Research on Long-Wave Infrared and Laser Common-Aperture Dual-Mode Guided Optical System

Jie Chen; Tuanjie Xia; Tong Yang; Lei Yang; Hongbo Xie

doi:10.3788/AOS221609

Journals >Acta Optica Sinica >Volume 43 >Issue 12 >Page 1222001 > Article

Acta Optica Sinica
Vol. 43, Issue 12, 1222001 (2023)

Research on Long-Wave Infrared and Laser Common-Aperture Dual-Mode Guided Optical System

Jie Chen¹, Tuanjie Xia², Tong Yang¹, Lei Yang^1、*, and Hongbo Xie¹

Author Affiliations

¹Key Laboratory of Opto-Electronic Information Technology, Ministry of Education, School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China

²Advanced Photoelectric Detection Research and Development Center, Shanghai Aerospace Control Technology Institute, Shanghai 201100, China

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DOI: 10.3788/AOS221609 Cite this Article Set citation alerts

Jie Chen, Tuanjie Xia, Tong Yang, Lei Yang, Hongbo Xie. Research on Long-Wave Infrared and Laser Common-Aperture Dual-Mode Guided Optical System[J]. Acta Optica Sinica, 2023, 43(12): 1222001 Copy Citation Text

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Fig. 1. Schematic diagram of optical structure

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Fig. 2. R-C structure ray trace diagram

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Fig. 3. Geometric representation of optical system OTF with annular obscuration. (a) Annular pupil; (b) two staggered annular exit pupils

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$Diffraction limit of modulation transfer function at different obscuration ratios$

Fig. 4. Diffraction limit of modulation transfer function at different obscuration ratios

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Fig. 5. Long-wave infrared optical initial structure

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Fig. 6. Structure diagram of long-wave infrared optical module. (a) Two-dimensional structure diagram; (b) three-dimensional structure diagram

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Fig. 7. MTF curves for a long-wave infrared optical module

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Fig. 8. Image quality evaluation of long-wave infrared optical module. (a) Distortion diagram; (b) standard spot diagram

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Fig. 9. 1.064 μm laser receiver module structure diagram

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Fig. 10. Image plane analysis of 1.064 μm laser receiver module. (a) Fraction of enclosed energy; (b) footprint diagram

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Fig. 11. MTF curves of long-wave infrared optical modules at different temperatures. (a) -40 ℃; (b) 0 ℃; (c) 20 ℃; (d) 60 ℃

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Fig. 12. Standard spot diagram of long-wave infrared optical module at different temperatures. (a) -40 ℃; (b) 0 ℃; (c) 20 ℃; (d) 60 ℃

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Parameter	Long-wave infrared module	1.064 μm laser receiver module
Wavelength	8-12 μm	1.064 μm
Detector	Pixel size 12 μm	Image diameter 0.5 mm
FOV	4°×3°	±0.3°
Optical total length	≤100 mm	—

Table 1. Specifications of long-wave infrared optical module and 1.064 μm laser receiving optical module

Parameter

e_{1}^{2}

e_{2}^{2}

r_{1}

/mm

$r_{2}$ /

d /mm

Specification

1.214286

14.714286

-66

-39.6

-23.1

Table 2. Initial structural parameters of long-wave infrared optical module

Classification	Tolerance type	Tolerance value
Surface tolerance	Thickness /mm	±0.02
	Decenter /mm	±0.02
	Tilt /（°）	±0.033
	Radius /fringe	2
Aspherical surface tolerance	PV /μm	0.5
Element tolerance	Decenter /mm	±0.02
Element tolerance	Tilt /（°）	±0.033

Table 3. Tolerance analysis of long-wave infrared system

Jie Chen, Tuanjie Xia, Tong Yang, Lei Yang, Hongbo Xie. Research on Long-Wave Infrared and Laser Common-Aperture Dual-Mode Guided Optical System[J]. Acta Optica Sinica, 2023, 43(12): 1222001

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