TY  - JOUR
A1  - Bescherer, Klaus
A1  - Munzke, Dorit
A1  - Reich, Oliver
A1  - Loock, Hans-Peter
T1  - Fabrication and modeling of multimode fiber lenses
JF  - Applied optics
N2  - We report on the fabrication, modeling, and experimental verification of the emission of fiber lenses fabricated on multimode fibers in different media. Concave fiber lenses with a radius of 150 mu m were fabricated onto a multimode silica fiber (100 mu m core) by grinding and polishing against a ruby sphere template. In our theoretical model we assume that the fiber guides light from a Lambertian light source and that the emission cone is governed solely by the range of permitted emission angles. We investigate concave and convex lenses at 532 nm with different radii and in a variety of surrounding media from air (n(0) = 1.00) to sapphire (n(0) = 1.77). It was found that noticeable focusing or defocusing effects of a silica fiber lens in ethanol (n(0) = 1.36) and dimethyl sulfoxide (DMSO) (n(0) = 1.48) are only observed when the fiber lens radius was less than the fiber diameter.
Y1  - 2013
U6  - https://doi.org/10.1364/AO.52.000B40
SN  - 1559-128X
SN  - 2155-3165
VL  - 52
IS  - 4
SP  - B40
EP  - B45
PB  - Optical Society of America
CY  - Washington
ER  -