BPD-200

BPD-200 is a balanced photo detector that outputs the difference of two detector signals. This can be used for reduction of common mode noise due to the laser power fluctuation. In heterodyne detection as in the most of OCT applications, it benefits 3dB sensitivity advantage when detecting the signal inverted in phase in between two input signals. Furthermore, special design significantly reduced the problem of the undesired image artifact which was a major problem in the other balanced detectors. BPD-200 is the best detector ever made specifically for SS-OCT applications.

Features
・Wide dynamic range(DC to 80MHz)
・High reliability and high gain, high linearity
・Flat balanced level
・Specially designed for artifact-reduction

Applications
・Swept Source – OCT
・Heterodyne measurement
・OFDR (Optical Frequency Domain Reflectometry)