Universal optical waveguide trays

A universal tray for holding a plurality of workpieces, comprising:

• a frame comprising a plurality of openings;
• a plurality of fingers surrounding each of the plurality of openings, the plurality of fingers extending toward a center of a respective opening;
• a downward support extending downward from the frame to engage with a top surface of a frame of an adjacent tray;
• and
• retention mechanisms disposed in a volume between the plurality of fingers and a bottom of the downward support to retain a workpiece disposed on an adjacent frame;
• wherein an elastomer is disposed on a top surface of each of the plurality of fingers and wherein a top surface of the elastomer is sloped downward as it extends toward the center of the respective opening.

A universal tray for holding a plurality of workpieces, comprising:

• a frame comprising a plurality of openings;
• a plurality of elastomer fingers surrounding and extending into each of the plurality of openings, each elastomer finger extending toward a center of a respective opening, such that at least three elastomer fingers extend into each of the plurality of openings;
• and
• wherein a top surface of each elastomer finger is sloped downward as it extends toward the center of the respective opening.