Group 1 - The company is responsible for Optical Systems and Optics, which includes traditional DWDM systems primarily sold to service providers and hyperscalers [1] - The Optical Systems business focuses on dense wavelength division multiplexing (DWDM) technology used for transmitting signals over fiber optic infrastructure [1] - Competitors in the Optical Systems domain include Ciena, Fujitsu, ADVA, Infinera, Huawei, and ZTE, indicating a fragmented market [1]