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.
Introduces the configuration of the pulsed laser for DTS temperature sensing, including how to set the ACC and APC modes, the trigger method and the pulse width parameters.