The value of the optical time domain reflectometer (OTDR) market is expected to reach $230.6 million by 2021, according to forecasting firm ElectroniCast Consultants. According to the market study, the consumption value of small-form-factor pluggable (SFP) optical transceivers, which have an embedded OTDR for detecting problem-points along an optical fiber link, is forecasted to dominate the market share of OTDR devices in remote fiber testing and monitoring applications. “Critical-use/high data-rate optical fiber links are increasing to meet huge bandwidth demands, increasing the number of links at an explosive growth rate,” said Stephen Montgomery, director of the fiber optic component group at ElectroniCast. “The demand to add more bandwidth capability in a smaller space, along with improving service-level agreement pressures, are just a few of the many strong selling points for the use of embedded OTDR/SFP transceivers,” Montgomery said. ElectroniCast Consultants calculates trends in technology forecasting, markets and applications forecasting, strategic planning and consulting.