Study on beam shaping of laser diodes using Lloyd's mirror interference
| Project/Area Number |
22560043
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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 | Okayama Prefectural University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | 半導体レーザ / ビーム整形 / ロイドのミラー干渉 / ビーム品質 / 遠視野像 / 光結合系 / ビームアスペクト比 |
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| Research Abstract |
We applied our beam shaping method to three kinds of laser diodes which have different lasing wavelength and different beam divergence angle. Elliptical beams emitted from the laser diodes were successfully transformed to nearly circular beams using a single substrate mirror. The dependence of the beam shape on the lasing characteristics was investigated numerically. Moreover beam quality factor of the tailored beam was observed and found to be as good as 1.24. We proposed an optical coupling system between a laser diode and an optical fiber based on the beam shaping method and estimated the coupling efficiency.
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Report
(4 results)
Research Products
(19 results)
