OECC/PSC 2025
JUN - JUL 2025
29 - 03
Sapporo, Japan
The Fraunhofer Heinrich-Hertz-Institut (HHI) is a world leader in the development for mobile and optical communication networks and systems as well as processing and coding of video signals. Together with international partners from research and industry, Fraunhofer HHI works in the whole spectrum of digital infrastructure – from fundamental research to the development of prototypes and solutions.
At OECC/PSC 2025 Fraunhofer HHI presents the latest developments in coherent optical reception technology at the i-wave booth from June 29 - July 03 in Sapporo, Japan.
Contact
O-band Optical Multi-Format Transmitter
Fraunhofer presents a fully integrated optical frontend that converts electrical RF signals into I/Q modulated optical signals in the O-band.
The optical O-band frontend is an transmitter that enables high-bitrate data transmission and allows for the flexible generation of optical data I/Q signals by using a high-bandwidth IQ Mach Zehnder based optical modulator. This device provides matched channels optimized for next generation multi-level transmission. The unique RF amplitude modulation format independent automated BIAS control allows the users to apply customized RF input signals without requiring manual tweaking.
70 GHz Coherent O-band Receiver Frontend with optical extender heads
Fraunhofer offers a fully integrated 100 GHz bandwidth coherent receiver frontend with optical extender heads for the O-band.
To cope with the continuously growing demand for bandwidth over multiple wavelength bands in telecom and datacom applications, Fraunhofer HHI researchers developed a Coherent Receiver Frontend (CRF), offering 70 GHz bandwidth detection with polarization- and phase-diversity on the O-band. Its unique features are optical extender heads enabling high signal integrity, robust testing & measurement performance and convenient handling & operation for our customers.
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.
Technical Contact
Dr. rer. nat. Colja Schubert
Head of Submarine and Core Systems Group
Phone +49 30 31002-252
Conference presentations with participation of Fraunhofer HHI
Workshop: „Technologies for Capacity Increase in Future 6G Fiber Networks – Enabling Projects“
Colja Schubert
Jun 29, 2025 2:00 PM - 5:30 PM (JST), Room E (2F Small Hall)