| Project/Area Number |
24860046
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Kyushu University |
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Principal Investigator |
KATO Kazutoshi 九州大学, システム情報科学研究科(研究院, 教授 (10563827)
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| Project Period (FY) |
2012-08-31 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 波長可変レーザ / 波長変換器 / フィードバック制御 / フィードフォワード制御 / 高速波長変換 / 電流駆動回路 / PID制御 / 特許出願（３件） / 波長検出の実現 / 波長変化のシステム同定 |
|---|
| Research Abstract |
Two key technologies are developed. One is a high-speed laser current drive circuit which has a very short rise-time of 5 ns. The other is a laser current control algorithm consisting of the feedback control with an appropriately deduced control parameter and the feedforward control, which realizes wavelength stability within +/- 1GHz. With these two technologies, the wavelength of the laser can be stabilized within 20 ns. Moreover, the wavelength converter made of the laser has a stable operation within 50 ns at a wavelength range between 1540 nm and 1560 nm.
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