Coherent Terabit Test & Measurement Instrumentation for Multi-band
High-Performance Equipment for Ultra-Fast Optical Communication
Fraunhofer HHI offers test and measurement instruments for Tbit/s coherent communication systems across the O-, S-, C-, L-, and U-Bands. Ideal for generating, transmitting, and coherently detecting high-speed dual-polarization m-PAM and m-QAM signals, these high-performance instruments support the research and development of the next generation of optical fiber-based communication.
100G Coherent Receiver Frontend
High speed, 200 GHz optical bandwidth, optical extender heads
The 100 GHz coherent receiver frontend (CRF-100G) offers optical bandwidth detection at 200 GHz with polarization and phase diversity across the C+L band. Unique adjustable optical extender heads with a 1 mm RF connector maintain high signal integrity, providing robust testing and measurement performance for advanced R&D activities. This robust solution, available on request, ensures convenient handling and operation for Fraunhofer HHI's customers.
Coherent Optical Frontend for High-Speed Communication
Compact Transceiver Frontend for Precise Optical Signal Processing
The Coherent Optical Frontend is a compact transceiver frontend based on CFP2-ACO modules, supporting up to 32 GBd operation. It includes a transmitter with linear driver amplifiers and a DP-IQ modulator, and a receiver with polarization-diverse 90° hybrid, balanced photodiodes, and linear TIAs. Ideal for generating and detecting high-speed QAM signals and for testing coherent optical transmission systems.
Optical Multi-Format Transmitter
Flexible Generation of Multiple Optical Modulation Formats
The Optical Multi-Format Transmitter (OMFT) is a fully integrated optical frontend instrument designed to convert electrical RF signals into Dual Polarization IQ modulated optical signals. It serves well as a standard transmitter for receiver characterization or reference transmitter setups.
Reference Dual Polarization IQ Transmitter
High-precision Optical Frontend for Modulated Signals in Research and Test Environments
This compact system converts electrical RF signals into dual-polarization IQ-modulated optical signals—ideal for coherent receiver characterization. Its automated, format-independent BIAS control ensures stable signal quality without manual tuning. Three variants offer bandwidths up to 80 GHz and support baud rates up to 170 GBaud.
CoRX – Coherent Optical IQ Receiver
Versatile Broadband Receiver for Coherent Signals with up to 60 GHz Bandwidth
CoRX is a compact and calibrated IQ receiver for optical signals with 20, 40, or 60 GHz bandwidth options. Featuring automatic calibration, optional DSP, and multiple form factors, it’s an ideal choice for research, development, and testing in coherent transmission systems.
Optical Single Loop Control
Precise Control for Optical Measurement Systems
The Optical Single Loop Control (OSLC) provides precise control in optical measurement systems, including adjustments of loop times between 20 ns and 5 μs and fine-tuning of optical switches. The system supports high-frequency signals up to 50 GHz and offers synchronization within the picosecond range. A user-friendly interface and remote control options ensure flexible and versatile applications.
Digital Signal Processing
High-Speed Digital Signal Processing Platform
Versatile Platform for Real-Time Testing of Digital Signal Processing Algorithms
The High-Speed Digital Signal Processing Platform is an advanced platform for real-time testing of digital signal processing algorithms based on the Micro-TCA standard. It supports various plug-in boards (ADC, DAC, 100G interfaces, FPGA processors) and enables real-time data transmission. The platform features freely programmable FPGA boards, a gigabit Ethernet interface, and pre-designed IP cores for hardware interfacing and DSP functions, ideal for applications in online transmission, real-time measurement, and FPGA-based prototyping.
Terahertz Communication
Wireless Terahertz Communication
High Transmission Capacities for 6G Networks and Beyond
Terahertz communication enables wireless transmission capacities exceeding 100 Gbit/s, suited for applications like backhaul, fixed wireless access, and short-range indoor use. Operating above 100 GHz, it provides high bandwidth and compact antenna solutions. Terahertz systems are perfect for secure, highly directional links and are expected to revolutionize future 6G networks.