Lightweight and miniaturized quantum tracker receiving telescope

Table 1. Optical design result of lightweight and miniaturized quantum tracker receiving telescope
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Table 1. Optical design result of lightweight and miniaturized quantum tracker receiving telescope
Index Value
Band range/nm
850@Quantum reception
532@Beacon reception
FOV/（°）
0.03@Quantum reception
0.3@Beacon reception
f/mm 1 400
F# 5

Table 2. Static and dynamics analysis results of receiving telescope
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Table 2. Static and dynamics analysis results of receiving telescope
Mirror Surface figure（RMS）/nm Angular displacement/（″）
Temperature
deformation/nm
X Y Z X Y Z
Primary 8.521 8.521 2.578 0.325 0.325 0.139 9.870
Secondary 1.747 1.747 0.938 1.723 1.723 0.001 11.771

Table 3. Optical transfer function of beacon receiving channel from -40 ℃ to +60 ℃
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Table 3. Optical transfer function of beacon receiving channel from -40 ℃ to +60 ℃
Temperature/℃ OTF（@100 pL/mm）
-40 0.449
-20 0.469
0 0.481
20 0.481
40 0.477
60 0.461

Table 5. Wavefront aberration results of telescope（RMS）
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Table 5. Wavefront aberration results of telescope（RMS）
FOV Wavefront aberration
Central λ/14.7
Left λ/13.7
Right λ/13.5
Upper λ/12.7
Middle and bottom λ/13.7

Table 6. Polarization contrast test results of telescope
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Table 6. Polarization contrast test results of telescope
Measure point H V + -
1 321 393 684 448
2 654 1069 595 578
3 487 506 354 411
4 348 363 363 340
5 330 398 349 384
398 370 471 294
Average 423 516 469 409

Table 7. Polarization efficiency test results of telescope
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Table 7. Polarization efficiency test results of telescope
H/μW V/μW +/μW -/μW Incident power/μW
Result
/%
468 90.13 167.5 485.6 1 650 73.40
481 93.90 165.7 486.2 1 650 74.35
477 91.00 171.4 482.8 1 650 74.07

Table 44. Spot size of quantum receiving channel from -40 ℃ to +60 ℃
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Table 44. Spot size of quantum receiving channel from -40 ℃ to +60 ℃
Temperature/℃ Spot size/μm
Diameter（RMS） Diameter（100%）
-40 2.728 5.845
-20 1.948 4.667
0 1.222 3.495
20 0.784 2.331
40 1.059 1.614
60 1.711 2.325

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Jingxu SUN, Qiang FEI, Feng ZHOU, Taixi CHEN, Hongbo XIE, Fang WANG, Xiaodong SUI. Lightweight and miniaturized quantum tracker receiving telescope[J]. Optics and Precision Engineering, 2023, 31(23): 3426

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