Posted in | Photodetectors

InGaAs/GaAs Photodetectors from Photonic Solutions

Photodetectors for pulsewidth measurement and pulse profiling. The GaAs (ET-4000/4000A) modules are suitable for wavelengths from 400-900nm and have an active region 40µm in diameter. The InGaAs modules (ET-3500/3500A) have a spectral sensitivity between 1000 and 1700nm (peaking with 900V/W at 1500nm). The cutoff frequency for the un-amplified models (ET-3500/ET-4000) is >10GHz.


  • Ultrafast rise and fall times (<35ps)
  • Wide frequency response (3dB bandwidth > 10GHz)
  • 1000 - 1650nm (ET-3500/3500A)
  • 450 - 870nm (ET-4000/4000A)

Other Equipment

Azthena logo powered by Azthena AI

Your AI Assistant finding answers from trusted AZoM content

Azthena logo with the word Azthena

Your AI Powered Scientific Assistant

Hi, I'm Azthena, you can trust me to find commercial scientific answers from

A few things you need to know before we start. Please read and accept to continue.

  • Use of “Azthena” is subject to the terms and conditions of use as set out by OpenAI.
  • Content provided on any AZoNetwork sites are subject to the site Terms & Conditions and Privacy Policy.
  • Large Language Models can make mistakes. Consider checking important information.

Great. Ask your question.

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.