Position-Sensing Photodiodes
Position Sensing Photodiodes for Accurate Beam Alignment
Position-sensing photodiodes accurately measure the location and movement of light spots by converting spatial variations in photocurrent into precise positional data. These detectors are ideal for alignment, tracking, and feedback control in optical systems where spatial accuracy is critical.
Multi-Cell Photodiodes
Multi-cell photodiodes contain multiple segmented light-sensitive regions within a single sensor, enabling precise detection of optical position and movement along one or more axes. By comparing signals from each segment, they provide high-resolution beam alignment and tracking for demanding industrial, scientific, and instrumentation applications.
Tetralateral Photodiodes
Tetralateral photodiodes offer continuous X–Y position sensing by analyzing photocurrents from four interconnected regions. Their design delivers fast, high-resolution feedback for precision alignment, tracking, and motion-control applications.


