Patent ID: 9323065
Filing Date: 2016-04-26
CPC Classification: G02B,G02F,H04J

Claim Text:
1. An optical multiplexer (MUX) comprising: a base having at least an upper surface and a lower surface; N light sources mounted on the upper surface of the base, where N is an integer that is greater than or equal to two, each light source emitting a light beam of a particular operating wavelength (WL), and wherein the operating WLs are different from one another; a lens mounted on the upper surface of the base, the lens collimating each of a respective one of the light beams received from the N light sources into N respective collimated light beams; and a filter block mounted on the upper surface of the base, the filter block arranged to receive the N collimated light beams from the lens along N parallel input optical pathways and to redirect each of the N collimated light beams along a main optical pathway that extends from a first end of the filter block to an opposing end of the filter block and is oriented orthogonal to the N parallel input optical pathways, the filter block including at least a first high pass filter and a second high pass filter, each of which is disposed in the main optical pathway, the first high pass filter arranged to pass a first wavelength of light in at least one of the redirected N collimated light beams while blocking a second wavelength of light in the at least one of the redirected N collimated light beams, the second high pass filter arranged to pass each of the first wavelength of light and the second wavelength of light in the at least one of the redirected N collimated light beams while blocking a third wavelength of light in the at least one of the redirected N collimated light beams.