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Tracking spatial modes in nearly hemispherical microcavities
2008 10th Anniversary International Conference on Transparent Optical Networks, 2007We measure experimentally the spatial intensity profiles and resonant frequencies of the transverse modes of nearly hemispherical microcavities with cavity length and mirror curvatures below 10 microm. These resonators possess axially symmetric Gauss-Laguerre-like modes, but do not display the frequency degeneracies typical of large-scale optical ...
Pennington, R.C. +3 more
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Spatial light modulator phase calibration based on spatial mode projection
Applied Optics, 2019Spatial light modulators (SLMs), which are devices used to manipulate the phase of an incident wave front, are prolific in fields such as optical trapping, dynamic diffractive optical elements, and display technology. Of the many challenges inherent to using SLMs, one of the most ubiquitous is the calibration of the device's phase-shifting mechanism ...
Katherine Isabel T. Remulla +1 more
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Optimization of spectrally and spatially flexible optical networks with spatial mode conversion
2018 International Conference on Optical Network Design and Modeling (ONDM), 2018Spectrally and spatially flexible optical networks (SS-FONs), which combine space division multiplexing (SDM) with flexible-grid elastic optical network (EON) technologies, bring additional complexity to network control due to the handling of a larger number of spatial modes in SDM than in conventional EONs.
Miroslaw Klinkowski +2 more
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Spatial modes in magnetoencephalography spatio-temporal patterns
Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.03CH37439), 2004In this paper, spatio-temporal patterns observed in brain magnetic activity have been characterized as a superposition of basis spatial modes. The proposed approach first isolates spatial modes by using spatial independent component methodology and then classifies them by performing a clustering strategy.
G. BUCOLO +5 more
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SPATIAL LOCKING OF LASER MODES
Soviet Journal of Quantum Electronics, 1973It is shown that coherent wave fields in the form of a locked superposition of oscillations of degenerate transverse modes can be established in a laser resonator. This approach can be used to reduce the number of frequencies emitted by the laser and to improve the angular divergence of the output radiation.
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Spatially Distributed Networked Sliding Mode Control
IEEE Control Systems Letters, 2019A robust control algorithm for spatially distributed multi-input networked control systems with time-varying transmission delays is proposed. In order to increase the dependability of the spatially distributed scheme, a pivotal requirement to the algorithm is the exclusive usage of locally available information in each controller node.
Jakob Ludwiger +2 more
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National Fiber Optic Engineers Conference, 2012
With the goal of establishing mode division multiplexing techniques, we performed experiments on the multi-excitation of spatial modes by combining first-order diffracted beams generated from hologram patterns indicated in different regions using a single SLM.
Atsushi Okamoto +4 more
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With the goal of establishing mode division multiplexing techniques, we performed experiments on the multi-excitation of spatial modes by combining first-order diffracted beams generated from hologram patterns indicated in different regions using a single SLM.
Atsushi Okamoto +4 more
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CLEO 2024
We expand on classical single pixel camera methods using a set of structured spatial masks to image quantum field spatial modes in a combination of a single squeezed and thermal mode via quadrature homodyne measurements.
Charris Gabaldon +6 more
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We expand on classical single pixel camera methods using a set of structured spatial masks to image quantum field spatial modes in a combination of a single squeezed and thermal mode via quadrature homodyne measurements.
Charris Gabaldon +6 more
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Spatial entanglement and optimal single-mode coupling
Physical Review A, 2009We theoretically and experimentally show that the single-mode collection efficiency of spontaneous parametric down-conversion photons is inversely related to the photons’ degree of spatial entanglement.
R. S. Bennink +3 more
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Self-starting mode locking by multi-spatial-mode active waveguiding
Optics Letters, 2006We demonstrate a novel principle of self-starting mode locking in a compact semiconductor laser diode, where the needed saturable loss is provided by spatial effects resulting from multi-spatial-mode active waveguiding. The demonstrated device operates over a 1.54 microm wavelength range and has a repetition rate of 47 GHz.
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