Test and measurement


Testing times

As data rates increase across fibre networks, optical loss budgets are being driven down - attenuation through the system must be lower than ever because there is less tolerance for overall loss of light.


CableLabs is spearheading efforts to develop a proposal that uses coherent optics to dramatically boost the capacity of hybrid fibre coaxial networks, reports Andy Extance


Systems vendors are using intelligent software to squeeze more performance from optical networks. Pauline Rigby reports on developments at OFC 2017