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Sales & Tech Support: 231-935-4044 or sales@eotech.com

High Speed Photodetectors

High Speed Photodetectors

EOT's High Speed Photodetectors contain PIN photodiodes that utilize the photovoltaic effect to convert optical power into an electrical current.

When terminated into 50 Ω into an oscilloscope, the pulsewidth of a laser can be measured. When terminated into 50 Ω into a spectrum analyzer, the frequency response of a laser can be measured. 

EOT's High Speed Photodetectors come with their own internal bias supply consisting of long-life lithium cells. Plugging a coaxial cable into the photodetector's SMA output connector and terminating into 50 Ω at the oscilloscope or spectrum analyzer is all that is required for operation.

High Speed Photodetectors Data Sheet


  • Small footprint
  • Internal voltage bias
  • DC to 22 GHz


  • Can be ordered with optional wall plug-in power supply
  • Fiber-coupled or free space options available
  • Detector material


  • Monitoring the output of Q-switched lasers
  • Monitoring the output of mode-locked lasers
  • Monitoring the output of externally modulated CW lasers
  • High frequency, heterodyne applications
  • Time domain and frequency response measurements