Abstract: A waveguide coupler has a compression region and an expansion region for coupling light between a silicon waveguide and an optical fiber. The compression region receives light from the silicon waveguide and compresses an optical mode of the light. Light is transmitted from the compression region to an expansion region. The expansion region expands the light to have a larger cross section. Light is then transmitted to the optical fiber.

Abstract: Herein disclosed are systems, methods, and apparatus for controlling data usage statistics in network-connected devices. The ‘stats’ collection can be suppressed during minimum window periods, thereby reducing CPU and resources usage needed to processes the stats collection. Further, the minimum window can be a function of a link speed of the communication channel as well as a data usage proximity to a data usage warning limit. Further, stats collection can be triggered by expiration of a timer or data usage that meets a buffer threshold, where both the timer and threshold are selected based on the communication channel link speed, and buffer threshold is further a function of the data usage proximity to the warning limit.

Abstract: A secure identity framework has been designed that leverages a host device as a data collection point for four properties of a digital identity profile anchored to the collection point device, and uses the digital identity profile for multi-factor authentication. A public key infrastructure key exchange is conducted for secure identity framework members corresponding to collection and access of data of the digital identity profile. Subsequently, each application participating in the secure identity framework (“participant application”) acts as a certifying authority in additional, distinct PKI key exchanges. Based on the key exchanges, the secure identity framework locally generates application specific token sets based on the digital identity profile for authentication and authorization. The secure identity framework secures exchange of data among hardware and software components of the device with secured application programming interfaces (APIs).

Abstract: The present invention provides a test device for analyzing data communication of an electronic device, the test device comprising a data encoder configured to encode outgoing data according to a predefined physical protocol and output a respective outgoing physical signal to the electronic device, a data analyzer configured to receive an incoming physical signal from the electronic device and provide incoming data encoded in the incoming physical signal, a protocol emulator that is coupled to the data encoder and the data analyzer and that is configured to generate the outgoing data and decode the incoming data according to a predetermined application protocol, and a protocol analyzer that is coupled to the protocol emulator and that is configured to analyze a protocol conformance of the incoming data to the predefined application protocol. Further, the present invention provides a respective test method.

Abstract: A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder and a ridge. In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages having different widths at a given cross section.

Abstract: A node in an optical network may include a wavelength selective switch (WSS) and a processor. The wavelength selective switch may have a plurality of input ports and a plurality of output ports for routing and/or power-controlling of optical slices. The wavelength selective switch may have a plurality of control passbands, each control passband including a one or more optical slices. The processor may determine a passband group (PBG) having a plurality of PBG passbands, each of the plurality of PBG passbands corresponding to a particular control passband. The PBG may be used to translate control information, notifications, and/or instructions.

Abstract: A measurement device is disclosed for carrying out measurements on a system to be measured. For configuring the measurement software to be run by a processor controlling at least one measuring unit of the measurement device, the measurement device comprises a configuration unit which can configure the measurement software to comprise certain measurement features needed for the measurements. The configuration unit displays a configuration screen on a display unit wherein the configuration screen contains a plurality of user-selectable configuration options. This enables the user to receive information about the current software and hardware configuration and to be actively involved in the configuration process. The invention is particularly useful for RF sensitive measurement devices.

Abstract: A waveguide coupler has a compression region and an expansion region for coupling light between a silicon waveguide and an optical fiber. The compression region receives light from the silicon waveguide and compresses an optical mode of the light. Light is transmitted from the compression region to an expansion region. The expansion region expands the light to have a larger cross section. Light is then transmitted to the optical fiber.

Abstract: Systems, methods, and devices for adding an alien or native wavelength optical signal to a fiber optic line. A portion of a spectrum of the fiber optic line corresponding to the optical signal is blocked with a wavelength selective switch (WSS). The portion of the spectrum is gradually unblocked until a power of the optical signal measured after the WSS is equal to a predetermined level. If the power and characteristics of the optical signal after the WSS satisfy one or more criteria, the portion of the spectrum is further unblocked until the power of the optical signal measured at the output is equal to an operational level.

Abstract: A node in an optical network may include a wavelength selective switch (WSS) and a processor. The wavelength selective switch may have a plurality of input ports and a plurality of output ports for routing and/or power-controlling of optical slices. The wavelength selective switch may have a plurality of control passbands, each control passband including a one or more optical slices. The processor may determine a passband group (PBG) having a plurality of PBG passbands, each of the plurality of PBG passbands corresponding to a particular control passband. The PBG may be used to translate control information, notifications, and/or instructions.

Abstract: A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder made of crystalline silicon and a ridge made of non-crystalline silicon (e.g., amorphous silicon). In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages have different widths and/or thicknesses at a given cross section.

Abstract: Embodiments include methods and apparatuses for providing at least one signaling indication of a super-channel by a power controller in a Wavelength Division Multiplexing (WDM) system. The power controller may receive a service provisioning and a lock state from a network management entity. The power controller may receive, from an optical fabric unit, a fabric state that indicates whether a pass-band of the super-channel is provisioned. The power controller may receive the power level of the super-channel from a power monitoring unit. Based on the power level and attenuation level of the super-channel, the power controller may determine a ramp state that indicates whether the power level reached to a predetermined power. The power controller may determine an alarm state based on the power level. The power controller may determine the signaling indication based on the service provisioning, lock, fabric, ramp, and alarm states.

Abstract: A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder and a ridge. In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages having different widths at a given cross section.

Abstract: A waveguide coupler has a compression region and an expansion region for coupling light between a silicon waveguide and an optical fiber. The compression region receives light from the silicon waveguide and compresses an optical mode of the light. Light is transmitted from the compression region to an expansion region. The expansion region expands the light to have a larger cross section. Light is then transmitted to the optical fiber.

Abstract: Herein disclosed are systems, methods, and apparatus for controlling data usage statistics in network-connected devices. The ‘stats’ collection can be suppressed during minimum window periods, thereby reducing CPU and resources usage needed to processes the stats collection. Further, the minimum window can be a function of a link speed of the communication channel as well as a data usage proximity to a data usage warning limit. Further, stats collection can be triggered by expiration of a timer or data usage that meets a buffer threshold, where both the timer and threshold are selected based on the communication channel link speed, and buffer threshold is further a function of the data usage proximity to the warning limit.

Abstract: The present invention provides for a consolidated interface for flexible and customizable code deployment. Specifically, a centralized interface for management and automation of all phases of code deployment; including, but not limited to, code validation, validation approval, code deployment and data reporting/auditing. Code is automatically validated regardless of which standards or regulations apply to the programs/entities, platforms and/or applications associated with a code deployment. In addition, any known, or future known, code deployment tool and/or reporting/auditing tool may be used to conduct the deployment/migration and/or provide requisite reporting. Additionally, the systems herein disclosed are capable of integrating with any new/future platform, new/future software applications/packages and/or updates/revisions to applications/software packages without having to modify or reconfigure the disclosed system.

Abstract: Embodiments herein include methods and apparatuses for providing optical channel protection by a switching controller in an optical networking system. The switching controller may receive, from a light module, a digital fault status message that indicates whether a digital frame demodulated from an optical signal include a fault. The switching controller may receive from an Optical Supervisory Channel (OSC) module, an Optical Layer Defect Propagation (OLDP) status message that indicates an OSC status of the optical signal on a current optical path. The switching controller may receive, from an Optical Add Drop Multiplexer (OADM) module, an optical power status message that indicates a measured power level of the optical signal on the optical path. Based on at least one of the OLDP status, the optical power status, or the digital fault status message, the switching controller may determine the optical path as a working path or a protecting path.

Abstract: An intermediary can securely migrate a security credential between systems despite different underlying encoding technologies used for authentication by the system. This intermediary can also securely migrate an identity between different authentication technologies. A secure login interface program code that is digitally signed by the intermediary is provided in advance to devices that will source authentication requests. The interface program code is at least secure because it has been digitally signed by the intermediary. An instance of the secure interface program code directs authentication requests entered into the interface instance to the intermediary, which is at least identified by the digital signature. After a successful authentication by a destination system identified by the authentication request, the intermediary can migrate the authenticated security credential to a migration target.

Abstract: The present invention provides for a consolidated interface for flexible and customizable code deployment. Specifically, a centralized interface for management and automation of all phases of code deployment; including, but not limited to, code validation, validation approval, code deployment and data reporting/auditing. Code is automatically validated regardless of which standards or regulations apply to the programs/entities, platforms and/or applications associated with a code deployment. In addition, any known, or future known, code deployment tool and/or reporting/auditing tool may be used to conduct the deployment/migration and/or provide requisite reporting. Additionally, the systems herein disclosed are capable of integrating with any new/future platform, new/future software applications/packages and/or updates/revisions to applications/software packages without having to modify or reconfigure the disclosed system.

Abstract: The present invention and its embodiments are made to provide for dynamic hitless resizing in optical transport network without any identification of matching time slots by the Network Management System (NMS) or any control plane signaling including Generalised Multi Protocol Label Switching (GMPLS). An aspect of the invention provides for a method of hitless ODUflex connection resizing in an optical transport network by incrementing or decrementing the ODUflex connection between the nodes, based on an indication command given to a source node for bandwidth increase or decrease, by identifying and matching at least one time slot through Link Connection Resizing (LCR) protocol message exchanges. Another aspect of the invention provides for a method of hitless ODUflex connection resizing in an optical transport network by decrementing the matching time slot used for the incrementing operation, in case of unsuccessful incrementing operation between nodes.