Abstract: An optical system may include a substrate that includes an etched region and a laser-induced breakage region. The optical system may further include an optical waveguide disposed on the substrate. The optical system may further include an optical device coupled to the optical waveguide within the etched region. The laser-induced breakage region may produce a predetermined coupling gap between the optical waveguide and the optical device.

Abstract: The invention relates to dairy products with strawberry having specific anthocyanins profiles that allow color-related improvements.

Abstract: A post-assembly wavelength-tuning method for an optical filter provided along an optical fiber mounted under tension in a packaging assembly is provided. The packaging assembly includes at least one packaging component mechanically coupled to the optical fiber and optically accessible from outside of the packaging assembly. The method includes a step of measuring a post-assembly spectral response of the optical filter and determining therefrom a spectral deviation with respect to a target spectral response. The method also includes a step of forming one or more laser-welded zones on the packaging component so as to cause a permanent deformation thereof. The permanent deformation induces a modification in length of the optical fiber, thereby changing the post-assembly spectral response of the optical filter to compensate for the measured spectral deviation.

Abstract: A connectorized optical chip assembly connectable to an external optical fiber having a fiber connector is provided. The connectorized optical chip assembly includes a substrate, an optical chip having an on-chip optical waveguide and a connectorized interface. The connectorized interface includes an optical coupling element mounted in optical alignment with the on-chip optical waveguide. The connectorized interface includes a chip connector engaging the optical coupling element and configured for mating with the fiber connector of the external optical fiber, so as to provide an optical coupling of light between the optical coupling element and the external optical fiber. The connectorized optical chip assembly also includes a mechanical support structure supporting the connectorized interface onto the substrate. Preferably, the components of the connectorized optical assembly are made of materials heat resistant to temperatures used to melt solder in surface mount processes.

Abstract: A post-assembly wavelength-tuning method for an optical filter provided along an optical fiber mounted under tension in a packaging assembly is provided. The packaging assembly includes at least one packaging component mechanically coupled to the optical fiber and optically accessible from outside of the packaging assembly. The method includes a step of measuring a post-assembly spectral response of the optical filter and determining therefrom a spectral deviation with respect to a target spectral response. The method also includes a step of forming one or more laser-welded zones on the packaging component so as to cause a permanent deformation thereof. The permanent deformation induces a modification in length of the optical fiber, thereby changing the post-assembly spectral response of the optical filter to compensate for the measured spectral deviation.

Abstract: A toroidal engine that can be powered by a fuel/air mixture or by a compressed gas source. The toroidal engine uses one-way bearings to transfer torque generated in a toroidal chamber directly to a drive shaft. Pairs of pistons are mounted on two crank assemblies, which are concentric with the drive shaft. One-way bearings allow the crank assemblies to turn, one at a time, in one direction only. The crank assemblies are directly coupled to the drive shaft, which eliminates the need for complex gear and linkage arrangements. A system can be used with the toroidal engine to alternately stop the crank assemblies at a pre-determined position and to time the ignition of the engine.

Abstract: A toroidal engine that can be powered by a fuel/air mixture or by a compressed gas source. The toroidal engine uses one-way bearings to transfer torque generated in a toroidal chamber directly to a drive shaft. Pairs of pistons are mounted on two crank assemblies, which are concentric with the drive shaft. One-way bearings allow the crank assemblies to turn, one at a time, in one direction only. The crank assemblies are directly coupled to the drive shaft, which eliminates the need for complex gear and linkage arrangements. A system can be used with the toroidal engine to alternately stop the crank assemblies at a pre-determined position and to time the ignition of the engine.

Abstract: An optical coupling assembly for coupling light from an optical fiber including an angled tip into a planar waveguide via a waveguide coupling element is provided. In one embodiment, the optical fiber extends along the planar waveguide with the angled tip positioned such that light propagating in the optical fiber is coupled by the waveguide coupling element to propagate in the planar waveguide in counter propagation with respect to a fiber propagation direction. In another embodiment, the optical fiber includes a tapered peripheral portion tapering toward the angled tip and is disposed over the planar waveguide with the tapered peripheral portion extending therealong such that light propagating in the optical fiber is coupled to propagate in the planar waveguide with either forward or counter propagation. Embodiments of the present invention may be part of various photonic integrated circuits and may be manufactured more easily than known optical coupling assemblies.

Abstract: An optical coupling assembly for coupling light from an optical fiber including an angled tip into a planar waveguide via a waveguide coupling element is provided. In one embodiment, the optical fiber extends along the planar waveguide with the angled tip positioned such that light propagating in the optical fiber is coupled by the waveguide coupling element to propagate in the planar waveguide in counter propagation with respect to a fiber propagation direction. In another embodiment, the optical fiber includes a tapered peripheral portion tapering toward the angled tip and is disposed over the planar waveguide with the tapered peripheral portion extending therealong such that light propagating in the optical fiber is coupled to propagate in the planar waveguide with either forward or counter propagation. Embodiments of the present invention may be part of various photonic integrated circuits and may be manufactured more easily than known optical coupling assemblies.

Abstract: A process for preparing a stable and homogenous fruit preparation, includes the steps of: (i) preparing a fruit mixture by mixing fruit pieces, optionally in the presence of a fruit matrix, with sugar in an amount included between 10% and 60% by weight relative to the total weight of the fruit preparation, (ii) treating the fruit mixture obtained in step (i) at a temperature ranging between 40° C. and 90° C., and at a pressure from 50 mbar to 1000 mbar, during 15 to 90 minutes, so as to obtain a concentrated fruit preparation having a Brix degree at 20° C. ranging between 50° and 75°, (iii) optionally submitting the concentrated fruit preparation to a heat treatment, at a temperature ranging between 90° C. and 120° C., (iv) cooling the concentrated fruit preparation obtained in step (ii) or, when step (iii) is performed, cooling the concentrated fruit preparation obtained in step (iii), to storage temperature.

Abstract: A power efficient assembly is provided for applying a temperature gradient to a Fiber Bragg grating. The assembly includes inner and outer enclosures, the outer enclosure defining an insulation chamber around the inner enclosure. The respective ends of the inner and outer enclosures are in thermal contact. A heat exchange system, such as coiled resistive wires or thermo-electric coolers, applies different temperatures to the opposite ends of the outer enclosure.

Abstract: An enhanced motion behavior framework, in which an input is received from a user corresponding to an object to be animated and one or more animation parameters to be applied to the object, the one or more animation parameters are applied to the object, and an animation of the object is displayed based on the application of the one or more parameters to the object.

Abstract: A computer-implemented method is described including receiving input specifying an image frame from among a series of image frames, and automatically detecting one or more points in the specified image frame that would be suitable for tracking a point in the series of image frames. In addition, a computer-implemented method is described including choosing a first position of a point on a first image frame of a plurality of image frames, and displaying in a bounded region on the first image frame content relating to a second image frame of the plurality of image frames, wherein the content displayed in the bounded region includes a second position of the point at a different time than the first position of the point.

Abstract: A computer-implemented method is described including receiving input specifying an image frame from among a series of image frames, and automatically detecting one or more points in the specified image frame that would be suitable for tracking a point in the series of image frames. In addition, a computer-implemented method is described including choosing a first position of a point on a first image frame of a plurality of image frames, and displaying in a bounded region on the first image frame content relating to a second image frame of the plurality of image frames, wherein the content displayed in the bounded region includes a second position of the point at a different time than the first position of the point.

Abstract: A toroidal engine that can be powered by a fuel/air mixture or by a compressed gas source. The toroidal engine uses one-way bearings to transfer torque generated in a toroidal chamber directly to a drive shaft. Pairs of pistons are mounted on two crank assemblies, which are concentric with the drive shaft. One-way bearings allow the crank assemblies to turn, one at a time, in one direction only. The crank assemblies are directly coupled to the drive shaft, which eliminates the need for complex gear and linkage arrangements. A system can be used with the toroidal engine to alternately stop the crank assemblies at a pre-determined position and to time the ignition of the engine.

Abstract: Computer-implemented methods and media bearing instructions for matching movements of objects are described. In one example, the method can include determining a position of a first point in a first coordinate system, converting the position of the first point from the first coordinate system to a second coordinate system, performing a transformation on a second point in the second coordinate system, wherein the second point is initialized to a starting position in the second coordinate system, determining an ending position of the second point in the second coordinate system based on the transformation, converting the ending position of the second point in the second coordinate system to the first coordinate system, and associating the ending position of the second point in the first coordinate system to the first point in the first coordinate system, wherein the associating causes a transformation of the first point to match the transformation performed on the second point.

Abstract: A computer-implemented method is described including receiving input specifying an image frame from among a series of image frames, and automatically detecting one or more points in the specified image frame that would be suitable for tracking a point in the series of image frames. In addition, a computer-implemented method is described including choosing a first position of a point on a first image frame of a plurality of image frames, and displaying in a bounded region on the first image frame content relating to a second image frame of the plurality of image frames, wherein the content displayed in the bounded region includes a second position of the point at a different time than the first position of the point.

Abstract: A power efficient assembly is provided for applying a temperature gradient to a Fiber Bragg grating. The assembly includes inner and outer enclosures, the outer enclosure defining an insulation chamber around the inner enclosure. The respective ends of the inner and outer enclosures are in thermal contact. A heat exchange system, such as coiled resistive wires or thermo-electric coolers, applies different temperatures to the opposite ends of the outer enclosure.

Abstract: A colorless tunable dispersion compensator for compensating for chromatic dispersion in a multi-channel light signal is provided. The compensator includes a multi-channel Bragg grating extending along a waveguide. Dispersion tuning means, such as a temperature gradient inducing device, are provided for tuning the dispersion characteristics of the wavelength channels. Wavelength shifting means are also provided for uniformly shifting the central wavelengths of all channels independently of their dispersion characteristics. A uniform temperature inducing or strain applying assembly can be used for this purpose.

Abstract: Computer-implemented methods and media bearing instructions for matching movements of objects are described. In one example, the method can include determining a position of a first point in a first coordinate system, converting the position of the first point from the first coordinate system to a second coordinate system, performing a transformation on a second point in the second coordinate system, wherein the second point is initialized to a starting position in the second coordinate system, determining an ending position of the second point in the second coordinate system based on the transformation, converting the ending position of the second point in the second coordinate system to the first coordinate system, and associating the ending position of the second point in the first coordinate system to the first point in the first coordinate system, wherein the associating causes a transformation of the first point to match the transformation performed on the second point.