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The Sector-2V Photodetector Preamplifier Module (PPM)
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Four-channel pulse threshold PPM;
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high speed;
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4 switches, 8 linear outputs;
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hermetically sealed construction, ruggedized;
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metal-to-glass package with flat detector window;
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application – determination of pulse laser radiation source coordinate
MAIN CHARACTERISTICS
PPM detector photoresponsive area diameter
(radial-sector silicon
multi-element p-i-n PD), mm
6
PPM detector element number, 4
Element spacing, mm
0.1
Half-amplitude duration, ns, not less than
10
Noise equivalent power, W, not over
1×10-7
Background noise equivalent power («background/responsive element»
power, not over 5õ10-7 W), W, not less than 1.8×10-7
Voltage responsivity:
- at 20 °Ñ, V/W, not less than
1×104
- at minus 50 îÑ, V/W, not less than
0.9×104
Output pulse parameters:
- polarity negative
- half-amplitude duration, µs 1 - 3
- front edge duration, ns, not over 100
- responsivity step-by-step reduction factor, % 10 - 25
- channels straggling, %, not over 4
Power supply voltage, V:
- for amplifier (Icons – not over 3.5 mÀ) ±12+2-1
- for photodiode (Icons – not over 1 mÀ) ±180+3.5-30
*Parameters are normalized at pulse duration of 20 ns.
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