Optical connector module assembly

An optical connector module assembly for demountable coupling to an array of

• receptacles associated with an array of optoelectronic units, comprising:
• an array of discrete connector units corresponding to the array of receptacles, wherein the connector units each comprising an optical bench supporting an array of optical fibers for inputting/outputting optical signals to/from corresponding array of I/O ports of a corresponding optoelectronic unit, wherein each connector unit comprises a first coupling surface provided with first passive alignment features matching complementary second passive alignment features provided on a second coupling surface of a corresponding receptacle, and wherein removably mating the first passive alignment features and the second passive alignment features forms a demountable coupling between the first coupling surface and the second coupling surface,
• a frame detachably supporting the connector units with a desired clearance between the frame and corresponding connector units, in a manner permitting individual connector units to suspend or float with respect to the frame,
• a back cover attached to the frame, having a portion extending over the array of connector units;
• a biasing member between the portion of the back cover and the connector units, providing a preload biasing each connector unit in a vertical direction perpendicular towards the first coupling surface;
• wherein upon secured placement of the assembled optical connector module (e.g., securing onto a substrate) with respect to the optoelectronic units (e.g., on a substrate) with the connector units over the array of receptacles, the connector units are independently movable to separately locate and demountably coupled to a corresponding receptacle under the preload to mate the first and second passive alignment features on facing first and second coupling surface, thereby passively aligning each connector unit and a corresponding receptacle.