System and method for aligning a first optical device with an input port of a second optical device

Broadband light is fed into the input optical fiber and the fiber is placed adjacent an input port of a waveguide device. An aperture plate with a suitably sized aperture is placed between the relevant output ports of the waveguide device and a light intensity detector. The light intensity detector is coupled to an optical power meter that measures the intensity of the light received by the detector. The aperture plate filters out extraneous light emanating from the areas of the waveguide device surrounding the relevant output ports. The detector then receives the incoming light and the power meter measures its intensity. The position of the input optical fiber is then adjusted as required to maximize the intensity of the light received by the detector.