Simple and reconfigurable photonics-based half adder and half subtracter

被引：0

作者：

Chen, Henghao ^{[1
]}

Chen, Hao ^{[1
]}

Li, Aoqi ^{[1
]}

Liu, Mingtong ^{[1
]}

Chan, Erwin H. W. ^{[1
]}

机构：

[1] Charles Darwin Univ, Fac Sci & Technol, Darwin, NT 0909, Australia

来源：

OPTICS COMMUNICATIONS | 2024年 / 555卷

关键词：

Optical signal processing; Optical logical gates; Half-addition; Half-subtraction; Dual-polarisation modulator; PROPOSAL; SOA;

D O I：

10.1016/j.optcom.2023.130206

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A photonics-based digital signal processing structure that has the ability of realising half addition and half subtraction, is presented. It is based on applying the two digital inputs into a dual-polarisation modulator and designing the modulator bias voltages to realise the logical operations. After photodetection, a Sum output and a Carry output for half addition, or a Difference output and a Borrow output for half subtraction, can be generated. Switching between the half addition operation and the half subtraction operation can be achieved by simply changing a digital input amplitude and a modulator bias voltage. The proposed photonics-based digital signal processing structure is theoretically analysed. Using the system parameter setting obtained from the theoretical analysis, half addition and half subtraction operations are experimentally demonstrated.

引用

页数：8

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