Photonic Components Detectors
The detector group develops and manufactures high-speed photodetectors and photoreceivers as optoelectronic integrated circuits (OEICs) based on InP according to customer specifications, preferably for the 1.3 - 1.55 µm wavelength region with 1-150 GHz speed of operation.
Our research topics include perpendicular illuminated and waveguide-integrated detectors, using GaInAsP, AlGaInAs, or InP as material system, and design of resulting bandwidth, responsivity and polarization properties. As services, we offer design of mask sets, fabrication of wafers, processing, backend, AR coating, high-speed optoelectronic characterization; and prototype packaging into fiber-pigtailed modules with appropriate RF connectors up to 100 GHz.
For enhanced conversion gain, a monolithic integration of amplifiers, based on InP-HEMT technology, provides pinTWA photoreceiver OEICs for 40...100 Gbit/s data ranges.
Our photodetectors:
- Waveguide-integrated detectors up to 150 GHz bandwidth including bias-Ts
- Perpendicular illuminated circular detectors, up 40 GHz
- Narrowband photodetectors with 40, 60, 80, 85, 90, 100 GHz resonance
- Self-biased broadband photodetectors up to 100 GHz bandwidth (no ext. bias)
- Travelling-wave photodetectors with +10 dBm output power, 85 GHz bandwidth
- Balanced photodetectors up to 75 GHz bandwidth for > 80/85 Gbit/s data ranges
- Twin-type photodetectors with differential output for 40 Gbit/s data range
- APDs (avalanche photodiodes for 10 Gbit/s) under development
Our coherent photoreceivers:
- Monolithically integrated QPSK photoreceiver OEIC, operable over C-Band, symbol rate up to 56 Gbaud
Our pinTWA photoreceivers:
- pinTWA-OEICs for 40 Gbit/s with 60 V/W conversion gain
- pinTWA-OEICs for 80/85 Gbit/s with 45 V/W conversion gain
- pinTWA-OEICs for 100 Gbit/s (under development in GIBON and HECTO)
- Balanced pinTWA-OEICs for 40 Gbit/s with 50 V/W conversion gain
- Design and equipment of demultiplexing photoreceiver modules in GIBON and HECTO (s. "Public Projects" section)
We closely cooperate with u2t in the commercialisation of part of our portfolio. If you need any further information please feel free to contact us.
Monolitic coherent QPSK photoreceiver for 56 Gbaud
Typical HHI waveguide-integrated photodetector chip
Packaged photodetector, capable up to 160 Gbit/s
HHI Photodetector detects 160 Gb/s at 9 dBm with 0.25 Vpp
HHI pinTWA Photoreceivers for bitrates up to 112 Gbit/s
Ultra High-speed Photodetectors and Photoreceivers for Telecom and Datacom also Aiming at THz Applications (0.9 MB)- High Speed Photodetectors up to 160 Gbit/s (331 kB)
- Planar Photodetectors (244 kB)
- Photodetector Array (497 kB)
- Self-Biased Photodetector Module (306 kB)
- Balanced Photodetector (289 kB)
- Narrowband Photodetector (340 kB)
- Novel 107 Gbit/sec Bias-Feeding Photodetector (*.pdf) (308 kB)
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