| Presentation | 2018-10-19 Channel Capacity in Quantum-Noise-Limited Optical Communication Systems Kazuro Kikuchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we analyze the bit-error rate (BER) and mutual information characteristics of intensity modulation/direct detection systems and coherent optical communication systems, which are operating in the quantum-noise-limited state. In such systems, the BER and mutual information for various modulation formats can be evaluated as a function of the average number of photons. The channel capacity, which is also called the Shannon limit, is defined as the upper limit of the mutual information; we discuss how the above-mentioned mutual information can approach the channel capacity. These analyses on the BER and mutual information give us the design guideline for the system which realizes larger transmission capacity using fewer photon numbers; hence, they may be important in unrepeated optical transmission systems such as space optical communication systems. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical communications / Channel capacity / Mutual information / Direct-detection-based optical receivers / Coherent optical receivers |
| Paper # | OCS2018-47,OPE2018-83,LQE2018-72 |
| Date of Issue | 2018-10-11 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | OPE / LQE / OCS |
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| Conference Date | 2018/10/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kouki Sato(Furukawa Electric Industries) / Kiichi Hamamoto(Kyusyu Univ.) / Itsuro Morita(KDDI Research) |
| Vice Chair | Hiroshi Takahashi(Sophia Univ.) / Hiroshi Aruga(Mitsubishi Electric) |
| Secretary | Hiroshi Takahashi(Univ. of Tokyo) / Hiroshi Aruga(NICT) / (SEI) |
| Assistant | Yuya Shoji(Tokyo Inst. of Tech.) / Kazunori Seno(NTT) / Masaya Nagai(Osaka Univ.) |
| 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) | Channel Capacity in Quantum-Noise-Limited Optical Communication Systems |
| Sub Title (in English) | |
| Keyword(1) | Optical communications |
| Keyword(2) | Channel capacity |
| Keyword(3) | Mutual information |
| Keyword(4) | Direct-detection-based optical receivers |
| Keyword(5) | Coherent optical receivers |
| 1st Author's Name | Kazuro Kikuchi |
| 1st Author's Affiliation | National Institution for Academic Degrees and Quality Enhancement of Higher Education(NIAD-QE) |
| Date | 2018-10-19 |
| Paper # | OCS2018-47,OPE2018-83,LQE2018-72 |
| Volume (vol) | vol.118 |
| Number (no) | OCS-251,OPE-252,LQE-253 |
| Page | pp.pp.105-110(OCS), pp.105-110(OPE), pp.105-110(LQE), |
| #Pages | 6 |
| Date of Issue | 2018-10-11 (OCS, OPE, LQE) |