All-optical proteretic photonic integrated device
AssigneeBoard of Trustees of Southern Illinois University
InventorsMohammad R. Sayeh, Nima Davoudzadeh Mahboub Sedigh, Mohamad Tafazoli Mehrjerdi
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Abstract
An apparatus and a method for a design and a simulation of an all-optical proteretic bi-stable device. The proteresis is a reversed hysteresis with an interesting characteristic which increases the oscillation frequency of a feed-back system with a relaxation dynamics by reducing the feed-back delay. The calculation of the bi-stable device parameters, a simulation of the theoretical device, and a simulation of the all-optical device are given. Applications of the proteretic device in ultra-high speed oscillations are also disclosed.
Claims12
A proteretic bi-stable device comprising:
- a first inverting bi-stable device having a hysteretic threshold function, a first input, and a first output, where said first input and said first output are coupled to a second input of a second bi-stable device having a hysteretic threshold function;
- and
- an input signal, where switching of the proteretic bi-stable device occurs when a lower threshold is reached in an increasing direction of the input signal and when an upper threshold is reached in a decreasing direction of the input signal.
Dependencies are inferred from the claim text.