Investigation of novel methods of controlling output power with stable wavelength operation and modulation bandwidth enhancement by long-wavelength transistor lasers
| Project/Area Number |
17H03247
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
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| Keywords | トランジスタレーザ / 半導体レーザ / InP / 光デバイス / 光回路 / 半導体 / フォトニックネットワーク |
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| Outline of Final Research Achievements |
In order to meet the demand for a direct modulation laser for short-to-medium distance optical communication, we aimed to establish a method to control the optical output, oscillation spectrum, and modulation band of a 1.3 micrometer-band transistor laser.
First of all, we have realized a theoretical calculation that agrees with complicated characteristic measurement data. By utilizing this theoretical calculation, the design guideline of the transistor laser was clarified .
Next, in the actual fabrication, we proposed a new electrode structure with the goal of improving the electric band and heat dissipation characteristics, and realized a device that operates at 95 degrees, which is the highest oscillation temperature in the world, with the transistor laser. We also succeeded in obtaining stable small signal characteristics.
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| Academic Significance and Societal Importance of the Research Achievements |
インターネットを中心とする光ネットワークの高速化、かつ低コスト化の要求に見合う半導体レーザを実現するための重要なステップになるとともに、本トランジスタレーザの理論解析は、将来の他の半導体レーザ理論検討にも適応できる学術的意義があるといえる。
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Report
(4 results)
Research Products
(86 results)
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[Journal Article] Optically-driven Terahertz Wave ModulaT.sing Ring-shaped Microstripline with GaInAs Photoconductive Mesa Structure2017
Author(s)
S. Yamasaki, A. Yasui, T. Amemiya, K. Furusawa, S. Hara, I. Watanabe, A. Kanno, N. Sekine, Z. Gu, N. Nishiyama, A. Kasamatsu, S. Arai
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Journal Title
IEEE Journal of Selected Topics in Quantum Electronics
Volume: 23
Issue: 4
Pages: 3400408-3400408
DOI
Related Report
Peer Reviewed
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