A non-intrusive monitoring optical connection apparatus includes first and second fiber optic communication lines (2, 8) arranged for light to pass therebetween. The first and second fiber optic communication lines (2, 8) have first and second ferrules (4, 6) at ends thereof, respectively. An optical element (13, 25) is disposed between the fiber optic communication lines (2, 8). Most of the light passes between the fiber optic communication lines (2, 8) and a small part of the light is harvested by the optical element (13, 25) and detected by a photo detector (15, 28).