All-optical flip-flop

Details All-optical flip-flop All-optical flip-flop

2007-11-06

2007-11-06

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

C385S014000, C385S016000, C385S017000, C385S024000, C385S039000, C385S040000, C385S042000, C385S046000, C385S130000, C385S131000, C385S122000

Reexamination Certificate

active

10799786

ABSTRACT:
The present invention provides a set-reset flip-flop operating in an all-optical manner. In this invention, a set pulse is inputted from the setting port. In doing so, only oscillation in set mode is generated at the multi-mode interference portion in a waveguide. As a result, a non-inverting output Q is obtained from the non-inverting output port. This state is then continued even if the set pulse input goes off. Next, a reset pulse is inputted to the resetting port. In doing so, at the multi-mode interference portion, oscillation of light in the set mode is halted, and oscillation in the reset mode occurs. As a result, it is possible to obtain an inverting output Q-bar from the inverting output port. This state is then continued even if the reset pulse goes off.

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