High-speed laser power measurement with thermal sensors
Soliton offers High-speed thermal sensors from LaserPoint for the precise measurement of Laser power and laser energy in applications with particularly rapid power changes.
The sensors of the Blink series have been specially developed for highly dynamic laser processes. Compared to classic thermopile detectors, they enable a Extremely low response time, without losing the advantages of a broadband thermal measuring principle. This means that even rapidly varying laser powers can be measured precisely.
Blink FR and Blink HS for fast laser processes
The Blink family includes various sensor designs for different speed and sensitivity requirements. These particularly include the series Blink FR (Fast Response) and Blink HS (High Speed) as well as particularly sensitive high-speed variants.
The sensors are particularly suitable for measuring pulsed lasers with high repetition rates. Depending on the design, laser pulses with pulse durations down to the femtosecond range and Repetition rates up to 1 MHz can be reliably recorded.
Thus, the Blink sensors combine the robustness and wide dynamic range of thermal detectors with a response time optimized for fast and highly dynamic laser applications.
Broadband measurement from UV to THz
Due to the thermal measuring principle, a broadband spectral sensitivity received. The sensors can detect laser radiation from UV range up to the THz range capture and are therefore suitable for a wide variety of laser sources and wavelengths.
At the same time, the Blink series enables measurements over a wide range of power densities. As a result, both pulsed lasers and CW laser sources can be reliably characterized.
Compared to pyroelectric sensors or photodiodes, the high-speed thermal sensors offer a special combination of:
- very fast response time
- broadband spectral sensitivity
- high saturation threshold under direct laser irradiation
- large usable power range
- Suitability for CW and pulsed lasers
Typical applications
High-speed thermal sensors from LaserPoint are particularly suitable for applications where rapid changes in laser power must be reliably detected. Typical areas of application are:
- Monitoring of high-speed laser processes
- Characterization of ultrashort pulse lasers
- Measurement of high-repetition-rate pulsed lasers
- Quality assurance in semiconductor manufacturing
- Calibration and testing of laser systems
- Research and Development
- Process monitoring and industrial laser measurement technology
Models and variants
LaserPoint's high-speed thermal sensors are available in various versions:
Fast Response – Blink FR Series 
Thermal sensors with a particularly fast response time for dynamic performance measurements.
High-speed sensors for particularly fast laser processes and high repetition rates.
High Sensitivity – Blink HS Series 
Sensitive variants for applications combining high measurement speed with the detection of lower laser powers.
The selection of the appropriate sensor depends, among other things, on laser power, pulse energy, wavelength, pulse duration, repetition rate, beam diameter, and power density. Soliton assists you in selecting and designing the appropriate LaserPoint sensor for your measurement task.
