Zhao-wen CAO, Zi-wei XU, Kuai-sheng ZOU. Study on Beam Width Narrowing of Blue Structured Light in Long Distance[J]. Acta Photonica Sinica, 2020, 49(8): 0814002
- Acta Photonica Sinica
- Vol. 49, Issue 8, 0814002 (2020)
Fig. 1. The light enters the gradient-index lens
Fig. 2. Index distribution
Fig. 3. Parameters of gradient-index lens
Fig. 4. Angle selectivity of the VBG
Fig. 5. Beam generation scheme and experimental measurement for linear structure light
Fig. 6. Beam shaping by cylindrical lens
Fig. 7. Image of laser diode beam emitted from GRIN lens
Fig. 8. Measurement of beam width by second intensity moments method (precision of unit is 0.1 mm)
Fig. 9. Beam width of the system at different positions
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Table 1. Gradient-index lens with different parameters in simulation
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