2011 Fiscal Year Final Research Report
Improvement of the performance of an eye-safe direct detection Doppler lidar
| Project/Area Number |
22760302
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Measurement engineering
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
SHIBATA Yasukuni 首都大学東京, システムデザイン研究科, 助教 (10305419)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 計測機器 |
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| Research Abstract |
The performance of the new direct detection Doppler lidar using narrow band interference filters for measuring wind speed distribution was evaluated. A light source is an eye-safe 1. 5-micrometer laser. Total efficiency improved 50% as compared with the conventional FBG method. Since steep edge was obtained with three interference filters, the maximum transmittance was 30%. Improvement in efficiency is expected by using one low loss interference filter.
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