Tetra-lateral Position Sensing Detectors
Product information "Tetra-lateral Position Sensing Detectors"
670 nm Band Optimized; Active Area 11.5 to 957 mm2; AA Dimensions 5.3 x 2.2 to 30.94 x 30.94 mm; Rise Time 0.25 to 5.00 µs; Responsivity 0.35, 0.42 A/W; Capacitance 50 to 3,900 pF; Package TO-5, Plastic, Metal Special
OSI Optoelectronics’ super linear tetra-lateral position sensing detectors (PSDs) are manufactured with one single resistive layer for both one- and two-dimensional measurements. They feature a common anode and two cathodes for one-dimensional position sensing or four cathodes for two-dimensional position sensing.
These detectors are best when used in applications that require measurement over a wide spatial range. They offer high response uniformity, low dark current and good position linearity over 64% of the sensing area.
A reverse bias should be applied to these detectors to achieve optimum current linearity when large light signals are present. This series’ circuit represents a typical set-up for two-dimensional tetra-lateral PSDs.
Note that the maximum recommended incident power density is 10 mW/cm2. Furthermore, typical uniformity of response for a 1 mm diameter spot size is ±5% for SC-25D and SC-50D and ±2% for all other tetra-lateral devices.
Key Features:
- High Speed Response
- Low Capacitance
- Low Dark Current
- Wide Dynamic Range
- High Responsivity
- Single Resistivity Layer
- Very High Resolution
- Spot Size & Shape Independence
Applications: Pulse Detectors; Optical Communications; Bar Code Readers; Optical Remote Control; Medical Equipment; High Speed Photometry; Tool Alignment and Control; Leveling and Angular Measurements; 3-dimensional Vision; Position Measuring