Hui Liu, Hongyao Chen, Xiaolong Si, Liming Zhang. Linear Calibration of Wide Dynamic Range Response of Silicon Detectors Based on Double LEDs Light Source Integrating Sphere[J]. Acta Optica Sinica, 2017, 37(9): 0904001
- Acta Optica Sinica
- Vol. 37, Issue 9, 0904001 (2017)
Fig. 1. Schematic of the Si detectors linearity measurement instrument
Fig. 2. Relationship between detector response current and LED injection current
Fig. 3. Nonlinearity correction factor of Si detector
Fig. 4. Linearity error of Si detector
Fig. 5. Relative spectral radiance of two LEDs
Fig. 6. Relative spectral radiance of the LED with different injection currents
Fig. 7. Schematic of the measurement of spectral drift
Fig. 8. Timing diagram of LEDs switch and data collection
Fig. 9. Uncorrected and corrected nonlinearity factors
Fig. 10. Relative uncertainty of nonlinearity factor
Fig. 11. Relative uncertainty of nonlinearity correct factor
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Table 1. Measurement data of spectral drift
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Table 2. Combined uncertainty of measurement system
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