Variable Ratio Coupler is an earlier Newport design that
has not been connectorized. The current part
number is F-CPL-1550-N-FA or F-CPL-1550-N-FP.
The F-CPL-1550-N-FA Variable Ratio Coupler is an all
fiber, polished directional coupler with variable
coupling ratio. This device can be used to divide or
combine 1550 nm optical signals in fiber optics
research. With its low loss and precision mechanism, the
F-CPL series gives you smooth and easy control of
coupling ratio. This non-PM fiber version has FC/APC
connectorized fiber pigtails.