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Duo-lateral Position Sensing Detectors

Product information "Duo-lateral Position Sensing Detectors"

OSI Optoelectronics’ super linear duo-lateral position sensing detectors (PSDs) feature state of the art duo-lateral technology to provide a continuous analog output proportional to the displacement of the centroid of a light spot from the center, on the active area.

As continuous position sensors, these detectors are unparalleled, offering position accuracies of 99% over 64% of the sensing area. These accuracies are achieved by duo-lateral technology, manufacturing the detectors with two separate resistive layers, one located on the top and the other at the bottom of the chip. One- or two-dimensional position measurements can be obtained using these sensors.

A reverse bias should be applied to these detectors to achieve optimum current linearity at high light levels. The maximum recommended power density incident on the duo-lateral PSDs is 1 mW/cm2. For optimum performance, the incident beam should be perpendicular to the active area, with a spot diameter of less than 1 mm.

Key Features:

  • Duo Lateral Structure
  • One-dimensional (SL Variants) and Two-dimensional (DL, DLS Variants) Versions
  • High Speed Response
  • Super Linear
  • Ultra High Position Accuracy: Up to 99%
  • Low Capacitance
  • Low Dark Current
  • Wide Dynamic Range
  • High Reliability
  • Metal or Ceramic Package


Applications: Pulse Detectors; Optical Communications; Bar Code Readers; Optical Remote Control; Medical Equipment; High-speed Photometry; Beam Alignment; Position Sensing; Angle Measurement; Surface Profiling; Height Measurements; Targeting; Guidance Systems; Motion Analysis

Manufacturer "OSI Optoelectronics"
OSI Optoelectronics is a leading provider of advanced optoelectronics and electronic assemblies. These technical elements are key to enabling critical functions such as analytics and monitoring, test and measurement, communication and tracking, and imaging in a wide variety of industries, including: Aerospace & Defense, Medical & Life Sciences, Automation & Industrial Production and Automotive & Consumer Electronics.
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