This 3-port circulator features total insertion loss of less than 0.7 dB over a broad bandpass centered at 1550 nm. The circulator offers low PDL and PMD,
according to the manufacturer, and is suitable for DWDM applications or any system that is polarization sensitive. It uses non-reciprocal optics technology intended to offer an isolated optical path that allows for the inline processing of optical signals at low insertion loss.
Alliance Fiber Optics Products Inc.