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Preamplifiers for PSDs

Amplifiers for PSDs, Differential Diodes, and Quadrant Diodes

Varieties of Preamplifiers for PSDs

There are two varieties of preamplifiers available for position-sensitive detectors (PSDs).

  • SEEPOS: This signal processing system for one and two-dimensional PSDs can measure positions at a resolution of 16 bits and speeds of up to 1 MHz.
  • SPC PSD: In these small complete modules the electronics are either integrated directly on the back side of the PSD housing or are available as a small evaluation board without a mounted PSD.

SEEPOS

With SEEPOS, SiTek offers a signal processing system for one and two-dimensional PSDs. With this system, positions can be measured at a resolution of 16 bits and speeds of up to 1 MHz. This is possible across a large power range – from the nW to the mW range – both for DC applications and with a modulated light source.

All parameters, such as PSD bias voltage, amplification, the use of analog or digital filters, etc., can be easily set and monitored with the software included in delivery. The beam spot on the detector is shown continuously on the monitor in the XY direction; the fluctuations in X-t and Y-t are also graphically represented. Optimized plot algorithms ensure that all data can be visually represented in full speed via USB 2.0 at the computer. SEEPOS is suited for all commercially available PSDs and designed for both skilled PSD users and beginners.

To carry out position measurements more easily, small and compact PSD modules (PSD Holder MH01) are available that are connected using only the DSUB9 connector that is included in delivery.

SPC PSD with Evaluation Board

SiTek’s SPC PSDs can also be supplied with an evaluation board, which makes the detectors much easier to use. The detector is mounted onto a small PCB. All input and output signals are connected by a 14-pin plug.

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LASER COMPONENTS (UK) Ltd.
CM2 7PR Chelmsford Essex
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Laser Components

Goldlay House, 114 Parkway
Chelmsford Essex CM2 7PR
United Kingdom

Phone: +44 1245 491 499

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