Docking device for optical shape sensing launch fixtures

An optical shape sensing (OSS) system, comprising:

• a plurality of launch fixtures comprising a plurality of docking interfaces, respectively, wherein each launch fixture is configured to receive and secure an optical fiber within a flexible OSS enabled instrument;
• a launch fixture base configured to be connected to a support structure;
• and
• a docking device comprising a plurality of launch fixture slots configured to receive the docking interfaces of the plurality of launch fixtures, respectively, thereby securing the plurality of launch fixtures onto the launch fixture base, wherein the launch fixture slots are slanted at an angle relative to a main axis of the support structure that reduces mechanical constraints on the optical fibers.