1. An optical module configured to direct light from a source to a receiver in an optical assembly, the optical module comprising:a beam steering portion;
a first side defining an inner surface that faces the beam steering portion;
a second side defining an inner surface adjacent to the inner surface of the first side, the inner surface of the second side facing the beam steering portion, wherein the optical module is configured to:
direct an initial light beam from the first side to the beam steering portion along a first direction;
divide the initial light beam into a signal light beam and a fractional light beam;
direct the signal light beam toward the second side; and
direct the fractional light beam toward the first side along the first direction such the fractional light beam at or near the first side is spaced from the initial light beam at or near the first side along a second direction that is substantially perpendicular to the first direction.