Fujitsu Network Communications has attained over 75% market share for Reconfigurable Optical Add/Drop Multiplexers (ROADMs), according to figures from RHK cited by the company. The product category is defined as a platform that offers single wavelength granularity, optical layer protection with sub-50 ms switching times, automated per-channel dynamic gain equalization, and favorable engineering rules that let carriers shrink network Capital Expense (CAPEX) requirements. The market is being driven by metro WDM builds, including metro core/regional...