China International Optoelectronic Exposition (CIOE) 2027Shenzhen Optoelectronics Expo: Dates & Visitor Guide

What is China International Optoelectronic Exposition (CIOE)?

CIOE (中国光博会) is Shenzhen's photonics and optoelectronics fair, held every September at Shenzhen World in Bao'an. The 27th edition in September 2026 filled 260,000 m² with 4,060 exhibitors and recorded 189,755 professional visitors. The 2025 edition had 3,827 exhibitors and 143,645 visitors, including about 6,100 from overseas. The 28th edition runs 8–10 September 2027, again with the International Integrated Circuit Innovation Expo (IICIE) and the elexcon electronics and embedded show next door. One e-pass covers all three.

The show is organised as eight themed expos. They cover information and communication (optical chips, components, transceivers, fibre and cable, data-centre optics), precision optics and camera modules, lasers and intelligent manufacturing, infrared and ultraviolet, intelligent sensing (LiDAR, 3D and spectral sensing), displays (Mini/Micro LED, automotive and flexible), AR/VR optics and AI glasses, and a photonics-innovation area for start-ups and university spin-offs. In 2026 the organizers put the optical interconnects behind AI data centres at the centre: 800G to 1.6T transceivers, silicon photonics, and co-packaged and near-packaged optics (CPO, NPO). Named exhibitors included Accelink, Eoptolink, TFC (Tianfu), Luxshare, Coherent, HiSilicon's optoelectronics unit, Sanan, MACOM, Hengtong, FiberHome, POET Technologies and ASMPT. Several Chinese chipmakers used the show for world-first launches of high-speed photodetector chips.

There are also hands-on zones: automotive optical communication, embodied robots, automotive displays, an XR-glasses teardown, telescopes and astronomy gear, and laser medical aesthetics. The conference side has more than 90 forums (98 events in 2026), led by the information-communication, optics and laser industry forums. International partners such as Yole Group, the European Photonics Industry Consortium and ePIXfab take part. Visitors are engineers, R&D staff, buyers and managers from telecom and data-centre operators, module and device makers, consumer electronics, cars, industrial automation, security and medical devices. A VIP buyer programme sets up matchmaking for people with real purchasing plans.

Much of the optical supply chain it covers, from camera modules to lasers and LiDAR, has a big presence in Shenzhen and the Pearl River Delta. Go if you buy or design anything optical, from transceivers to lenses and lasers, or want to see most of China's photonics industry in a single visit.