Bi-directional data center architectures including a jacketless trunk cable and methods of forming the same

Bi-directional data center architectures employing a jacketless trunk cable are disclosed. The bi-directional data center architecture includes first and second coupling panels respectively having first adapters and second adapters. The architecture also includes a plurality of sub-racks having sub-rack adapters, and a jacketless trunk cable that includes a plurality of sub-unit sections, with each sub-unit section carrying one or more optical fibers. The plurality of sub-unit sections are configured to optically connect corresponding first and second adapters of the first and second coupling panels to the sub-rack adapters such that every optical fiber in each sub-unit section is used to establish an optical connection.