The experimental realization and field experience of a recently proposed solar fiber-optic mini-dishconcentrator are reported. The prototype is 200 mm in diameter. We have repeatably transported concentratedsunlight in a one-millimeter-diameter optical fiber and measured flux levels of 11–12kilosuns at a remotetarget (up to 20 m away). The prototype—assembled from off-the-shelf parts and customized items that relysolely upon existing commercial technologies—proved impervious to dust penetration and condensation. Forthe particular application of solar surgery, dielectric second-stage concentrators were designed and fiber tipswere sculpted to boost flux concentration by a factor of 2 to 4, for light extraction into air and tissue,respectively. Our findings strengthen the feasibility of the efficient and complete de-coupling of the collectionand remote delivery of highly concentrated solar radiation.2002 Elsevier Science Ltd. All rights reserved.