Small-sized light modulator with optical frequency-chirp of which amount can be preset and its applications
| Project/Area Number |
26420313
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | University of Hyogo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
河合 正 兵庫県立大学, 工学研究科, 准教授 (30275309)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 電子デバイス・機器 / 電気光学変調器 / 波長チャープ / 光周波数コム / 歪み補償 / 電気光学光変調器 / ニオブ酸リチウム / ラットレース回路 / 並列リング型 / プリチャープ変調 |
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| Outline of Final Research Achievements |
An electro-optic light intensity modulator inducing optical frequency-chirp of which amount can be preset was proposed and realized. Its applications were also considered. The rat-race (RR) circuit, which operates as a 180-degree hybrid, with an asymmetric power split ratio was integrated with the electro-optic modulator on the same substrate. Thereby, the frequency-chirp modulation was realized by the modulator structure of a small-sized and single-chip configuration. As applications of this modulator, generation of the optical frequency comb consisting of seven spectrum components and the pre-chirp modulation for avoiding the optical fiber dispersion in optical fiber transmissions were successfully realized by the experiments. Moreover, a new optical compensation method of the nonlinear distortion in electro-optic modulators using the frequency-chirp modulation was proposed. The distortion suppression performance was confirmed by the calculation.
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Report
(4 results)
Research Products
(54 results)
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[Presentation] 縦列接続型SIW多重電力分配回路の設計2014
Author(s)
高橋 広次, 河合 正, 岸原 充佳, 太田 勲, 榎原 晃
Organizer
電子情報通信学会マイクロ波研究会
Place of Presentation
室蘭工業大（北海道室蘭市）
Year and Date
2014-07-17 – 2014-07-18
Related Report
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