OPIE 2026
APR 2026
22 - 24
Yokohama, 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 OPIE 2026 Fraunhofer HHI presents the latest developments in Photonic Components, Networks and Systems at Booth G02 from April 22-24 in Yokohama, Japan.
Contact
Narrow Linewidth and Mode-Locked Lasers
Ultra-stable and ultra-fast laser sources for next-generation photonic systems
Fraunhofer HHI develops high-performance laser sources with ultra-narrow linewidth for stable, low-noise continuous-wave emission. Furthermore mode-locked lasers enable ultrashort pulse generation with tailored repetition rates. Based on hybrid photonic integration, these lasers provide excellent coherence and flexibility, ideal for coherent communications, optical sensing, metrology, and frequency comb generation.
PICs for Quantum Technologies
Hybrid integration and micro-optical bench
The PolyBoard wafer technology provides key building blocks for quantum photonic integrated circuits, including active/passive hybrid integration and micro‑optical bench solutions. Demonstrated applications range from polarization‑encoded QKD transmitters to photon‑pair sources based on on‑chip nonlinear crystals.
Technical Contact
RF PIC Evaluation with RFconnect
A compact RF PIC assembly for fast and convenient prototype development up to 40 GHz
Have you designed an InP PIC on our MPW run and don’t have access to electrical and optical PIC probing equipment? RFconnect allows you to interface your PIC with up to 10 optical fibers, 42 DC and 8 RF ports and TEC for thermal management for your experiments. The generic assembly service is an add-on to Fraunhofer HHI’s field-proven InP foundry services.
Technical Contact
Single Photon Avalanche Photodiode Module and Arrays
Single Photon Detection for Quantum Communication and Sensing
Fraunhofer HHI provides photodetector modules for single photon detection operating from the O- to the L-band. The SPAD chips inside the modules are based on mature InP technology and are fabricated in the wafer process line of Fraunhofer HHI, with Telcordia and space-qualified processes. The SPAD supply chain is completely within EU, including packaging at the Fraunhofer HHI facility.
Thin-Film Lithium-Niobate
TFLN PICs for Communication and Sensing
Fraunhofer HHI offers high-speed phase modulation for 100+ GHz Mach-Zehnder modulators on TFLN PICs. The broad optical spectrum from 450 - 4500 nm allows for a wide range of applications in sensing, communication and quantum. First building blocks for customized wafer fabrication are available and regular TFLN MPW runs are coming soon.
Technical Contact
Dr.-Ing. Patrick Runge
Head of InP and RF Department
Head of Modulators and Detectors Group
Phone +49 30 31002-498
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.
100 GHz Coherent Receiver Frontend with Optical Extender Heads
Fraunhofer HHI offers a fully integrated 100 GHz bandwidth coherent receiver frontend with optical extender heads
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 100 GHz bandwidth detection with polarization- and phase-diversity over S+C+L-band. Its unique features are optical extender heads with robust 1mm RF ruggedized connectors enabling high signal integrity, robust testing & measurement performance and convenient handling & operation for our customers.
Integrated DP-IQ Reference-Transmitter
Fraunhofer and ID Photonics offer a fully integrated High-Bandwidth DP-IQ Reference Transmitter.
Fraunhofer HHI and ID Photonics are presenting at this years OFC the DP-IQ Reference Transmitter. It is a fully integrated optical frontend instrument that converts differential electrical RF signals into various optical modulation formats (e.g. QPSK and m-QAM) using a high fidelity tuneable laser source followed by a high-bandwidth dual-polarization IQ Mach Zehnder modulator with a flexible and highly stable automatic bias control. It is an ideal match to convert signals generated by an Arbitrary Waveform Generator (AWG) into the optical domain.
fiber-like - LiFi 2.0
Optical Wireless Communication for 6G Backhaul
Building on our established LED-based point-to-point links we present the next generation of optical wireless technology: LiFi 2.0.
Based on high-power VCSEL-array transmitters and low-noise APD-array receivers, we demonstrate a live system capable of 5 Gbps. Combining imaging optics and a DSP solution based on IEEE 802.13.15 we reach field of views of 60° without diminishing the data-rate. Simple alignment during installation and rate-adaptivity during operation enable optical front- and backhauling with a reliability of 99.99% for future mobile communication systems and offers mobile operators new flexibility in developing their networks – as a capacity upgrade for existing wireless links, to improve resilience against adverse weather conditions or as a standalone solution for rapid or economical network development.
Technical Contact
