Abstract: In various embodiments, a spring is utilized to fix an optic to a mechanical mount in a laser system. Such springs may consist of a single length of elastic material having first and second ends. The length of elastic material may define first and second off-center bends providing first and second base portions, as well as a central bend that is generally U-shaped and that defines first and second contact portions. The first and second contact portions are opposed to each other across the central bend to thereby resist compression of the first and second contact portions toward the first and second base portions.