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Soliton Single Pulse Generator

IP.com Disclosure Number: IPCOM000042210D
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-03
Document File: 1 page(s) / 13K

Publishing Venue

IBM

Related People

Kaplan, SB: AUTHOR [+2]

Abstract

Directly coupling a two-junction interferometer, biased much below its critical points, via a small coupling resistance to a forked soliton device, provides a circuit which produces a solitary soliton in response to a poorly configured input signal. This article describes a selection device which produces a solitary soliton in response to a poorly configured input signal. The solitary soliton generator comprises a soliton fork device which is biased at a certain point on its threshold curve; it will permit the first injected soliton to pass as the solitary soliton traversing the selected fork pathway but will direct additional injected solitons to an alternative fork pathway. Fig. 1 shows the soliton solitary pulse generator of the invention in schematic presentation. Fig. 2 is a simulation of the pulse reaching the output.

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Soliton Single Pulse Generator

Directly coupling a two-junction interferometer, biased much below its critical points, via a small coupling resistance to a forked soliton device, provides a circuit which produces a solitary soliton in response to a poorly configured input signal. This article describes a selection device which produces a solitary soliton in response to a poorly configured input signal. The solitary soliton generator comprises a soliton fork device which is biased at a certain point on its threshold curve; it will permit the first injected soliton to pass as the solitary soliton traversing the selected fork pathway but will direct additional injected solitons to an alternative fork pathway. Fig. 1 shows the soliton solitary pulse generator of the invention in schematic presentation. Fig. 2 is a simulation of the pulse reaching the output. Fig. 3 is a schematic presentation of a tandem forked soliton device for solitary soliton pulse generation with wider margins. Fig. 4 is a schematic diagram of an analog-to-digital converter utilizing the soliton solitary pulse generator. Fig. 5 is a voltage/time graphic presentation of the output from the soliton solitary pulse generator. A two-junction interferometer 1 (Fig. 1) is biased much below its critical points and directly coupled to a forked soliton device 2 via a small coupling resistance 3. The forked soliton device is biased by a magnetically coupled control current. When IC1 crosses the mode boundary of the interferometer, a soliton is generated, injected into the forked soliton device, and steered along the selected pathway to the output. Even if two solitons should be generated by the interferometer, the first solitary soliton only passes along the selected pathway to the output, while the second soliton passes along the nonselected pathway to a scupper. This technique wid...