Laser energy meter Gentec Electro Optics
1064 nm, 7 ns, 10 Hz

The XLE4 – eXtreme Low Energy Detector
eXtreme Low Energy measurement: this is what the XLE4 stands for. From nJ’s to mJ’s, the XLE4 offers accurate NIST measurements in all conditions. It is a nice complement to our series of QE energy detectors to read even lower energies.

Low Noise Level
The XLE4 low noise equivalent energy of 30 nJ with an amplifier or 150 nJ with a SOLO sets it apart from the competition. This pyroelectric detector thus extends in the nJ’s the measurement range of QE series joulemeters. Its high sensitivity of 1100 V/J makes it ideal for measurement in noisy laser environments.

kHz Repetition Rate
The metallic coating of the XLE4 makes it an excellent choice for pulsed lasers up to 2000 Hz. It can detect pulses of duration up to 5 µs. Moreover, it can be used with many different types of lasers due to its broad spectral range.

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