Amplifying and synchronizing signals in optical computing system

Details Amplifying and synchronizing signals in optical computing system Amplifying and synchronizing signals in optical computing system

1992-10-02

1994-03-15

Lerner, Martin

Optical: systems and elements

Optical computing without diffraction

359 20, 359108, 359330, 364713, 385 24, 385122, G02F 300, G02B 626, G02B 628

Patent

active

052950107

ABSTRACT:
Amplification and synchronization of photon pulses in optical computing chips is accomplished by placing parametric amplifying devices at predetermined spatial locations in the light conductive paths that make up the optical circuits in the chip. The laser pumping signal for the parametric amplifiers is clocked by a system clock which also clocks the generation of the data photon pulses in the optical circuits. By synchronizing the arrival of a pumping pulse with the arrival of the photon pulse at a parametric amplifier, the data pulse can be amplified, reshaped and resynchronized. The pumping pulse can be directed to the spatially located parametric amplifiers on the chip in a number of different ways. The chip could be masked except for the parametric amplifiers, and the entire chip could be illuminated by the pumping laser though collimating lens. If the chip is not masked, then pumping light must be directed only to the parametric amplifiers. This could be done with a hologram to spatially distribute the light beams to the amplifiers. Alternatively, the beam from the pumping laser could be piped by light conducting fibers to the parametric amplifiers with light pipes. Further, the light pipes for the pumping pulses could be light conducting channels in a second optical chip, or an additional optical circuit layer.

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