laser power probe
Overview
SLT (Germany) Series BB broadband thermopile power detectors based on the thermoelectric principle - heat from incident radiation is converted directly into voltage. Broadband absorbing layer, suitable for 190nm-25µm; three models (BB 10 / BB 25 / BB 25 S); BB 25 S specially designed for service applications with compact housing.Description
【Overview】
Series BB thermopile power detectors, manufactured by SLT Sensor- und Lasertechnik GmbH (Germany), work on the thermoelectric principle: heat generated by incident radiation is directly converted into voltage. The BB series heads have a broadband absorbing layer, usable from 190nm to 25µm without significant wavelength dependence.
【Key Features】
(1) Thermoelectric principle, direct voltage output;
(2) Broadband absorbing layer, 190nm-25µm, no significant wavelength dependence;
(3) Three models: BB 10 (3W) / BB 25 (20W) / BB 25 S (5W, 10W short time);
(4) BB 25 S compact design for service applications;
(5) E-Connector with EEPROM identification;
(6) Recommended with PEM 710 / LM100 display, time constant reduced to 1s.
【Typical Applications】
Power measurement of cw- or high rep-rate lasers, laser power adjustment, field service testing.
Specifications
| Model | BB 10; BB 25; BB 25 S |
| Active diameter | 10mm / 25mm / 25mm |
| Sensitivity | approx. 400 mV/W / approx. 100 mV/W / approx. 100 mV/W |
| Time constant | 25s (<2s with gauge) |
| Max. average power | 3W / 20W / 5W (10W short time) |
| Detection threshold | 100µW / 1mW / 1mW |
| Max. power density | 20 W/cm² |
| Connector | E-Connector with EEPROM |
| Dimensions | Ø60×20mm / 100×120mm (77mm depth) / Ø90×30mm |
Technical Data
Thermopile 系列规格表（BB/LP/HP）
吸收层特性与尺寸图
数据来源：SLT Sensor- und Lasertechnik GmbH（Made in Germany）