Weak light coherent receiver module
We have developed a weak light coherent detection module for weak light coherent detection applications. The module integrates high-speed low-noise analog light
Electrically balanced detectors and preformed small-signal fiber amplifiers. The production process strictly controls the splitting ratio and length of the coupler, so as to further
Improve the common mode rejection ratio. The pre-amplifier fiber amplifier adopts a special amplification structure, which is used to amplify weak backscattered light, and has the characteristics of low ASE and small NF.
point, can improve the optical signal-to-noise ratio. This module is suitable for optical fiber sensing, laser wind radar and other fields.
