A medical device includes an elongate member having a proximal end, a distal end, a body extending between the proximal end and the distal end, and a lumen located within the body, and a rotor rotatably supported in the lumen, the rotor having an opening for allowing light to pass theretherough, wherein the rotor is rotatable about an axis that extends through the opening, wherein the elongate member further has a region for allowing an output light to exit therethrough.