May 28, 2013 (M2 PRESSWIRE via COMTEX) — Ovum's analysis of 1Q13 results in the $14.5bn global optical networking (ON) market has highlighted several key shifts. First, ZTE overtook Alcatel-Lucent to grab the number two spot; for the first time, Chinese vendors hold the top two ranks in optical networking. Second, growth in 100G remains a bright spot as annualized revenues exceeded $1bn for the first time ever. Third, market growth overall remains difficult, challenging equipment vendors; only Fujitsu posted sequential and year-over-year gains.