The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform
Kevin P. Thompson - One of the best experts on this subject based on the ideXlab platform.
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A new family of Optical Systems employing φ-polynomial surfaces
Optics express, 2011Co-Authors: Kyle Fuerschbach, Jannick P. Rolland, Kevin P. ThompsonAbstract:Unobscured Optical Systems have been in production since the 1960s. In each case, the unobscured system is an intrinsically rotationally symmetric Optical system with an offset aperture stop, a biased input field, or both. This paper presents a new family of truly nonsymmetric Optical Systems that exploit a new fabrication degree of freedom enabled by the introduction of slow-servos to diamond machining; surfaces whose departure from a sphere varies both radially and azimuthally in the aperture. The benefit of this surface representation is demonstrated by designing a compact, long wave infrared (LWIR) reflective imager using nodal aberration theory. The resulting Optical system operates at F/1.9 with a thirty millimeter pupil and a ten degree diagonal full field of view representing an order of magnitude increase in both speed and field area coverage when compared to the same design form with only conic mirror surfaces.
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A new generation of Optical Systems with φ-polynomial surfaces
International Optical Design Conference 2010, 2010Co-Authors: Kyle Fuerschbach, Kevin P. Thompson, Jannick P. RollandAbstract:Recent advances have made it viable to fabricate Optical surfaces that are not rotationally symmetric using a new generation of diamond-turning machines. These surfaces can greatly extend the field of view of Optical Systems.
Jürgen Jahns - One of the best experts on this subject based on the ideXlab platform.
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Ray-tracing analysis of planar Optical Systems
Diffractive Optics and Micro-Optics, 2000Co-Authors: Stefan Sinzinger, Ralf Bathel, Jürgen JahnsAbstract:Planar optics is a widely used concept for the microOptical integration of free-space Optical Systems. We introduce a ray-tracing tool for simulation and analysis of Optical Systems which is specifically matched to the folded geometry of planar Optical Systems.
Egor A Muljarov - One of the best experts on this subject based on the ideXlab platform.
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Resonant-state expansion applied to planar open Optical Systems
Physical Review A, 2012Co-Authors: Mark Doost, Wolfgang Werner Langbein, Egor A MuljarovAbstract:The resonant-state expansion (RSE), a rigorous perturbation theory of the Brillouin-Wigner type recently developed in electrodynamics[ E. A. Muljarov, W. Langbein and R. Zimmermann Europhys. Lett. 92 50010 (2010)], is applied to planar, effectively one-dimensional Optical Systems, such as layered dielectric slabs and Bragg reflector microcavities. It is demonstrated that the RSE converges with a power law in the basis size. Algorithms for error estimation and their reduction by extrapolation are presented and evaluated. Complex eigenfrequencies, electromagnetic fields, and the Green's function of a selection of Optical Systems are calculated, as well as the observable transmission spectra. In particular, we find that for a Bragg-mirror microcavity, which has sharp resonances in the spectrum, the transmission calculated using the RSE reproduces the result of the transfer- or scattering-matrix method.
Filipe Ferreira - One of the best experts on this subject based on the ideXlab platform.
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ICTON - Scanning-Based Chromatic Dispersion Estimation in Mode-Multiplexed Optical Systems
2019 21st International Conference on Transparent Optical Networks (ICTON), 2019Co-Authors: Ruby S. B. Ospina, Lailson F. Dos Santos, Darli A. A. Mello, Filipe FerreiraAbstract:Mode-multiplexed coherent Optical Systems emerge as an alternative to overcome the capacity limits of current Optical communication Systems. As in single-mode Systems, mode-multiplexed transmission experiences accumulated chromatic dispersion that must be estimated and compensated for by digital signal processing. Although scanning-based methods are widely used to estimate chromatic dispersion in single-mode Optical Systems, their performance in mode-multiplexed Systems has not been evaluated. In this paper, we study three scanning-based chromatic dispersion estimation techniques in the scope of mode-multiplexed Optical Systems. The results indicate that the algorithms loose accuracy for high levels of crosstalk and ASE noise. However, we show that the estimation criterion based on the delay-tap sampling method can be properly modified to significantly improve the estimation performance even in the worst scenario of crosstalk evaluated.
Kyle Fuerschbach - One of the best experts on this subject based on the ideXlab platform.
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A new family of Optical Systems employing φ-polynomial surfaces
Optics express, 2011Co-Authors: Kyle Fuerschbach, Jannick P. Rolland, Kevin P. ThompsonAbstract:Unobscured Optical Systems have been in production since the 1960s. In each case, the unobscured system is an intrinsically rotationally symmetric Optical system with an offset aperture stop, a biased input field, or both. This paper presents a new family of truly nonsymmetric Optical Systems that exploit a new fabrication degree of freedom enabled by the introduction of slow-servos to diamond machining; surfaces whose departure from a sphere varies both radially and azimuthally in the aperture. The benefit of this surface representation is demonstrated by designing a compact, long wave infrared (LWIR) reflective imager using nodal aberration theory. The resulting Optical system operates at F/1.9 with a thirty millimeter pupil and a ten degree diagonal full field of view representing an order of magnitude increase in both speed and field area coverage when compared to the same design form with only conic mirror surfaces.
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A new generation of Optical Systems with φ-polynomial surfaces
International Optical Design Conference 2010, 2010Co-Authors: Kyle Fuerschbach, Kevin P. Thompson, Jannick P. RollandAbstract:Recent advances have made it viable to fabricate Optical surfaces that are not rotationally symmetric using a new generation of diamond-turning machines. These surfaces can greatly extend the field of view of Optical Systems.