Optically controlled fiber-optic micro-gripper for sub-millimeter objects.

A miniature, fully optically controlled, dielectric, opto-thermally actuated tweezer/micro-gripper that is suitable for the manipulation of small objects is presented. The tweezer/micro-gripper is formed at the tip of an optical fiber and utilizes a mid-power laser diode for its actuation. The manipulation of small objects such as short pieces of optical fibers is demonstrated. Small dimensions, fully dielectric design, non-electric actuation, remote operation through the fiber, and good harsh environment compatibility (chemical, radiation, and temperature) might provide opportunities for micromanipulation in a system and areas where current solutions are inadequate.