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detectors

Beam-Position Photoreceivers - 55037 Position-Sensitive Detectors

•Exceptional position resolution (<0.25 µm)and accuracy (<±15 µm)•Both analog and 16-bit digital (USB 2.0) outputs •Convenient adjustable gain settings and switchable output normalization

× 4mmto 13 × 13 mm. These new Models 293X position-sensitivedetectors (PSDs) deliver exceptional perfor- mance with a range of convenient features. With <0.25-µm resolution, <±15-µm accuracy,and 16-bit digital output resolution, thesedetectors are ideal for beam position, pointing and power measurements. Unlike our quad- rant-cell photoreceivers, which are ideal for centering applications, these PSDs are well- suited for applications requiring varying beam positions or angles. (See the inset “PSDs vs. Quadrant-Cell Photoreceivers” for more infor- mation.) Three versions with different photode- tector sizes are available for varying beam sizes or beam position deviations from 4 These easy-to-use PSDs include both digitaland analog outputs. The digital outputs use a USB 2.0 interface for easy interfacing with your computer. The analog outputs can bemanually switched between raw X, Y and SUM(i.e. power) or normalized X/SUM, Y/SUM and SUM. To further improve precision, the normal- ized output features a background (ambient light) subtraction function. These PSDs also include adjustable gain settings for use with a wide variety of optical powers.
Models 293X

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