Abstract: An optical shape sensing (OSS) system includes a launch fixture configured to receive and secure an optical fiber within a flexible OSS enabled instrument, where the launch fixture includes a docking interface; a launch fixture base configured to be connected to a support structure; and a docking device configured to secure the launch fixture onto the launch fixture base. The docking device includes a launch fixture slot passing through the docking device, and the launch fixture slot is configured to receive and secure the docking interface of the launch fixture through both a top side of the docking device and an opposing bottom side of the docking device.