SpotOn Compact-Position Sensing

High accuracy compact beam positioning system. No need for manifold box.

Built-in electronics within sensor head.

Measure both position and power, available with dual axis Lateral effect detector (down to 0.1um resolution @ 50Hz digital filter, +/-6um absolute accuracy), or with 4-Quadrant detector (accuracy down to +/-0.025% of beam diameter).

Specifications

Detector	L – Lateral Effect	L04	Q – Four Quadrant
Size	9 x 9 mm	4 x 4 mm	10 x 10 mm
Type	Dual axis Si, No glass cover	Dual axis Si, No glass cover	4x Si sectors seperated by 30 μm gap, No glass cover
Usable beam size	⌀50μm to ⌀9 mm	⌀50μm to ⌀4 mm	⌀50μm to ⌀5 mm
Position measurement range	⌀9 mm	⌀4 mm	One beam radius up to ±2.5 mm
Position resolution	Down to 0.1 μm at 50 Hz digital filter plus averaging	Down to 0.1 μm at 50 Hz digital filter plus averaging	Down to 0.25% of beam size
Position accuracy	±12.5 μm over 9 mm dia.	±6 μm over 4 mm dia.	±1μm or ±0.025% of beam size
Update rate	Max. 150 Hz at 500 Hz digital filters
Operational Spectral range	350 – 1100 nm
Power range	10 μW to 10 mW with attenuating ND filters
Power accuracy (*)	±5%

Ordering Information

SPOTCOM – Complete system including sensor head, USB2.0 mini 1.8m cable, software and user manual on CD, Carrying case. Select anyone of the heads, calibration files are saved on the PSD heads and load automatically to the software: