firing up to at least 20\,MHz with power density low enough to be cooled easily with standard $^4$ He cryogenic systems operating at 4.2\,K.A superconducting optoelectronic neuron will produce a small current pulse upon reaching threshold. We present an amplifier chain that converts this small current pulse to a voltage pulse sufficient to produce light from a semiconductor diode. This light is the signal used to communicate between neurons in the network. The amplifier chain comprises a thresholding Josephson junction, a relaxation oscillator Josephson junction, a superconducting thin-film current-gated current amplifier, and a superconducting thin-film current-gated voltage amplifier. We analyze the performance of the elements in the amplifier chain in the time domain to calculate the energy consumption per photon created for several values of light-emitting diode capacitance and efficiency. The speed of the amplification sequence allows neuronal firing up to at least 20\,MHz with power density low enough to be cooled easily with standard $^4$He cryogenic systems operating at 4.2\,K.

arXiv:1805.01941May 4, 20186 citations

Optoelectronic mixing in NbN superconducting nanowire single photon detectors

Zhizhong Yan, A. Hamed Majedi

In this paper, we present our experimental results on the electrically pumped optoelectronic mixing effect exhibited in a niobium nitride (NbN) superconducting nanowire. The experimental setup in order to test the mixer has been reported in detail. This superconductive nanowire optoelectronic mixer demonstrates photodetection and mixing in an integrated manner. We have explored both effects under a great variety of external conditions, such as temperature and bias current, in order to seek potential ways toward quantum optoelectronic detection and mixing by such nanowire device.In this paper, we present our experimental results on the electrically pumped optoelectronic mixing effect exhibited in a niobium nitride (NbN) superconducting nanowire. The experimental setup in order to test the mixer has been reported in detail. This superconductive nanowire optoelectronic mixer demonstrates photodetection and mixing in an integrated manner. We have explored both effects under a great variety of external conditions, such as temperature and bias current, in order to seek potential ways toward quantum optoelectronic detection and mixing by such nanowire device.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEJun 10, 20091 citation

Elements of Hybrid Opto-superconducting Convolutional Neural Networks

Andrey E. Schegolev, N. V. Klenov, Maxim V Tereshonok +1 more

International Conference on Photonics, Optics and Laser TechnologyJan 1, 20201 citation

^4

He cryogenic systems operating at 4.2\,K.