Abstract
Multiphoton endoscopy through optical fibers has been traditionally based on a single mode fiber bundle or double clad fibers whose single mode core is used to deliver illumination. A lens placed at the distal tip of the fiber focuses the light on the specimen and the fluorescence is collected through the fiber bundle or the multimode cladding [1]. In the case of the fiber bundle, the image is pixelated by the bundles. For the dual clad fiber, a scanning mechanism is required at the distal tip to move the focused spot over the field of view.
© 2015 IEEE
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