2012 Fiscal Year Final Research Report
Research on phase compensation and diagnosis of silica-based planar waveguide circuits
| Project/Area Number |
22560033
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Gunma University |
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Principal Investigator |
TAKADA Kazumasa 群馬大学, 大学院・工学研究科, 教授 (20359590)
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| Project Period (FY) |
2010 – 2012
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| Keywords | フォトニックネットワーク / 光制御 / 光干渉 / 光位相制御 |
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| Research Abstract |
We developed the phase error measurement system where the optical coupling at each channel of an arrayed-waveguide grating could be made automatically. We created a program for revealing the refractive index change over the slab waveguide lens at the output ports by using the phase error distributions of individual channels measured with the system. We were able to reduce the intensity change due to CO2 laser irradiation to 0.3% by expanding the diameter of the CO2 laser light.
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