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 APD modules are based on low-noise avalanche photodiodes made of InGaAs with a built-in pre-amplifier and high voltage supply.A temperature compensation function allows the APD to be operated at constant gain across a wide operating temperature range.
The laser is customized for distributed fiber optic temperature measurement applications and features high stability, adjustable pulse width and high peak power output at 1550 nm with a minimum pulse width of 5 ns. It supports both ACC and APC mode operation.
The photodiode material is silicon, and the response spectrum is 300-1100nm; UV enhancement at 355nm; with a large target surface of 3000um, it is very suitable for doing low light detection, fluorescence detection and other applications.
YB Photonics VS Thorlabs quick selection table, use this table to quickly find replaceable models. The table lists the correspondence between amplified detectors, APDs, bias detectors, balanced detectors, etc.