All-optical half adder using single mechanism of XGM in semiconductor optical amplifiers

Sang Hun Kim; Jae Hun Kim; Jae Won Choi; Chang Wan Son; Seong Hae Ok; Young Tae Byun; Young Min Jhon; Seok Lee; Deok Ha Woo; Sun Ho Kim

doi:10.1117/12.576572

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20 January 2005 All-optical half adder using single mechanism of XGM in semiconductor optical amplifiers

Sang Hun Kim, Jae Hun Kim, Jae Won Choi, Chang Wan Son, Seong Hae Ok, Young Tae Byun, Young Min Jhon, Seok Lee, Deok Ha Woo, Sun Ho Kim

Author Affiliations +

Proceedings Volume 5628, Semiconductor Lasers and Applications II; (2005) https://doi.org/10.1117/12.576572
Event: Photonics Asia, 2004, Beijing, China

Abstract

By using gain nonlinearity characteristics of semiconductor optical amplifier, an all-optical binary half adder at 10 Gbps is demonstrated. The half adder operates in single mechanism, which is XGM. The half adder utilizes two logic functions of SUM and CARRY, which can be demonstrated by using the XOR gate and the AND gate, respectively. In the XOR (A NOT B + NOT A B) gate, Boolean A NOT B is obtained by using signal A as a probe beam and signal B as a pump beam in SOA-1. Also, Boolean NOT A B is obtained by using signal B as a probe beam and signal A as a pump beam in SOA-2. By adding two outputs from SOA-1 and SOA-2, Boolean A NOT B + NOT A B (logic XOR) can be obtained. In the AND (AB ) gate, Boolean NOT B is firstly obtained by using signal B as a pump beam and clock signal as a probe beam in SOA-3. By passing signal A as a probe beam and NOT B as a pump beam through SOA-4, Boolean AB is acquired. By achieving this experiment, we also explored the possibilities for the enhanced complex logic operation and higher chances for multiple logic integration.

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Sang Hun Kim, Jae Hun Kim, Jae Won Choi, Chang Wan Son, Seong Hae Ok, Young Tae Byun, Young Min Jhon, Seok Lee, Deok Ha Woo, and Sun Ho Kim "All-optical half adder using single mechanism of XGM in semiconductor optical amplifiers", Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); https://doi.org/10.1117/12.576572

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