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large area 4-quadrant photo detector
in round housing
typical applications
- laser deflection for displacement detection
(AFM, SNOM, micromechanics)
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basic data:
voltage supply:
detector type:
amplification:
outputs: |
12V
QP50-6
10 kOhm / 22pF
standard: SUB-D-15
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Properties of the Photo diode:
active diameter:
active area:
inactive spacing:
sensitivity:
wave length for maximum sensitivity:
spectral range:
dark current (VR = 1 V):
capacitance: |
7.8 mm
50 mm*mm
0,042 mm
0,45 A/W (typ.)
900 nm
320 nm ... 1060 nm
5 nA
70 pF (Vs = 0 V) |
electronic board:
type
amplification:
band width:
output noise:
dimensions: |
current voltage converter
typical: 100 V/mA (10 kOhm)
> 310 kHz
< 2 mVpp
D 22 mm x 60 mm
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description:
The device is designed for AFM or
SNOM applications, where the experimental geometry needs a larger
distance between measurement position and detector. Then, the laser
spot is larger.
The full data sheet is provided.
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