GaAs and InGaAs Photomixers
Emitter/receiver modules for TeraBeam
• Cutting-edge photomixer technology
• GaAs and InGaAs-based emitter/receiver modules
• Fully packaged modules with SM/PM fiber pigtail
• Up to 65 µW output power
• Requires TeraBeam 780 or TeraBeam 1550
Having teamed up with some of the leading terahertz research institutes, TOPTICA is able to provide top-quality GaAs and InGaAs photomixers. Both material systems offer an excellent bandwidth and dynamic range. The modules come equipped with a Silicon lens and SM/PM fiber pigtail. The all-fiber design eliminates the need for time-consuming laser beam alignment, and enables an easy and flexible integration into any terahertz assembly.
Applications
Plastic Inspection
Paint and coating layers
Paper quality control
Hydration monitoring
Communication
Ultrafast dynamics
Gas sensing
Fundamental physics
Specifications
Specifications GaAs Modules InGaAs Modules Terahertz Emitter
#EK-000831, GaAs photomixer
#EK-000724, InGaAs p-i-n photodiode
Terahertz receiver
#EK-000832, GaAs photomixer
#EK-000725, InGaAs photomixer
Excitation wavelength
0.8 µm
1.5 µm
Antenna type
Log-spiral
Bow-tie
Terahertz polarization
Circular
Linear
Emitter and receiver package
Cylindrical, ∅ 1", Integrated Si lens and SM/PM, fiber pigtail
Cylindrical, ∅ 25 mm, Integrated Si lens and SM/PM, fiber pigtail
Emitter and receiver bandwidth
Approx. 3 THz
Terahertz power (typ.)
2 µW @ 100 GHz, 0.3 µW @ 500 GHz
100 µW @ 100 GHz, 10 µW @ 500 GHz
Terahertz dynamic range
80 dB @ 100 GHz
90 dB @ 100 GHz
(300 ms integration time)
70 dB @ 500 GHz
70 dB @ 500 GHz