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Photodiode Power Detectors

Fast, sensitive, low noise – Ideal for VIS/NIR power measurement.

The compact and highly sensitive PH series photodiode and Pronto-SI power detectors are particularly impressive in the VIS and NIR spectrum thanks to their short response times and low noise.

Low-noise photodiode detectors for laboratories and industry

Fast and accurate measurement results for research and industry 

Photodiode power detectors are the ideal solution for the precise measurement of low optical powers in the visible (VIS) and near-infrared (NIR) spectral range. Thanks to their high sensitivity and fast response time, they are ideal for applications in research, development, and industrial laser monitoring. 

The strong wavelength dependence of photodiodes can be both an advantage and a limitation. Their spectral sensitivity acts as a natural filter, reducing noise from unwanted light sources, but different detectors may be required for different wavelengths. 

Compared to thermopiles, photodiodes offer faster response times, lower noise, and greater immunity to temperature fluctuations. However, their high sensitivity also makes them more susceptible to ambient light interference, which often necessitates the use of optical bandpass filters to achieve reliable measurements.
 

Compact and efficient  

With fast rise times of around 0.2 seconds, photodiode power detectors enable fast and precise signal responses. Depending on the model, they are optimized for different wavelengths in the range between 210 and 1650 nm and are particularly suitable for measuring low power levels. Variants with ND filters are also available on an optional basis, allowing the maximum compatible power to be increased slightly. Due to the sensitive electronics, you will achieve the best measurement results after a short warm-up phase.

Features

  • Rise time: Approx. 0.2 seconds
  • Spectral range: Typically 320-1100 nm (depending on model)
  • Sensitivity: Typically 0.5 A/W (depending on wavelength and material)
  • Noise level: Very low
  • Connection options: BNC, USB, or DB15 (depending on model)

Benefits

  • High measurement accuracy at low power – Ideal for optical applications up to 800 mW
  • Fast response time – Virtually delay-free measurement results for dynamic processes
  • Low-noise signals – Low interference thanks to integrated spectral selectivity for precise analyses
  • Compact and efficient – Space-saving design with easy integration into existing systems

Supplier

LASER COMPONENTS Germany - Your competent partner for optical and optoelectronic components in Germany.

Welcome to LASER COMPONENTS Germany GmbH, your expert for photonics components. Each product in our wide range of detectors, laser diodes, laser modules, optics, fiber optics, and more is worth every Euro (€/EUR). Our customized solutions cover all conceivable areas of application: from sensor technology to medical technology. You can reach us here:

Werner-von-Siemens-Str. 15
82140 Olching
Deutschland

Phone: +49 8142 2864-0
Email: info(at)lasercomponents.com

Team of experts
You have questions or need our support?
Please call us.
Nadine Kujath
Sales Account Manager / Laser Measurement
Nadine Kujath
LASER COMPONENTS Germany GmbH
82140 Olching
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Laser Components

Werner-von-Siemens-Str. 15
82140 Olching
Deutschland

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