Mechanism of multi-wavelength laser detection of micro-camera

Jiahui QU; Haiyang ZHANG; Yu FAN; Lin WANG; Heying WANG; Changming ZHAO

doi:10.5768/JAO202243.0407004

Journal of Applied Optics, Volume. 43, Issue 4, 809(2022)

Mechanism of multi-wavelength laser detection of micro-camera

Jiahui QU1...1,1,1,1,1, Haiyang ZHANG1,1,1,1,1,1,*, Yu FAN1,1,1, Lin WANG1,1,1,1,1,1, Heying WANG1,1,1,1,1,1, and Changming ZHAO1,1,1,1,11 |Show fewer author(s)

Author Affiliations

¹1Key Laboratory of Photoelectronic Imaging Technology and System (Ministry of Education), Beijing Institute of Technology, Beijing 100081, China

¹2School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China

¹3Key Laboratory of Optoelectronic Countermeasure Testing and Evaluation Technology, Luoyang 471003, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(17)

Fig. 1. Laser active detection model of cat-eye target

Download full size

View in Article

Fig. 2. Schematic diagram of depth of field of imaging system

Download full size

View in Article

Fig. 3. Structure diagram of experimental device

Download full size

View in Article

Fig. 4. 532 nm laser echo spot and intensity distribution curve

Download full size

View in Article

Fig. 5. 852 nm laser echo spot and intensity distribution curve

Download full size

View in Article

Fig. 6. 1 064 nm laser echo spot and intensity distribution curve

Download full size

View in Article

Fig. 7. 1 550 nm laser echo spot and intensity distribution curve

Download full size

View in Article

Fig. 8. Relation curves of total irradiation intensity of detection surface and detection distance

Download full size

View in Article

Fig. 9. Relation curves of spot radius and detection distance

Download full size

View in Article

Fig. 10. Experimental diagram of 532 nm laser echo spot

Download full size

View in Article

Fig. 11. Experimental diagram of 852 nm laser echo spot

Download full size

View in Article

Fig. 12. Experimental diagram of 1 064 nm laser echo spot

Download full size

View in Article

Fig. 13. Experimental diagram of 1 550 nm laser echo spot

Download full size

View in Article

Table 1. Specification parameters of industrial camera

View table

View in Article

Table 1. Specification parameters of industrial camera

参数	规格
参数	面阵工业相机	短波红外相机
光谱响应范围/nm	300～1 100	400～1 700
像元数（高×宽）/pixel	2 592×2 048	1 296×1 032
芯片尺寸/mm	16	8
像元尺寸/μm	4.8×4.8	5.0×5.0
帧率/（帧/s）	60	66

Table 2. Description of commonly-used detection laser
View table
View in Article
Table 2. Description of commonly-used detection laser
序号类型波长/nm 发射功率/mW
1 可见光 532 10
2 近红外 852 10
3 近红外 1 064 10
4 短波红外 1 550 10

Table 3. Segmentation slope of relation curves of total irradiation intensity of detection surface and detection distance （×10⁻³ W/mm³）

View table

View in Article

Table 3. Segmentation slope of relation curves of total irradiation intensity of detection surface and detection distance （×10⁻³ W/mm³）

波长/nm	探测距离/m
波长/nm	0.5～1	1～1.5	1.5～2	2～2.5	2.5～3
532	−0.080 8	0.089 2	5.776 6	−5.852	−0.149 2
852	−0.044 2	0.055 8	1.906 6	−1.976 6	−0.069 6
1 064	0.223 4	0.083 8	4.041 2	−4.138 4	−0.151 0
1 550	−0.481 8	0.749 6	10.084 0	−10.162 2	−1.685 0

Table 4. Spot characteristics of different-wavelength lasers at partial detection distances

View table

View in Article

Table 4. Spot characteristics of different-wavelength lasers at partial detection distances

波长/nm	探测距离/m
波长/nm	0.5	1	2	3
532	条纹清晰，中央亮条纹外衍射环密集	衍射环半径减小，回波能量向中心会聚	光斑聚焦程度高，此时猫眼目标回波中心光强为极大值	光斑外扩，衍射特征明显
852	条纹较模糊，光斑级次减少，各级条纹的间距较大	衍射环半径减小，回波能量向中心会聚	光斑聚焦程度较高，此时猫眼目标回波中心光强为极大值	光斑半径增加，探测面接收能量低
1 064	条纹较模糊，光斑级次减少，各级条纹的间距较大	衍射环半径减小，回波能量向中心会聚	光斑聚焦程度较高，此时猫眼目标回波中心光强为极大值	光斑半径增加，探测面接收能量极低
1 550	条纹较清晰，光斑级次减少，各级条纹的间距大	衍射环半径减小，回波能量向中心会聚	光斑聚焦程度高，此时猫眼目标回波中心光强为极大值	光斑外扩明显，探测面接收能量高

Tools

Get Citation

Copy Citation Text

Jiahui QU, Haiyang ZHANG, Yu FAN, Lin WANG, Heying WANG, Changming ZHAO. Mechanism of multi-wavelength laser detection of micro-camera[J]. Journal of Applied Optics, 2022, 43(4): 809

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: LASER TECHNOLOGY

Received: Apr. 15, 2022

Accepted: --

Published Online: Aug. 8, 2022

The Author Email: ZHANG Haiyang (ocean@bit.edu.com)

DOI:10.5768/JAO202243.0407004

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Specification parameters of industrial camera

Table 1. Specification parameters of industrial camera

Table 2. Description of commonly-used detection laser

Table 2. Description of commonly-used detection laser

Table 3. Segmentation slope of relation curves of total irradiation intensity of detection surface and detection distance （×10−3 W/mm3）

Table 3. Segmentation slope of relation curves of total irradiation intensity of detection surface and detection distance （×10−3 W/mm3）

Table 4. Spot characteristics of different-wavelength lasers at partial detection distances

Table 4. Spot characteristics of different-wavelength lasers at partial detection distances

微信扫一扫：分享

Table 3. Segmentation slope of relation curves of total irradiation intensity of detection surface and detection distance （×10⁻³ W/mm³）

Table 3. Segmentation slope of relation curves of total irradiation intensity of detection surface and detection distance （×10⁻³ W/mm³）