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Ultrafast, electrooptic testing of superconducting electronics

Marc Currie

Published Jul 1, 1999• 0 citations
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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.

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Ultrafast superconducting optoelectronics

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Ultrafast phenomena, optoelectronics, and superconductivity are acknowledged fields of technological importance and a very large amount of research has been performed in these areas in recent years. In modern, highly-advanced digital electronic circuits, the primary function of high-performance, high-speed signal processing is given to superconducting single-flux-quantum (SFQ) logical devices, based on resistively-shunted Josephson tunnel junctions. The development of this branch of digital electronics requires ultrafast, and ultra sensitive optical-to-electrical transducers for fiber optic interconnects, which must be able to transform to the electrical domain the input information coded in the form of a train of ultrafast optical pulses and, subsequently, feed it into the SFQ processor.

IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS)•Jan 20, 2003•5 citations
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.
Ultrafast phenomena, optoelectronics, and superconductivity are acknowledged fields of technological importance and a very large amount of research has been performed in these areas in recent years. In modern, highly-advanced digital electronic circuits, the primary function of high-performance, high-speed signal processing is given to superconducting single-flux-quantum (SFQ) logical devices, based on resistively-shunted Josephson tunnel junctions. The development of this branch of digital electronics requires ultrafast, and ultra sensitive optical-to-electrical transducers for fiber optic interconnects, which must be able to transform to the electrical domain the input information coded in the form of a train of ultrafast optical pulses and, subsequently, feed it into the SFQ processor.