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Proceedings Paper

All-optical half adder using single mechanism of XGM in semiconductor optical amplifiers
Author(s): 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
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Paper 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.

Paper Details

Date Published: 20 January 2005
PDF: 8 pages
Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); doi: 10.1117/12.576572
Show Author Affiliations
Sang Hun Kim, Korea Institute of Science and Technology (South Korea)
Jae Hun Kim, Korea Institute of Science and Technology (South Korea)
Jae Won Choi, Korea Institute of Science and Technology (South Korea)
Chang Wan Son, Korea Institute of Science and Technology (South Korea)
Seong Hae Ok, Korea Institute of Science and Technology (South Korea)
Young Tae Byun, Korea Institute of Science and Technology (South Korea)
Young Min Jhon, Korea Institute of Science and Technology (South Korea)
Seok Lee, Korea Institute of Science and Technology (South Korea)
Deok Ha Woo, Korea Institute of Science and Technology (South Korea)
Sun Ho Kim, Korea Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 5628:
Semiconductor Lasers and Applications II
Jian-quan Yao; Yung Jui Chen; Seok Lee, Editor(s)

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