We present an approach to laser scanning endomicroscopy that requires no moving parts and can be implemented with no distal scanners or optics, permitting extremely compact endoscopic probes to be developed. Our approach utilizes a spatial light modulator to correct for phase variations across a fiber imaging bundle and to encode for arbitrary wavefronts at the distal end of the fiber bundle. Thus, it is possible to realize both focusing and beam scanning at the output of the fiber bundle with no distal components. We present proof of principle results to illustrate three-dimensional scanning of the focal spot and exemplar images of a United States Air Force resolution test chart.
© 2011 Optical Society of America
Original Manuscript: December 23, 2010
Revised Manuscript: March 7, 2011
Manuscript Accepted: March 18, 2011
Published: April 29, 2011
Vol. 6, Iss. 6 Virtual Journal for Biomedical Optics
Alex J. Thompson, Carl Paterson, Mark A. A. Neil, Chris Dunsby, and Paul M. W. French, "Adaptive phase compensation for ultracompact laser scanning endomicroscopy," Opt. Lett. 36, 1707-1709 (2011)