| Presentation | 2011-07-12 Rectangular QPSK for Generation of Optical 8PSK Guo-Wei LU, Takahide SAKAMOTO, Tetsuya KAWANISHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Different from the symmetric square-shape constellation generated by a conventional QPSK (quadrature phase-shift keying) transmitter, a QPSK with a rectangular-shape constellation (i.e. rectangular QPSK) is expected to be obtained when driving an in-phase/quadrature (IQ) modulator in an unbalanced manner. It could be applied to generate multilevel modulation format, like eight-ary phase-shift keying (8PSK). In this paper, we propose and experimentally demonstrate an optical 8PSK transmitter using two tandem IQ modulators. A 30-Gb/s 8PSK is successfully generated through cascading a rectangular QPSK and a square QPSK. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Coherent communications / eight-ary phase-shift keying (8PSK) / quadrature phase-shift keying (QPSK) / in-phase/quadrature (IQ) modulator / multi-level format |
| Paper # | OCS2011-38 |
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| Conference Information | |
| Committee | OCS |
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| Conference Date | 2011/7/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Communication Systems (OCS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Rectangular QPSK for Generation of Optical 8PSK |
| Sub Title (in English) | |
| Keyword(1) | Coherent communications |
| Keyword(2) | eight-ary phase-shift keying (8PSK) |
| Keyword(3) | quadrature phase-shift keying (QPSK) |
| Keyword(4) | in-phase/quadrature (IQ) modulator |
| Keyword(5) | multi-level format |
| 1st Author's Name | Guo-Wei LU |
| 1st Author's Affiliation | National Institute of Information and Technology(NICT)() |
| 2nd Author's Name | Takahide SAKAMOTO |
| 2nd Author's Affiliation | National Institute of Information and Technology(NICT) |
| 3rd Author's Name | Tetsuya KAWANISHI |
| 3rd Author's Affiliation | National Institute of Information and Technology(NICT) |
| Date | 2011-07-12 |
| Paper # | OCS2011-38 |
| Volume (vol) | vol.111 |
| Number (no) | 122 |
| Page | pp.pp.- |
| #Pages | 3 |
| Date of Issue | |