A unitary light coupling unit (100; 100'; 200; 200'; 500; 500') for use in an optical connector, comprising: a waveguide alignment member (115; 515) for receiving and aligning an optical waveguide (120; 220; 520); and a light redirecting member (130; 130'; 230; 530), comprising: an input surface (132; 232) for receiving input light from said optical waveguide (120; 220; 520) disposed and aligned at the waveguide alignment member (115; 515); a concave toroidal surface (134; 234) for receiving light from the input surface (132; 232) propagating along an input axis (142; 242) and reflecting the received light, the reflected light propagating along a different redirected axis (152; 252); and an output surface (136; 236) for receiving light from the concave toroidal surface and transmitting the received light as output light (155; 515) exiting the light redirecting member (130; 130'; 230; 530) propagating along an output axis, a curved intersection of the concave toroidal surface and a first plane formed by the input and redirected axes (142, 152) having a radius of curvature, characterised by a second divergence of the light reflected by said concave toroidal surface being less than a first divergence of the input light along two mutually orthogonal divergence directions, and the concave toroidal surface having an axis of revolution (106; 206) disposed in said first plane at the input surface (132; 232) and a focal length (f') measured from said axis of revolution (106, 206) to the concave toroidal surface along the input axis (142; 242), the focal length (f') being less than the radius of curvature. a waveguide alignment member (115; 515) for receiving and aligning an optical waveguide (120; 220; 520); and a light redirecting member (130; 130'; 230; 530), comprising: an input surface (132; 232) for receiving input light from said optical waveguide (120; 220; 520) disposed and aligned at the waveguide alignment member (115; 515); a concave toroidal surface (134; 234) for receiving light from the input surface (132; 232) propagating along an input axis (142; 242) and reflecting the received light, the reflected light propagating along a different redirected axis (152; 252); and an output surface (136; 236) for receiving light from the concave toroidal surface and transmitting the received light as output light (155; 515) exiting the light redirecting member (130; 130'; 230; 530) propagating along an output axis, a curved intersection of the concave toroidal surface and a first plane formed by the input and redirected axes (142, 152) having a radius of curvature, an input surface (132; 232) for receiving input light from said optical waveguide (120; 220; 520) disposed and aligned at the waveguide alignment member (115; 515); a concave toroidal surface (134; 234) for receiving light from the input surface (132; 232) propagating along an input axis (142; 242) and reflecting the received light, the reflected light propagating along a different redirected axis (152; 252); and an output surface (136; 236) for receiving light from the concave toroidal surface and transmitting the received light as output light (155; 515) exiting the light redirecting member (130; 130'; 230; 530) propagating along an output axis, a curved intersection of the concave toroidal surface and a first plane formed by the input and redirected axes (142, 152) having a radius of curvature, characterised by a second divergence of the light reflected by said concave toroidal surface being less than a first divergence of the input light along two mutually orthogonal divergence directions, and the concave toroidal surface having an axis of revolution (106; 206) disposed in said first plane at the input surface (132; 232) and a focal length (f') measured from said axis of revolution (106, 206) to the concave toroidal surface along the input axis (142; 242), the focal length (f') being less than the radius of curvature.