Demonstration of a Directed Optical Comparator Based on Two Cascaded Microring Resonators

Author

Lin Yang ; Chunming Guo ; Weiwei Zhu ; Lei Zhang ; Changzheng Sun

Author_Institution

State Key Lab. on Integrated Optoelectron., Inst. of Semicond., Beijing, China

Volume

27

Issue

8

fYear

2015

fDate

April15, 15 2015

Firstpage

809

Lastpage

812

Abstract

We propose a directed optical comparator, which is composed of two microring resonators (MRRs) and a $2 \\times 1$ optical combiner. The two MRRs are modulated by two electrical signals, which represent the two binary numbers to be compared. Three optical signals are output by the device, which represent the comparison results. As a proof of concept, a directed optical comparator based on thermo-optic effect is fabricated and the device can perform the comparison function of two binary numbers at the speed of 10 kb/s.

Keywords

integrated optics; micro-optics; optical fabrication; optical logic; optical resonators; thermo-optical effects; MRR; binary numbers; bit rate 10 kbit/s; cascaded microring resonators; directed optical comparator; electrical signals; optical combiner; optical signals; thermo-optic effect; Optical coupling; Optical device fabrication; Optical reflection; Optical resonators; Optical switches; Optical waveguides; Integrated optics; Logic functions; Optical computing; logic functions; optical computing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2390618

Filename

7015553