High repetition rate laser energy probe
Overview
SLT (Germany) Series PEM HiRep pyroelectric energy detectors for high repetition rates: thin metallic or black absorption layer enables fast heat transfer, rep rates above 2000pps (up to 2.5kHz for UV types); flat spectral response in VIS-NIR; metallic coating UV types more stable in the UV region.Description
【Overview】
Series PEM HiRep detectors are designed for high repetition rate lasers with a thin metallic or black absorption layer for faster heat transfer to the sensor element. Repetition rates above 2000pps are possible; spectral behaviour is flat in VIS and NIR. The metallic coating of the two UV types is more stable in the UV region than organic black coating.
【Key Features】
(1) Rep rates up to 2.5kHz (UV types);
(2) Thin metallic/black layer, fast heat transfer;
(3) Flat spectral response in VIS-NIR;
(4) UV metallic coating stable in UV region;
(5) Working range 30µJ-350mJ, accuracy ±3%.
【Typical Applications】
High repetition rate pulse energy measurement, single-wavelength rep-rate laser monitoring, UV laser testing.
Specifications
| Model | PEM 12 HiRep; PEM 24 HiRep; PEM 12 HiRep UV; PEM 24 HiRep UV |
| Active diameter | 12mm / 24mm / 12mm / 24mm |
| Sensitivity | 20-30 V/J / 20-30 V/J / 35-45 V/J / 35-45 V/J |
| Max. repetition rate | 750Hz / 750Hz / 2.5kHz / 1.2kHz |
| Max. average power | 2W / 5W / 2W / 5W |
| Max. energy density (10ns pulse) | 80 mJ/cm² / 80 mJ/cm² / 50 mJ/cm² / 50 mJ/cm² |
| Max. peak power density | 8 MW/cm² / 8 MW/cm² / 5 MW/cm² / 5 MW/cm² |
| Working range | 30µJ-100mJ / 30µJ-350mJ / 30µJ-60mJ / 30µJ-250mJ |
| Accuracy | ±3% |
| Dimensions (dia. x length) | 40×40mm / 55×39mm / 40×40mm / 55×39mm |
Technical Data
PEM HiRep 系列规格表与尺寸图
数据来源：SLT Sensor- und Lasertechnik GmbH 产品目录（Made in Germany）