| Presentation | 2005-11-25 Study of Super-Wideband FM Technique Using Optical Homodyne-Detection Scheme : System Proposal and Basic Characteristics of New Wideband Modulator Tomoaki OHIRA, Kouichi MASUDA, Masaru FUSE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a new super-wideband FM technique using optical homodyne-detection scheme for analog/digital hybrid multi-channel video distribution on optical access networks. This technique is realized by applying the optical Single Sideband (SSB) modulator and the optical phase modulator. In the current super-wideband FM technique using optical heterodyne-detection scheme, wavelength fluctuations of two laser diodes (LDs) degrade the carrier-to-noise ratio (CNR) of the demodulated signal especially in the lower frequency band. In this paper, we have shown the improvement of the phase noise and the CNR characteristics achieved by the new technique. Furthermore, we have demonstrated the distortion characteristics of the new wideband modulator that depend on the undesired components generated by the optical SSB modulator. By improving the suppression ratios of these undesired components, the distortion characteristics are greatly improved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | FTTH / FM modulation / Single Side Band Modulation / Optical Homodyne Detection / Phase Noise / CNR / Distortion |
| Paper # | OCS2005-82 |
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| Committee | OCS |
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| Conference Date | 2005/11/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Optical Communication Systems (OCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of Super-Wideband FM Technique Using Optical Homodyne-Detection Scheme : System Proposal and Basic Characteristics of New Wideband Modulator |
| Sub Title (in English) | |
| Keyword(1) | FTTH |
| Keyword(2) | FM modulation |
| Keyword(3) | Single Side Band Modulation |
| Keyword(4) | Optical Homodyne Detection |
| Keyword(5) | Phase Noise |
| Keyword(6) | CNR |
| Keyword(7) | Distortion |
| 1st Author's Name | Tomoaki OHIRA |
| 1st Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd() |
| 2nd Author's Name | Kouichi MASUDA |
| 2nd Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd |
| 3rd Author's Name | Masaru FUSE |
| 3rd Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd |
| Date | 2005-11-25 |
| Paper # | OCS2005-82 |
| Volume (vol) | vol.105 |
| Number (no) | 428 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |