Optics and Precision Engineering, Volume. 32, Issue 3, 324(2024)
Multi-wavelength lasers coupling system used in fluorescent microscopy
Figures & Tables(13)
Fig. 5. Decay curves of coupling efficiency with adjustment errors between coupling lens and fiber end face
Table 1. Parameters of SM fiber
View tableView in ArticleTable 1. Parameters of SM fiber
Fiber model PM-S405-XP Operating wavelength 400~680 nm Core NA 0.12 Mode field diameter （3.3±0.5） μm@405 nm
（4.6±0.5） μm@630 nm
Cladding diameter （125.0±1.0） μm Core diameter 3 μm Coating diameter （245±15） μm Core/clad offset ≤0.6 μm Coating concentricity <5.0 μm
Table 2. Calculation result of coupling efficiency
View tableView in ArticleTable 2. Calculation result of coupling efficiency
Wavelength/nm X-axis light intensity
distribution
Y-axis light intensity distribution Within
3.6 μm
Within 4.8 μm Within 3.6 μm Within 4.8 μm 405 69 81 69 81 488 63 75 67 78 561 66 76 69 80 638 60 60 62 74
Table 3. Coupling efficiency test result
View tableView in ArticleTable 3. Coupling efficiency test result
Wavelength/nm Power before coupling/mW Power after coupling/mW Coupling efficiency/% 405 37.8 25.8 68.3 488 38.5 26.6 69.1 561 41.2 29.3 71.1 638 39.4 28.1 71.3
Table 4. Coupling efficiency test
View tableView in ArticleTable 4. Coupling efficiency test
Wavelength/nm Power before coupling/mW Power after coupling/mW Coupling Efficiency/% 405 54.0 35.3 65.4 488 53.3 35.0 65.7 561 53.6 37.2 69.4 638 51.2 34.5 67.4
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Minchao ZHOU, Zhenya WANG, Yi FANG, Gangyin LUO, Zhe ZHANG, Xiaojie SUN. Multi-wavelength lasers coupling system used in fluorescent microscopy[J]. Optics and Precision Engineering, 2024, 32(3): 324
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Received: Sep. 25, 2023
Accepted: --
Published Online: Apr. 2, 2024
The Author Email: WANG Zhenya (wangzy@sibet.ac.cn)
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