The silicon nitride (SiN) photonic chip platform excels with low-loss propagation and supports wavelengths from visible to near-infrared.
PITC offers industry partners a unique Technology Programme for SiN PIC applications, supported by a comprehensive ecosystem of unparalleled expertise and cutting-edge research facilities.
Low loss, low power PICs
Silicon nitride has emerged as an ideal photonics platform for PIC applications that require low-loss, low-power and compact architecture. Its low optical loss and wide transparency window make it particularly well-suited for applications in LiDAR, sensing, bio-spectroscopy, and telecommunications. In the quantum domain, SiN is equally impactful, playing a critical role in quantum key distribution (QKD), quantum computing, and quantum sensing. Its low loss, stability, and seamless integration make it indispensable for driving advancements in quantum technologies.
Current challenges
While there is significant fundamental research in silicon nitride (SiN) technology at the academic level, pre-competitive research remains limited. To scale up SiN photonics and advance to higher Technology Readiness Levels (TRLs), it is crucial to bridge the gap between scientific research and industrial applications.
Start-ups, spin-offs, and established companies venturing into photonics often face challenges such as high development costs, extended time to market, and limited expertise or research facilities for specific applications. By collaborating with PITC and engaging with a community of experts, these challenges can be mitigated. Our approach helps reduce development costs, shorten time to market, and lower liabilities, offering tailored support to meet the specific needs of our partners.
Our goal
The SiN Technology Programme within PITC is hosted at the University of Twente (UT), where a unique collaboration of PhD students, professors, managers, and research engineers tackles key challenges on the SiN platform. Together, they work on topics strategically chosen to bridge the gap between research and real-world applications in integrated photonics. These efforts aim to advance the SiN platform by addressing critical areas necessary for its adoption and impact in photonic technologies.
By fostering this collaborative environment, the SiN subprogramme ensures that research outcomes translate effectively into practical, innovative solutions that meet industry needs.
Specific targets for this programme include:
Low loss SiN waveguides for quantum and microwave photonics applications. Target: <0.01 dB/cm with excellent reproducibility.
Integration of ultra-low loss modulators on SiN. PZT (stress-based) modulators for moderate-speed application, <1µW per modulator.
Integration of e-o modulators on SiN, with Vpi (@1 mm)<5 Volt and switching speed >100 GHz.
Coupling strategies for low-loss SiN PICs. Both fiber and chip-to-chip coupling. Target: <0.5 dB per facet.
Vibrant SiN ecosystem
The SiN Technology Program builds on over 30 years of expertise in integrated photonics using nitride-based waveguides. Partners gain access to a large and unique SiN ecosystem with extensive expertise spanning all aspects, from design to manufacturing. From the development of early silicon-oxide-nitride (SiON) chips to the creation of advanced silicon nitride (SiN) Photonic Integrated Circuits (PICs), we have cultivated a vibrant ecosystem in Twente, which is closely connected to other leading regions in the Netherlands and across Europe.
The University of Twente, in collaboration with local companies, continues to lead advancements in SiN technologies, driving innovation and expanding the impact of photonic solutions. Through this robust ecosystem, PITC and its partners are well-positioned to push the boundaries of SiN photonics.
Unique research facilities
Integrated Photonics and Quantum research at the University of Twente is carried out at the renowned MESA+ institute, which includes more than 600 scientists. A key asset of this research environment is the NanoLab, the largest in the Netherlands. This cutting-edge mixed-use facility, shared by academic researchers and companies, features a 1250 m² cleanroom (ISO 5/ISO 7) and an additional 1000 m² dedicated to specialised analysis equipment and research group laboratories.
New Origin foundry for SiN
In the next years, PITC partners benefit from a state-of-the-art foundry for SiN PIC manufacturing. In close collaboration with the University of Twente, MESA+ Nanolab and photonic companies, New Origin will establish as an independent pure-play foundry, producing cutting-edge SiN photonic chips. Our upcoming pure-play foundry will deliver unmatched quality, industry-leading turnaround times, and cost efficiency for a global customer base, pushing the boundaries of silicon nitride photonics.
Electronics and photonics integration Looking ahead, we focus on the semiconductor trend toward “systems of chips”, combining electronic and photonic chips through advanced packaging and integration, supported by PITCs Heterogeneous Integration Programme.
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