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.
The module is internally integrated with a DVS optical path for distributed fiber vibration and a data acquisition card with Gigabit Ethernet interface output, which only needs to be paired with a PC to form a DVS system.
Raman amplifier modules can be used in distributed fiber optic vibration systems, capable of increasing fiber optic sensing distances up to 40km or more.