Optical Comparator for 4-Bit and 6-Bit QPSK-Modulated Signals by Using Optical Delayed Interferometer
In this paper, a novel optical comparison operation for phase-shift keying (PSK) modulated signal has been proposed by using optical delayed interferometer to realize an advanced functional component for future optical network. The feasibility of the optical comparators designed for 4-bit and 6-bit...
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8332480/ |
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| author | Yohei AIKAWA |
| author_facet | Yohei AIKAWA |
| author_sort | Yohei AIKAWA |
| collection | DOAJ |
| description | In this paper, a novel optical comparison operation for phase-shift keying (PSK) modulated signal has been proposed by using optical delayed interferometer to realize an advanced functional component for future optical network. The feasibility of the optical comparators designed for 4-bit and 6-bit codewords was experimentally demonstrated. It has been shown that the constellations obtained from each comparator are located in conformity with a <inline-formula> <tex-math notation="LaTeX">$Hamming$</tex-math></inline-formula> distance between a comparator code and a given codeword, which is comprised of a successive two and three QPSK-modulated RZ symbols at 10.72 Gbaud/s. It was concluded that the proposed scheme offers a comparison operation for 4-bit and 6-bit codewords at 10 Gbaud/s. |
| format | Article |
| id | doaj-art-66ee94e24bb849d6bd12ced986eedeb8 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-66ee94e24bb849d6bd12ced986eedeb82025-08-20T03:30:57ZengIEEEIEEE Photonics Journal1943-06552018-01-0110211110.1109/JPHOT.2018.28223168332480Optical Comparator for 4-Bit and 6-Bit QPSK-Modulated Signals by Using Optical Delayed InterferometerYohei AIKAWA0https://orcid.org/0000-0003-1123-5780Department of Information and Communication Systems Engineering, National Institute of Technology, Okinawa College, Okinawa, JapanIn this paper, a novel optical comparison operation for phase-shift keying (PSK) modulated signal has been proposed by using optical delayed interferometer to realize an advanced functional component for future optical network. The feasibility of the optical comparators designed for 4-bit and 6-bit codewords was experimentally demonstrated. It has been shown that the constellations obtained from each comparator are located in conformity with a <inline-formula> <tex-math notation="LaTeX">$Hamming$</tex-math></inline-formula> distance between a comparator code and a given codeword, which is comprised of a successive two and three QPSK-modulated RZ symbols at 10.72 Gbaud/s. It was concluded that the proposed scheme offers a comparison operation for 4-bit and 6-bit codewords at 10 Gbaud/s.https://ieeexplore.ieee.org/document/8332480/Optical comparatoroptical signal processingoptical delayed interferometer |
| spellingShingle | Yohei AIKAWA Optical Comparator for 4-Bit and 6-Bit QPSK-Modulated Signals by Using Optical Delayed Interferometer IEEE Photonics Journal Optical comparator optical signal processing optical delayed interferometer |
| title | Optical Comparator for 4-Bit and 6-Bit QPSK-Modulated Signals by Using Optical Delayed Interferometer |
| title_full | Optical Comparator for 4-Bit and 6-Bit QPSK-Modulated Signals by Using Optical Delayed Interferometer |
| title_fullStr | Optical Comparator for 4-Bit and 6-Bit QPSK-Modulated Signals by Using Optical Delayed Interferometer |
| title_full_unstemmed | Optical Comparator for 4-Bit and 6-Bit QPSK-Modulated Signals by Using Optical Delayed Interferometer |
| title_short | Optical Comparator for 4-Bit and 6-Bit QPSK-Modulated Signals by Using Optical Delayed Interferometer |
| title_sort | optical comparator for 4 bit and 6 bit qpsk modulated signals by using optical delayed interferometer |
| topic | Optical comparator optical signal processing optical delayed interferometer |
| url | https://ieeexplore.ieee.org/document/8332480/ |
| work_keys_str_mv | AT yoheiaikawa opticalcomparatorfor4bitand6bitqpskmodulatedsignalsbyusingopticaldelayedinterferometer |