The balanced photodetector contains two photodiodes and a low-noise transimpedance amplifier, in which the two photodiodes are matched to each other for excellent common mode rejection ratio
BPD570 Series Photodetectors Based on 2 high-performance APD photodetectors with consistent performance, adjustable M-factor, ultra-high common-mode rejection ratio of 30db and low noise.
This PM fiber acousto-optic demodulator (1064 nm, 200 MHz) is primarily used for seed source selection and frequency downshifting in ultrafast laser systems.