Fiber optic tray systems

A fiber optic tray system for accommodating a plurality of fiber optic modules, at least two of the plurality of fiber optic modules having different relative widths as compared to one another, each of the plurality of fiber optic modules comprising an outer housing and at least one alignment channel defined in the outer housing, the fiber optic tray system comprising:

• an enclosure defining a transverse axis, a longitudinal axis, and a lateral axis;
• a plurality of trays housed in the enclosure and stacked along the transverse axis, each of the plurality of trays independently moveable along the longitudinal axis, each of the plurality of trays comprising:
• a tray body extending along the longitudinal axis between a front and a rear and extending along the lateral axis between a first side and a second side;
• and
• a plurality of alignment rails protruding from the tray body, the plurality of alignment rails spaced apart from each other along the lateral axis,
• wherein the plurality of trays are configured for aligning the plurality of fiber optic modules in a plurality of relative configurations.