Photoconductive Switches

Compact modules for pulsed terahertz generation

  • Fiber-Coupled InGaAs Antennas
  • SM/PM fiber pigtail and Silicon lens included
  • High bandwidth > 6 THz, typ. 70 µW power
  • Core components of TeraFlash pro and TeraFlash smart

Pulsed terahertz generation with leading-edge technology: InGaAs antennas provide up to 400 µW power and a bandwidth of 6 THz. The emitter and detector modules, developed by Fraunhofer Heinrich-Hertz Institute (Berlin/Germany), are packaged with a Silicon lens and SM/PM fiber and can be flexibly positioned in transmission or reflection experiments. 

Specifications

  Photoconductive Switches
Terahertz emitter InGaAs/InP photoconductive switch with strip-line antenna
Terahertz receiver InGaAs/InP photoconductive switch with dipole antenna
Emitter / receiver bandwidth 6 THz
Semiconductor material Multi-layer structure of InGaAs and InAIAs on InP
Wavelength 1.5 µm
Average terahertz power Typ. 70 µW @ 20 mW laser power
Package Cylindrical, integrated Si lens and SM/PM fiber pigtail
Emitter / receiver modules: Ø 25 mm, 34 mm length
Recommended operating conditions Laser power 20 mW average
Max. bias +100 V (unipolar, emitter), ± 3 V (receiver, only for testing)

 

Additional Information

Literature

Papers