Q.ANT a German Based company developing light computing.
Below is a description Q.ANT provided of the chip design their (LENA) architecture.
Q.ANT is a photonic deep-tech scale-up developing photonic processing solutions that compute natively with light and deliver a scalable alternative to transistor-based systems. Its Light Empowered Native Arithmetic (LENA) architecture delivers analog co-processing power optimized for complex computation and enabling energy-efficient performance for next-generation AI and HPC applications. Q.ANT operates its own Thin-Film Lithium Niobate (TFLN) chip pilot line in collaboration with the Institute for Microelectronics Stuttgart, IMS CHIPS, and is currently shipping its Native Processing Servers to selected partners. Q.ANT was founded by Michael Förtsch in 2018 and is headquartered in Stuttgart, Germany.
It's more demonstrator then taking on large scale technical problems that optic computing could deal with in the research space. But they are the first to come up with a commercial product photo below.

This is the linkedin pages of the founders.

Technical specifications of the Native Processing Server (NPS)
The Native Processing Server (NPS) is a 19″rack-mountable server with the Q.ANT photonic NPU PCIe card and is designed specifically for AI inference and advanced data processing. Its Plug & Play system design enables seamless integration into existing data centers and HPC environments, providing immediate access to photonic computing. The NPS is upgradable with additional NPU PCIe cards to increase processing power as workloads grow.

About Q.ANT
Q.ANT is a high-tech start-up in the field of quantum technology and was founded in 2018 as part of the TRUMPF Group. The company works on technologies for data generation and data processing. To this end, Q.ANT develops quantum sensors and quantum computer chips. With its four product lines Photonic Quantum Computing, Particle Metrology, Atomic Gyroscopes and Magnetic Sensing, Q.ANT is a partner for a wide variety of industries and fields of application, ranging from medical technology and autonomous driving to aerospace, mechanical engineering and process technology. Q.ANT employs around 80 people at its Stuttgart site.