| Presentation | 2007-08-23 Amplitude and phase statistics of optical DPSK signal measured by 1-bit delayed dual-channel coherent sampling technique Keiji OKAMOTO, Fumihiko ITO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As the optical phase-shift keying is being introduced in high-speed optical transmission system, threre is growing importance of the diagnostic technique. In this paper, we observe the amplitude and phase statistics of optical DPSK signal using a newly proposed 1-bit delayed dual-channel coherent sampling technique and report on the experimental results. The constellation diagrams measured by this method reflect the amplitudes demodulated with a 1-bit delayed interferometer. The waveform degradation caused by the coherency of the light source and the pattern effect of the phase modulator is successfully observed in the experiment. Also discussed is the excess noise of the diagnosis system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 1-bit delayed dual-channel coherent sampling technique / Optical DPSK signal / Constellation diagram |
| Paper # | OFT2007-14 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2007/8/16(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 Fiber Technology (OFT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Amplitude and phase statistics of optical DPSK signal measured by 1-bit delayed dual-channel coherent sampling technique |
| Sub Title (in English) | |
| Keyword(1) | 1-bit delayed dual-channel coherent sampling technique |
| Keyword(2) | Optical DPSK signal |
| Keyword(3) | Constellation diagram |
| 1st Author's Name | Keiji OKAMOTO |
| 1st Author's Affiliation | NTT Access Network Service Systems Labs.() |
| 2nd Author's Name | Fumihiko ITO |
| 2nd Author's Affiliation | NTT Access Network Service Systems Labs. |
| Date | 2007-08-23 |
| Paper # | OFT2007-14 |
| Volume (vol) | vol.107 |
| Number (no) | 191 |
| Page | pp.pp.- |
| #Pages | 6 |
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