photonics

RoboTechnik completed its Hong Kong listing on September 29 and began trading on the Hong Kong Stock Exchange. The company, active in photonics and silicon automation for manufacturing, adds to the flow of semiconductor-related firms seeking listings in Hong Kong. The move gives the company access to public capital markets as demand for automation and chip manufacturing equipment remains strong.

French quantum computing company Quandela is looking to work with South Korean firms to manufacture its photonic quantum chips. The move would pair Quandela's light-based quantum processor technology with Korea's advanced semiconductor manufacturing base. Details on specific partners or timelines have not yet been announced.

LightCounting has published its highlights from CIOE 2026, China's major optical communications and photonics exhibition. The round-up covers the key product announcements and technology trends showcased at the event, which draws optical module, transceiver and networking suppliers from around the world. Industry watchers are reviewing the show for signals on optical demand.

Researchers working under Optica's ultrafast laser research report that new laser techniques can reveal how materials respond to light down to the level of individual electrons. The advance gives scientists a more direct view of the electron dynamics that underpin light-matter interactions, with potential relevance for photonics, electronics and materials science, though detailed findings remain limited in available coverage.

Researchers report that a quantum Hall insulator can be used to link resonators so that signals travel in only one direction, a property known as nonreciprocal transmission. The approach exploits the topological edge states characteristic of the quantum Hall effect, which could prove useful for routing signals in photonic or microwave circuits without backward reflections or interference.