One described aspect is an optical fiber comprising: a fiber core that extends along a fiber axis, is configured to transmit a laser energy along the fiber axis, and terminates at a distal end； a first cladding that extends along the fiber axis, is adjacent to the fiber core, and terminates at a distal end； a coating that extends along the fiber axis and terminates at a distal end, wherein the coating is a gold coating； a second cladding that surrounds a portion of the gold coating along the fiber axis, and terminates at a distal end； an outer jacket that extends along the fiber axis and terminates at a distal end； and a fiber tip. Associated laser systems are also disclosed.
