| Presentation | 2015-10-30 PAPR Reduction of Optical SSB Modulated Signal using LN Modulator Nonlinearity-based Peak Folding K. I. Amila Sampath, Katsumi Takano, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Optical single sideband (SSB) modulation employs one-half of the spectrum bandwidth compared to that of intensity modulation. Due to the narrow bandwidth, optical SSB signal is tolerant to group velocity dispersion (GVD) and GVD of optical SSB signal can be compensated in electrical domain. However peak-to-average power ratio (PAPR) of carrier suppressed optical SSB (SSB-SC) signal becomes high because of the Hilbert-transformed signal component. High PAPR of optical SSB-SC signal causes nonlinear phase shifts by self-phase modulation (SPM) during the transmission and results a degraded signal at the receiver. We propose a simple technique to reduce PAPR of optical SSB-SC signal using peak folding. Nonlinear modulation curve of LN modulator was used to fold the peaks of Hilbert-transformed signal. PAPR of optical SSB-SC signal was reduced from 4.26 to 1.52 by using peak folding. As a result of PAPR reduction, SPM threshold of the studied system was improved by 3 dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical SSB / PAPR / Peak Folding / SSR |
| Paper # | OCS2015-71,OPE2015-121,LQE2015-90 |
| Date of Issue | 2015-10-22 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | OPE / LQE / OCS |
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| Conference Date | 2015/10/29(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Beppu International Convention Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroyuki Uenohara(Tokyo Inst. of Tech.) / Hajime Shoji(Sumitomo Electric Industries) / Kiyoshi Fukuchi(NEC) |
| Vice Chair | Kensuke Ogawa(Fujikura) / Susumu Noda(Kyoto Univ.) / Akira Hirano(NTT) |
| Secretary | Kensuke Ogawa(Fujitsu Labs.) / Susumu Noda(NTT) / Akira Hirano(NICT) |
| Assistant | Takaaki Ishigure(Keio Univ.) / Eiji Yagyu(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Optoelectronics / Technical Committee on Lasers and Quantum Electronics / Technical Committee on Optical Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | PAPR Reduction of Optical SSB Modulated Signal using LN Modulator Nonlinearity-based Peak Folding |
| Sub Title (in English) | |
| Keyword(1) | Optical SSB |
| Keyword(2) | PAPR |
| Keyword(3) | Peak Folding |
| Keyword(4) | SSR |
| 1st Author's Name | K. I. Amila Sampath |
| 1st Author's Affiliation | Yamagata University(Yamagata Univ) |
| 2nd Author's Name | Katsumi Takano |
| 2nd Author's Affiliation | Yamagata University(Yamagata Univ) |
| Date | 2015-10-30 |
| Paper # | OCS2015-71,OPE2015-121,LQE2015-90 |
| Volume (vol) | vol.115 |
| Number (no) | OCS-276,OPE-277,LQE-278 |
| Page | pp.pp.149-153(OCS), pp.149-153(OPE), pp.149-153(LQE), |
| #Pages | 5 |
| Date of Issue | 2015-10-22 (OCS, OPE, LQE) |