Test and Measurement Instruments

Overview - Coherent Terabit Test & Measurement Instruments 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.

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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.

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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.

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Optical Multi-Format Transmitter with 40 GHz Bandwidth

Flexible Generation of Multiple Optical Modulation Formats

The Optical Multi-Format Transmitter is a fully integrated optical frontend that converts electrical RF signals into IQ modulated optical signals. With a bandwidth of 40 GHz, it supports high-bandwidth dual-polarization IQ modulation and is ideal for generating various formats, such as QPSK and m-QAM. Features include automated BIAS control, easy format switching, and remote control capabilities via USB and Ethernet.

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High-Performance IQ Modulator with 60 GHz Bandwidth

Efficient Conversion of Electrical RF Signals to Optical Dual-Polarization IQ Signals

The IQ Modulator is a fully integrated optical frontend that converts electrical RF signals into various optical modulation formats (such as QPSK and m-QAM). With a bandwidth of over 60 GHz, it offers high signal fidelity for research and testing of multi-terabit systems. Automated BIAS control and user-friendly interfaces ensure long-term stable and precise performance without manual adjustments.

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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.

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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.

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