Last year, Ciena Corp generated 3.25B USD for its biggest-performing segment, Optical Networking. The United States made the largest contribution, accounting for 3.40B USD last year. For the latest quarter, Ciena Corp reported the revenue of 1.10B USD for the period ending 2026-05-02, which came from the top-performing segment, Optical Networking. United States contributed the highest revenue, at 1.20B USD.