Lumentum Holdings Inc. designs, manufactures and sells optical and photonic products for telecommunications networking, cloud data centers, enterprise networks and commercial laser applications worldwide. The company offers high-performance lasers, modulators, detectors and transceivers for telecom infrastructure including access, metro, long-haul and submarine networks; optical components, modules and subsystems for data center interconnects, artificial intelligence and machine learning applications; vertical-cavity surface-emitting lasers for 3D sensing in consumer electronics, automotive and industrial uses; diode lasers and industrial lasers for advanced manufacturing, imaging and sensing; and optical circuit switches such as the recently introduced R64 model for lower-port-count data center deployments. Founded in 2015 and headquartered in San Jose, California, Lumentum operates manufacturing facilities and sales offices across North America, Europe, Asia-Pacific and other regions, employing approximately 7,500 people. Recent developments include reporting first quarter fiscal 2026 financial results in November 2025, announcing upcoming investor events, celebrating 10 years of photonic innovation and launching new data center innovations highlighted at ECOC 2025, alongside ongoing expansion in AI scaling through optical circuit switching technologies.