| Presentation | 2017-08-31 Measurement of Complex Amplitudes of Optical Signal Patterns in the Frequency Domain Naoki Urakawa, Koji Igarashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a scheme for measuring complex amplitudes of optical signal patterns in the frequency domain. In the coherent detection, the divided spectral components with the different frequencies are sequentially measured by adjusting the frequency of local oscillator. After that, the measured band-divided components are synthesized in the digital domain. Since the signal spectrum is divided into the multiple band-divided components with narrower bandwidth than the signal bandwidth, it is possible to use low-speed photodiode and analog-to-digital converter. By Fourier transformation of the synthesized spectrum, the temporal waveform and constellation can be regenerated. In order to synchronize band-divided components, it is required to compensate for fluctuation of phase, delay, and frequency between band-divided components. In this paper, we show a scheme for compensating for the fluctuation by digital signal processing. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical signal measurement / Coherent detection / Signal processing |
| Paper # | OCS2017-23 |
| Date of Issue | 2017-08-24 (OCS) |
| Conference Information | |
| Committee | OFT / OCS / LSJ |
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| Conference Date | 2017/8/31(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masayuki Shigematsu(Sumitomo Electric Industries) / Itsuro Morita(KDDI Research) |
| Vice Chair | |
| Secretary | (Furukawa Electric Industries) / (NTT) / (Sumitomo Electric Industries) |
| Assistant | Ikutaro Ogushi(NTT) / Katsuki Suematsu(Furukawa Electric Industries) |
| Paper Information | |
| Registration To | Technical Committee on Optical Fiber Technology / Technical Committee on Optical Communication Systems / The Laser Society of Japan |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of Complex Amplitudes of Optical Signal Patterns in the Frequency Domain |
| Sub Title (in English) | |
| Keyword(1) | Optical signal measurement |
| Keyword(2) | Coherent detection |
| Keyword(3) | Signal processing |
| 1st Author's Name | Naoki Urakawa |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Koji Igarashi |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2017-08-31 |
| Paper # | OCS2017-23 |
| Volume (vol) | vol.117 |
| Number (no) | OCS-196 |
| Page | pp.pp.1-6(OCS), |
| #Pages | 6 |
| Date of Issue | 2017-08-24 (OCS) |