A multi-source optical module is described that includes an optical
circuit positioned on a base. The optical circuit includes a first and a
second optical input. A first and a second optical source are positioned
on the base relative to the optical circuit. A first lens is positioned
between an output of the first optical source and a first input of the
optical circuit. A second lens is positioned between an output of the
second optical source and a second input of the optical circuit. At least
one of the first and the second lenses are positionable so that the
output of a respective one of the first and second optical sources and a
respective one of the first and the second optical inputs of the optical
circuit are aligned.