Demonstration of all optical logic gates by single/differential typed vertical cavity laser with depleted optical thyristor

Woon-Kyung Choi; Doo-Gun Kim; Yon-Tae Moon; Do-Gyun Kim; Hoseong Kim; Tae Kyung Chung; Young-Wan Choi; Kent D. Choquette; Seok Lee; Deok-Ha Woo

doi:10.1117/12.699599

7 February 2007 Demonstration of all optical logic gates by single/differential typed vertical cavity laser with depleted optical thyristor

Woon-Kyung Choi, Doo-Gun Kim, Yon-Tae Moon, Do-Gyun Kim, Hoseong Kim, Tae Kyung Chung, Young-Wan Choi, Kent D. Choquette, Seok Lee, Deok-Ha Woo

Author Affiliations +

Proceedings Volume 6484, Vertical-Cavity Surface-Emitting Lasers XI; 64840B (2007) https://doi.org/10.1117/12.699599
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Latching optical switches and optical logic gates with AND or OR, plus the INVERT functionality are demonstrated for the first time by the monolithic integration of a single and differential typed vertical cavity lasers with depleted optical thyristor (VCL-DOT) structure with a low threshold current of 0.65 mA, a high on/off contrast ratio of more than 50 dB, a high slope efficiency of 0.38 mW/mA, and high sensitivity to input optical light. By simply changing a reference switching voltage, this single-typed device operates as two logic functions, optical logic AND and OR. The differential-typed VCL-DOTs operate also as all logic gates, AND/NAND, OR/NOR, and INVERT function by simple change of a reference input light power. The thyristor laser fabricated by using the oxidation process shows a high optical output power efficiency and a high sensitivity to the optical input light.

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Woon-Kyung Choi, Doo-Gun Kim, Yon-Tae Moon, Do-Gyun Kim, Hoseong Kim, Tae Kyung Chung, Young-Wan Choi, Kent D. Choquette, Seok Lee, and Deok-Ha Woo "Demonstration of all optical logic gates by single/differential typed vertical cavity laser with depleted optical thyristor", Proc. SPIE 6484, Vertical-Cavity Surface-Emitting Lasers XI, 64840B (7 February 2007); https://doi.org/10.1117/12.699599

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