Abstract: Automatically deploying a configured system into a computing environment (such as a cloud computing environment) for execution therein comprises obtaining a configured architecture model describing the configured system, and iteratively evaluating the model to deploy pre-built components for the system and to create and enable a development environment in the computing environment for development of custom-built components needed for the system according to the model. The automated deployment processing further comprises automatically configuring the system; determining a proper installation sequence; allocating resources in the target environment; and installing the required tools and other software that will be needed for execution once the components of the system are deployed. Component metadata is used during the deployment, enabling automated consideration of various factors such as whether component dependencies, resource requirements, and compatibility issues are met.

Abstract: The configuration of a system is programmatically determined. More particularly, these determinations are made using architecture artifacts that describe requirements of the system (which may be comprised of software, hardware, services, or some combination thereof), where these requirements are iteratively compared to characteristics of available components. A percentage of match is preferably computed, thus allowing for complete matches as well as partial matches. A weighting factor may be applied to attributes, effectively prioritizing attributes in view of their relative importance in the assembled system. When more than one component is a candidate for meeting a particular requirement, user input may be obtained to select one of the candidates. One or more attributes (such as cost information) of each candidate, including how well that candidate matched requirements, may be included for each candidate presented for user selection. The model may be updated and re-evaluated iteratively.

Abstract: The configuration of a system is programmatically determined. More particularly, these determinations are made using architecture artifacts that describe requirements of the system (which may be comprised of software, hardware, services, or some combination thereof), where these requirements are iteratively compared to characteristics of available components. A percentage of match is preferably computed, thus allowing for complete matches as well as partial matches. A weighting factor may be applied to attributes, effectively prioritizing attributes in view of their relative importance in the assembled system. When more than one component is a candidate for meeting a particular requirement, user input may be obtained to select one of the candidates. One or more attributes (such as cost information) of each candidate, including how well that candidate matched requirements, may be included for each candidate presented for user selection. The model may be updated and re-evaluated iteratively.

Abstract: Automatically deploying a configured system into a computing environment (such as a cloud computing environment) for execution therein comprises obtaining a configured architecture model describing the configured system, and iteratively evaluating the model to deploy pre-built components for the system and to create and enable a development environment in the computing environment for development of custom-built components needed for the system according to the model. The automated deployment processing further comprises automatically configuring the system; determining a proper installation sequence; allocating resources in the target environment; and installing the required tools and other software that will be needed for execution once the components of the system are deployed. Component metadata is used during the deployment, enabling automated consideration of various factors such as whether component dependencies, resource requirements, and compatibility issues are met.

Abstract: This disclosure is generally concerned with optical systems that employ guided-mode grating resonant reflector filters (“GMGRF”) to facilitate wavelength and/or polarization selectivity in the optical system. In one example, an optical system is provided that includes first and second tunable detectors. Each of the tunable detectors includes a GMGRF that is tuned to select a corresponding optical wavelength and/or polarization of an optical data channel, such that the optical wavelength and/or polarization associated with the first tunable detector is different from the optical wavelength and/or polarization associated with the second tunable detector. In this way, an array of tunable detectors can be employed to select some or all of the wavelengths and/or polarizations of an optical data signal having a plurality of data channels.

Abstract: In general, the present invention allows one to define both a hierarchy with one or more peers and no parents (e.g., one or more blades and no chassis) and a hierarchy with one or more peers and a parent (e.g., one or more blades and a chassis) as long as the relationships are valid. Rather than relying on a user's a priori knowledge of the hierarchical relationships, this invention allows a user to select any starting point and then drive in any desired direction. Despite this flexibility, the invention still allows rules for permissible relationships to be enforced. Thus, driving is limited by the relationships extant in the underlying data, or the known combining rules.

Abstract: A vertical cavity surface-emitting laser (VCSEL) is disclosed. The VCSEL includes a layer that at least partially defines an optical cavity having an optical axis. The VCSEL further includes a resonant reflector layer extending across at least part of the optical cavity. The resonant reflector layer has a refractive index that does not abruptly change laterally across the optical cavity. The refractive index of the resonant reflector layer includes contributions from a first material having a first refractive index and a second material having a second refractive index. At least one of the first material and the second material includes a polymer.

Abstract: A requester-side autonomic governor is provided for a requester configured to send service requests to a service provider. For example, the requester and service provider may be disposed in a Service Oriented Architecture (SOA) architected system. A feedback loop, preferably a monitor portion of a Monitor, Analyze, Plan, and Execute (MAPE) loop, is configured to monitor responses to service requests. An autonomic governor mechanism limits the type and/or number of concurrent service requests according to a resource pool scheme, and dynamically adjusts a resource threshold of the resource pool scheme based on information provided by the feedback loop. In one embodiment, the resource threshold is reduced if more than a predetermined number of service requests generated time-outs, and is increased if more than a predetermined number of service requests are being held awaiting available pool resources and less than a predetermined number of service requests generated time-outs.

Abstract: A requester-side autonomic governor is provided for a requester configured to send service requests to a service provider. For example, the requester and service provider may be disposed in a Service Oriented Architecture (SOA) architected system. A feedback loop, preferably a monitor portion of a Monitor, Analyze, Plan, and Execute (MAPE) loop, is configured to monitor responses to service requests. An autonomic governor mechanism limits the type and/or number of concurrent service requests according to a resource pool scheme, and dynamically adjusts a resource threshold of the resource pool scheme based on information provided by the feedback loop. In one embodiment, the resource threshold is reduced if more than a predetermined number of service requests generated time-outs, and is increased if more than a predetermined number of service requests are being held awaiting available pool resources and less than a predetermined number of service requests generated time-outs.

Abstract: In general, the present invention allows one to define both a hierarchy with one or more peers and no parents (e.g., one or more blades and no chassis) and a hierarchy with one or more peers and a parent (e.g., one or more blades and a chassis) as long as the relationships are valid. Rather than relying on a user's a priori knowledge of the hierarchical relationships, this invention allows a user to select any starting point and then drive in any desired direction. Despite this flexibility, the invention still allows rules for permissible relationships to be enforced. Thus, driving is limited by the relationships extant in the underlying data, or the known combining rules.

Abstract: Methods are disclosed for forming optoelectronic devices. In one example of such a method, a substrate is provided and a partially conductive bottom mirror formed thereon. An active region is then formed on the bottom mirror, and a top mirror formed on the active region. A gain guide is then formed in the top mirror. Finally, a substantially dielectric isolation layer, as well as a resonant reflector, are formed on the top mirror. The isolation layer is interposed between the resonant reflector and the top mirror, and the isolation layer is formed so as to substantially prevent energy in an evanescent tail of a guided mode associated with the resonant reflector from entering the top mirror.

Abstract: In one exemplary embodiment of the invention, a method is employed that is directed to forming a resonant reflector on an optoelectronic device, such as a semiconductor laser for example. The exemplary method involves depositing a first material layer on the top layer of the optoelectronic device, where the first material layer having a refractive index and a thickness of about an odd multiple of a quarter of a wavelength to which the optoelectronic device is tuned. A patterned region is then created that extends at least partially into the first material layer. Selected patterned regions are at least partially filled with a second material that has a refractive index that is greater than the refractive index of the first material layer. Finally, a third layer, having a refractive index greater than the refractive index of the first material layer, is deposited immediately adjacent the first material layer.

Abstract: Methods for sealing or passivating the edges of chips such as vertical cavity surface emitting lasers (VCSEL) is disclosed. One method includes oxidizing the edges of die at the wafer level prior to cutting the wafer into a plurality of die. This may be accomplished by etching a channel along the streets between die, followed by oxidizing the channel walls. The oxidation preferably oxidizes the aluminum bearing layers that are exposed by the channel walls inward for distance. Aluminum bearing layers, including AlAs and AlGaAs, may be oxidized to a stable native oxide that is resistant to further oxidation by the environment. After oxidation, the wafer can be cut along the channels into a number of die, each having a protective oxide layer on the side surfaces.

Abstract: An optical system that includes at least two optical emitters and/or optical receivers that have a corresponding guided-mode grating resonant reflector filter (GMGRF). Each GMGRF is preferably tuned to a unique wavelength and/or polarization by adjusting selected GMGRF parameters, such as the grating period and/or the thickness of the grating or other layers. One advantage of this construction is that the various optical emitters and/or optical receivers may be finely tuned, often lithographically, to provide fine wavelength resolution and/or polarization control. For WDM and WDD applications, this may allow closely-spaced optical transmission channels, and may simplify the wavelength-selective WDM and WDD operations required for simultaneous transmission of the channels.

Abstract: Methods are disclosed for forming optoelectronic devices. In one example of such a method, a substrate is provided and a partially conductive bottom mirror formed thereon. An active region is then formed on the bottom mirror, and a top mirror formed on the active region. A gain guide is then formed in the top mirror. Finally, a substantially dielectric isolation layer, as well as a resonant reflector, are formed on the top mirror. The isolation layer is interposed between the resonant reflector and the top mirror, and the isolation layer is formed so as to substantially prevent energy in an evanescent tail of a guided mode associated with the resonant reflector from entering the top mirror.

Abstract: In one exemplary embodiment of the invention, a method is employed that is directed to forming a resonant reflector on an optoelectronic device, such as a semiconductor laser for example. The exemplary method involves depositing a first material layer on the top layer of the optoelectronic device, where the first material layer having a refractive index and a thickness of about an odd multiple of a quarter of a wavelength to which the optoelectronic device is tuned. A patterned region is then created that extends at least partially into the first material layer. Selected patterned regions are at least partially filled with a second material that has a refractive index that is greater than the refractive index of the first material layer. Finally, a third layer, having a refractive index greater than the refractive index of the first material layer, is deposited immediately adjacent the first material layer.

Abstract: A laser is provided that includes a top mirror layer upon which a resonant reflector is situated. The resonant reflector includes a first material layer having a thickness that is about an odd multiple of a quarter of the wavelength to which the laser is tuned. Patterned regions extend into the first material layer so that the thickness of the first material layer in the patterned regions is reduced. Some patterned regions are at least partially filled with a second material having a refractive index that is greater than the refractive index of the first material layer. The second material also has a thickness of about an odd multiple of a quarter of the wavelength to which the laser is tuned. Finally, a third layer positioned immediately adjacent the first material layer has a refractive index that is greater than the refractive index of the first material layer.

Abstract: An optoelectronic device that provides isolation between a resonant reflector and an adjacent conducting layer of the optoelectronic device. Isolation may be accomplished by providing a buffer or cladding layer between the resonant reflector and the adjacent conducting layer of the optoelectronic device. The cladding or buffer layer is preferably sufficiently thick, or has a sufficiently low refractive index relative to the refractive index of the waveguide of the resonant reflector, to substantially prevent energy in the evanescent tail of the guided mode in the waveguide from entering the adjacent conductive layer of the optoelectronic device.

Abstract: An electron beam pumped semiconductor laser screen and an associated fabrication method are described which provide a display screen that has a relatively long operating lifetime, is less expensive to produce, and operates at lower electron voltages and near room temperature conditions. The laser screen includes a multi quantum well active gain region having quantum wells of GaInP and barrier layers of (AlxGa1−x)InP, thereby permitting operation in the visible, red spectrum. Moreover, the first layer epitaxially grown on the sacrificial substrate is an etch stop layer of (GaxAl1−x)yIn1−yP that acts as an etch stop during the subsequent etching of the sacrificial substrate and may also be used to adjust the cavity length to the correct resonance condition. The laser screen also includes an output mirror having alternating layers of two different compositions of GaxAl1−xAs that are epitaxially grown on the multi quantum well active gain region.

Abstract: Improved resonant reflectors are provided for increased mode control of optoelectronic devices. Some of the resonant reflectors provide improved mode control while not requiring significant additional processing steps, making them ideal for commercial applications. Other resonant reflectors reduce or eliminate abrupt changes in the reflectively of the resonant reflector across an optical cavity of an optoelectronic device, allowing them to reduce or eliminate undesirable diffraction effects that are common in many resonant reflectors.