Coherent Inc.
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Small-Area BNC Terminated Energy Sensors

Coherent Inc.
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Sensors include an integrated, fast pre-amplifier circuit, and are optimized for measuring low-energy, high repetition rate lasers.

The J3- and J4- models utilize a pyroelectric detector, while the J3S-10 is based upon a silicon detector.  All sensors are EMI-shielded and contain a noise-free, onboard 9V battery power supply and a low-battery LED indicator.

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For detailed specifications, see part number.
Name
Description
0.2µJ-0.2mJ, 2mm dia, 400 Hz energy sensor with chrome coating (BNC output; 20 kHz possible with scope)
0.2µJ-1mJ, 5mm dia, 400 Hz energy sensor with chrome coating (BNC output; 20 kHz possible with scope)
0.4µJ-2mJ, 9mm dia, 400 Hz energy sensor with chrome coating (BNC output; 20 kHz possible with scope)
0.2pJ-0.2µJ, 10mm dia, 400 Hz energy sensor with silicon photodiode (BNC output; 20 kHz possible with scope)
0.2µJ-1mJ, 5mm dia, 400 Hz energy sensor with black coating (BNC output)
0.4µJ-2mJ, 9mm dia, 300 Hz energy sensor with black coating (BNC output)

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