Study of high-accuracy wavelength semiconductor laser source for flexible-grid network

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420308
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Kyushu University
• Principal Investigator: Kato Kazutoshi 九州大学, システム情報科学研究院, 教授 (10563827)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 波長可変レーザ / 波長制御 / フィードフォワード制御 / フレキシブルグリッド / ビート信号

Outline of Final Research Achievements

To realize a high-accuracy wavelength laser for the Flexible-Grid Network, we proposed a novel method of detecting wavelength deviation from reference wavelengths by using a microwave band-pass filter and constructed the control system. The experimental results showed a wavelength accuracy within 0.01 GHz which meets a requirement at the optical communication system. For a future optical packet network, we also studied a fast wavelength switching at a laser. Our devised current controller based on the transfer function of the laser reduced the wavelength switching time down to 60 ns. As for the outputs, the number of the published article has been four as well as twenty-nine presentations.

Free Research Field

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