Near-field tailored imaging optics for coupling ultra-bright light sources into optical fibers

Doron Nakar; Daniel Feuermann; Jeffrey M. Gordon

doi:10.1117/12.613079

20 August 2005 Near-field tailored imaging optics for coupling ultra-bright light sources into optical fibers

Doron Nakar, Daniel Feuermann, Jeffrey M. Gordon

Proceedings Volume 5942, Nonimaging Optics and Efficient Illumination Systems II; 59420I (2005) https://doi.org/10.1117/12.613079
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We explore compact, imaging (aplanatic) designs capable of reconstituting the power density of ultra-bright lamps at a remote target, with specific application to optical fiber light transport. The solutions presented here, for concentrating incoherent light from an extended near-field source, closely approach the thermodynamic limit for optical performance at high collection efficiency, as confirmed with raytrace simulations. Our investigations are motivated by the prospect of arc-discharge lamps as effective alternatives to lasers for many surgical procedures where high intensity heating rather than monochromaticity is needed. Additional applications include LED-fiber and fiber-fiber coupling, as well as projection systems. Consideration is restricted to pure reflective (mirrored) systems since refractive elements can introduce inadmissibly large chromatic aberrations. The tailored aplanatic mirror contours constitute monotonic functions that can be solved analytically, which facilitates rapid surveying of a wide range of design options. Several near-field designs suitable for coupling high numerical aperture light sources into optical fibers are presented.

Citation Download Citation

Doron Nakar, Daniel Feuermann, and Jeffrey M. Gordon "Near-field tailored imaging optics for coupling ultra-bright light sources into optical fibers", Proc. SPIE 5942, Nonimaging Optics and Efficient Illumination Systems II, 59420I (20 August 2005); https://doi.org/10.1117/12.613079

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