Broadband optical devices using QDs array waveguides
| Project/Area Number |
23560412
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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 | Sophia University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 量子ドット / 広帯域光通信 / 光デバイス / 有機金属気相成長 / アレイ導波路 |
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| Research Abstract |
We have studied broadband optical devices using array waveguide structure of QDs core by selective MOVPE growth. To obtain the broadband operational wavelength range, bandgap energy of each array waveguide and each layer of multi-stacked structure were designed by using double-capping procedure and strain control of buffer layer during the growth of QDs structure. We have fabricated four types 3 layer QDs array waveguide LED, and compared the electro-luminescence spectrum of these devices. To obtain the broadband spectrum, it is necessary to control the peak wavelength shift and the comparable output power of 3 layers. As a result, we have obtained more than 500nm FWHM and flat-topped spectrum of QDs LED.
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Report
(4 results)
Research Products
(83 results)
