Fig. 1. System architecture of low noise space gravitational wave detector

Fig. 2. Circuit diagram of the low noise photoelectric detection

Fig. 3. Scheme for low noise photodetector at ultra-low frequency band

Fig. 4. Intensity noise spectrum analysis diagram of high precision multimeter

Fig. 5. Noise characterization of output voltages with different reference chips

Fig. 6. Noise characterization of output voltages with different reference chips which pass AD8671

Fig. 7. Noise power spectrum of photodiode and transimpedance chip

Fig. 8. The electronic noise of the detector