Nonlinear and bistable optical device

Details Nonlinear and bistable optical device Nonlinear and bistable optical device

G - Physics

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G02F 3/00 (2006.01) G02F 1/015 (2006.01) G02F 1/017 (2006.01) G02F 1/21 (2006.01) G02F 3/02 (2006.01) H01L 31/00 (2006.01) H01L 31/0352 (2006.01)

Patent

CA 1213965

- 1 - Abstract The invention is a nonlinear or bistable optical device having a low switching energy. The invention uses a component responsive to light for generating a photo- current, a structure having a semiconductor quantum well region, and component responsive to the photocurrent for electrically controlling an optical absorption of the semiconductor quantum well region. The optical absorption of the semiconductor quantum well region varies in response to variations in the photocurrent. A photodiode or photo- transistor may be used as the component responsive to light, and may be made integral with the structure having the semiconductor quantum well region. An array of devices may be fabricated on a single chip for parallel logic processing.

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