Abstract: An improved optical delivery assembly for an argon-ion or similar medical laser attaches to a wobble plate for thermal tracking and supports in a single integral subassembly an adjustable focusing lens, a beam splitter and associated light detector enabling selective display of power at both proximal and distal ends of the fiber, scattering and blocking shutters, a scattering shutter position sensor, shutter control solenoids, an optical plug position sensor and an optical plug mounting block adapted to interchangeably receive any of several types of optical fiber connecting plugs.