Infrared and Laser Engineering, Volume. 52, Issue 10, 20230109(2023)
Design and implementation of real-time laser power monitoring system in laser ranging
Figures & Tables(10)
Fig. 2. Optical path schematic for laser ranging transmit/receive in the 53 cm binocular telescope
Fig. 5. Relationship curve of reflected light power and transmitted light power
Table 1. Parameters of the lasers
View tableView in ArticleTable 1. Parameters of the lasers
Parameter Value Wavelength/nm 532 Repeat frequency/Hz 1000 Pulse width/ps 25 Pulse energy/mJ·pulse–1 0.9 (Before)/ 0.8 (Present) Beam diameter/mm 3 Laser divergence angle/(″) 5
Table 2. Power range at each point in the laser ranging
View tableView in ArticleTable 2. Power range at each point in the laser ranging
Output laser power/mW Reflected laser power/mW Transmitted laser power/mW 800 799.2 0.8 400 399.6 0.4 200 199.8 0.2 100 99.9 0.1 35 34.965 0.035
Table 3. Parameters of laser power meter probe
View tableView in ArticleTable 3. Parameters of laser power meter probe
Parameter Value Probe marking Probe Ⅰ Probe Ⅱ Sensor model Thorlabs-S120C Ophir-10A v1.1 Wavelength range 400-1100 nm 190-2 000 nm Power range 50 nW-50 mW 10 mW-10 W Aperture size ϕ9.5 mm ϕ16 mm Measurement uncertainty ±3% (440-980 nm) - Power accuracy - ±3% Resolution 1 nW - Power noise level - 0.2 mW
Table 4. Part of
F -distribution tableFa value ofP (F ≥Fa ),View tableView in ArticleTable 4. Part of
F -distribution tableFa value ofP (F ≥Fa ),$ {v}_{Q} $ $ {v}_{U} $ 1 2 … 24 $ \infty $ 1 39.86 49.50 … 55.83 63.33 2 8.53 9.00 … 9.45 9.49 … … … … … … 6 3.78 3.46 … 2.82 2.72 … … … … … … 28 2.89 2.50 … 1.66 1.48 … … … … … …
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Fan Wu, Dongsheng Zhai, Zhulian Li, Rufeng Tang, Xiaoyu Pi, Yuqiang Li. Design and implementation of real-time laser power monitoring system in laser ranging[J]. Infrared and Laser Engineering, 2023, 52(10): 20230109
Paper Information
Category: Lasers & Laser optics
Received: Mar. 1, 2023
Accepted: --
Published Online: Nov. 21, 2023
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