The high-performance chirped DAS all-in-one adopts the chirped pulse demodulation scheme to realize and do the coherent fading suppression, which greatly improves the spatial resolution (2m), more sensitive, and higher signal-to-noise ratio.
The center wavelength 1550nm ultra-narrow line width single frequency laser is a combination of silicon photonic chip technology, ECL laser technology and advanced packaging technology into a high-performance semiconductor laser products.
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
Coherent Detection Module for Distributed Fiber Optic Vibration/Sound Detection (DVS/DAS) and Wind Radar.It is characterized by high signal-to-noise ratio, high reliability and easy integration.