Abstract: A securing system for a luminaire can include a first cable that is configured to be disposed at least partially within a cavity of the luminaire. The securing system can also include a first securing mechanism that receives a first portion of the first cable, where the first securing mechanism is coupled to a first component of the luminaire, where the first securing mechanism has a motile setting and a non-motile setting. The securing system can further include a second securing mechanism that receives a second portion of the first cable, where the second securing mechanism is coupled to a second component of the luminaire. The first securing mechanism, when in the non-motile setting, can secure the first component and the second component in a fixed position relative to each other using the first cable.

Abstract: Methods and apparatus, including computer program products, for locating a function call site in a code segment of a running application, the code segment including a plurality of instructions. The call site is the location of an invocation of a function and includes a first reference, the first reference being a reference to a first dispatcher. The call site in the code segment is modified by replacing the first reference with a second reference, the second reference being a reference to second dispatcher, the second dispatcher different from the first dispatcher.

Abstract: The present invention provides a modular controller that connects to irrigation modules with varying station terminals and a standard footprint size. Additionally, the modular controller includes surge protection options, wireless communication with PDA's and other external devices, no required position for each controller module to be connected, immediate display of station modules on the LCD display, retention of a water program if module is removed, communications module for flow monitoring, a modular transformer, rain sensor receiver within the housing, an improved 9-volt batter holder, and other aspects described in the present application.

Abstract: The present invention provides a modular controller that connects to irrigation modules with varying station terminals and a standard footprint size. Additionally, the modular controller includes surge protection options, wireless communication with PDA's and other external devices, no required position for each controller module to be connected, immediate display of station modules on the LCD display, retention of a water program if module is removed, communications module for flow monitoring, a modular transformer, rain sensor receiver within the housing, an improved 9-volt batter holder, and other aspects described in the present application.

Abstract: The present invention provides a modular controller that connects to irrigation modules with varying station terminals and a standard footprint size. Additionally, the modular controller includes surge protection options, wireless communication with PDA's and other external devices, no required position for each controller module to be connected, immediate display of station modules on the LCD display, retention of a water program if module is removed, communications module for flow monitoring, a modular transformer, rain sensor receiver within the housing, an improved 9-volt batter holder, and other aspects described in the present application.

Abstract: The present invention provides a modular controller that connects to irrigation modules with varying station terminals and a standard footprint size. Additionally, the modular controller includes surge protection options, wireless communication with PDA's and other external devices, no required position for each controller module to be connected, immediate display of station modules on the LCD display, retention of a water program if module is removed, communications module for flow monitoring, a modular transformer, rain sensor receiver within the housing, an improved 9-volt batter holder, and other aspects described in the present application.

Abstract: Methods and apparatus, including computer program products, for locating a function call site in a code segment of a running application, the code segment including a plurality of instructions. The call site is the location of an invocation of a function and includes a first reference, the first reference being a reference to a first dispatcher. The call site in the code segment is modified by replacing the first reference with a second reference, the second reference being a reference to second dispatcher, the second dispatcher different from the first dispatcher.

Abstract: The invention provides a photonic structure comprising a first region (3) formed from a material having a first refractive index; and an array of sub-regions (5) formed in the first region, each sub-region having a refractive index different to the first refractive index; wherein the array of sub-regions (5) can be defined by a plurality of rows and columns, wherein the position of each sub-region relative to adjacent sub-regions in each row and the properties of the sub-regions across each row are defined by parameters of a first type, and the position of each row relative to adjacent rows, and the properties of the sub-regions along each column are defined by parameters of a second type; and wherein at least one parameter of a first type and at least one parameter of the second type is varied systematically and independently across the array. The present invention gives rise to structures with photonic band structures that can be tailored to a particular application.

Abstract: A waveguide structure according to the invention comprises a core layer (10), having a refractive index ncore, and an array of rods (11) in the core layer having a refractive index nrods. The refractive indices satisfy the inequality: nrods>ncore. In a planar waveguide structure buffer (12) and cladding (13) layers are included, having a refractive index nbuffer and ncladding respectively. The refractive indices then satisfy the inequality: nrods>ncore>ncladding and nbuffer. This condition provides greater vertical confinement of the E-field of an optical signal passing through the waveguide. Furthermore, it allows waveguides to be formed of a glassy material having a similar refractive index and core dimensions to that of a fiber. A high refractive index contrast within the photonic crystal region is used while totally eliminating the need for mode conversion to launch light in and out of the waveguide.

Abstract: A waveguide structure (200) according to the invention comprises a core layer (210), a cladding layer (206) and a buffer layer (208). Sub-regions (204) are formed in the cladding layer (206) but not in the core layer (210). In one dimensional applications the sub-regions are slots: in two dimensional applications the sub-regions are rods. The rods or slots may be air-filled or filled with an in-fill material, (e.g. Si). The in-fill material, if present, enhances the contrast in dielectric constant between sub-regions (204) and the core layer (210). Sub-regions (204) may furthermore be formed in the portion of the buffer layer neighbouring the core layer. Slots or rods in the buffer may be air-filled or filled by an in-fill material. Substantially complete confinement of the mode in the core can be assured while still maintaining the ability to interact with the field within the photonic band structure region.

Abstract: An optical waveguide structure according to the invention comprises a core layer having a first refractive index ncore, an array of sub-regions within the core having a second refractive index nrods, the array of sub-regions giving rise to a photonic band structure within the core layer, and a cladding layer adjacent to the core layer having a refractive index ncladding, wherein: ncore>nrods[[?]]?ncladding and ncore?nrods>0.1. The structure of the present invention is less lossy than prior waveguide structures having photonic band structure regions. The out of plane divergence of light in the sub-regions is reduced as compared with air holes which are typically used in photonic crystal structures. As a result more light is coupled back into the core at the sub-region/core interface. Coupling of light into the buffer layer is also reduced. Furthermore, there are added advantages over the prior art associated with the fabrication of these structures.

Abstract: There is provided a planar waveguide structure (700) having a first core layer (708), a second core layer (704) and a cladding layer (706), wherein the cladding layer (706) is disposed between the first core layer (708) and the second core layer (704) to form an inter-core cladding layer (706). The inter-core cladding layer (706) comprises a first region (722) having a first refractive index and an array of sub-regions (724) formed therein having a second refractive index. The subregions (724) do not extend into either the first or the second core layer, and they give rise to a photonic band structure region, which is effective to perturb an evanescent field of an optical signal propagating through the core layers.

Abstract: The present invention provides a modular controller that connects to irrigation modules with varying station terminals and a standard footprint size. Additionally, the modular controller includes surge protection options, wireless communication with PDA's and other external devices, no required position for each controller module to be connected, immediate display of station modules on the LCD display, retention of a water program if module is removed, communications module for flow monitoring, a modular transformer, rain sensor receiver within the housing, an improved 9-volt batter holder, and other aspects described in the present application.

Abstract: The invention provides a photonic structure comprising a first region (3) formed from a material having a first refractive index; and an array of sub-regions (5) formed in the first region, each sub-region having a refractive index different to the first refractive index; wherein the array of sub-regions (5) can be defined by a plurality of rows and columns, wherein the position of each sub-region relative to adjacent sub-regions in each row and the properties of the sub-regions across each row are defined by parameters of a first type, and the position of each row relative to adjacent rows, and the properties of the sub-regions along each column are defined by parameters of a second type; and wherein at least one parameter of a first type and at least one parameter of the second type is varied systematically and independently across the array. The present invention gives rise to structures with photonic band structures that can be tailored to a particular application.

Abstract: There is provided a non-linear optical device for enhancing the bandwidth accessible in the nonlinear generation of an optical signal. The device comprises a planar optical waveguide, the planar optical waveguide being operative to generate an optical output from an optical input having an input bandwidth by means of a non-linear optical process, the optical output having a wavelength within an accessible bandwidth, wherein the planar optical waveguide is operative to enhance the accessible bandwidth such that the ratio of the accessible bandwidth to the input bandwidth is at least 4. The device is particularly applicable to broad optical continuum generation, but may also be used in a parametric oscillator or amplifier arrangement with broad tuning range. The planar waveguide geometry permits easy integration in more complex photonic integrated circuits such as a Michelson interferometer for low coherence interferometry based optical coherence tomography.

Abstract: There is provided a non-linear optical device for enhancing the bandwidth accessible in the nonlinear generation of an optical signal. The device comprises a planar optical waveguide, the planar optical waveguide being operative to generate an optical output from an optical input having an input bandwidth by means of a non-linear optical process, the optical output having a wavelength within an accessible bandwidth, wherein the planar optical waveguide is operative to enhance the accessible bandwidth such that the ratio of the accessible bandwidth to the input bandwidth is at least 4. The device is particularly applicable to broad optical continuum generation, but may also be used in a parametric oscillator or amplifier arrangement with broad tuning range.

Abstract: A method of delivering a parcel to a recipient is disclosed. The method includes the steps of: a) attempting a delivery at a primary location; and b) if the delivery fails, delivering the parcel to a preferred redirection location, where the preferred redirection location is selected by the recipient.

Abstract: There is provided a planar waveguide structure (700) having a first core layer (708), a second core layer (704) and a cladding layer (706), wherein the cladding layer (706) is disposed between the first core layer (708) and the second core layer (704) to form an inter-core cladding layer (706). The inter-core cladding layer (706) comprises a first region (722) having a first refractive index and an array of sub-regions (724) formed therein having a second refractive index. The subregions (724) do not extend into either the first or the second core layer, and they give rise to a photonic band structure region, which is effective to perturb an evanescent field of an optical signal propagating through the core layers.

Abstract: A waveguide structure (200) according to the invention comprises a core layer (210), a cladding layer (206) and a buffer layer (208). Sub-regions (204) are formed in the cladding layer (206) but not in the core layer (210). In one dimensional applications the sub-regions are slots: in two dimensional applications the sub-regions are rods. The rods or slots may be air-filled or filled with an in-fill material, (e.g. Si). The in-fill material, if present, enhances the contrast in dielectric constant between sub-regions (204) and the core layer (210).