Noble, Nicholas

A linear motor conveyor system (100) uses a central controller (108) to determine trajectories (114a, 114b) of shuttles (106a, 106b) traveling on a conveyor track (102). The trajectories are provided to respective controllers in each section (104a, ..., 104h) of the conveyor track in order to determine and control the coil currents used to move the shuttles. A time synchronization process is used to ensure tight temporal synchronization across the different track sections

A tunable laser comprising at least two gain chips configured to generate light and a wavelength selection circuit. The wavelength selection circuit comprising a first waveguide coupled to a first gain chip of the at least two gain chips, a second waveguide coupled to a second gain chip of the at least two gain chips, a first wavelength selective photonic ring resonator optically coupled to the first waveguide, a second wavelength selective photonic ring resonator optically coupled to second waveguide, a third waveguide optically coupled to the first wavelength selective photonic ring resonator and the second wavelength selective photonic ring resonator; and a control circuit. The control circuit is configured to apply a first current to the first gain chip to bias the first gain chip, tune the first wavelength selective photonic ring resonator to a target wavelength, and tune the second wavelength selective ring resonator off-resonance.

In part, in one embodiment the disclosure relates to a laser that includes a laser cavity; an optical gain chip that includes a gain material, the gain material having a gain region, the optical gain chip includes a first waveguide, the first waveguide defines a first section of the laser cavity; an external laser cavity includes a second waveguide, the second waveguide is optically coupled to the first waveguide, the second waveguide defines a second section of the laser cavity; and a DBR ring optically coupled to the second waveguide, the DBR ring includes a loop waveguide optically coupled to the second waveguide and one or more DBR disposed along one or more sections of the loop waveguide, the laser cavity includes the first section of the laser cavity and the external laser cavity; and a PIC that includes the second waveguide and the DBR ring.

An advanced optical device featuring a substrate with a receiver photonic integrated circuit (PIC) and a transimpedance amplifier (TIA) is disclosed. The PIC is mechanically coupled to the substrate, while the TIA is mounted to the substrate and electrically connected to the PIC. One configuration includes a receiver die flip-chip bonded to a TIA die using copper pillar bumps, optimizing space with the PIC having a smaller footprint than the TIA. A fiber array is precisely aligned and attached to the PIC using epoxy bonding, aided by alignment marks indicating spot-size converters (SSCs). The PIC incudes multiple photodetectors and waveguides, enhancing light guidance and conversion. The manufacturing process involves a chip-on-wafer technique, forming a dam for epoxy application, and precise alignment of fiducials to the fiber array. The method also includes molding, forming through-mold vias, and redistributing electrical connections, ensuring efficient signal processing and integration without wire bonding.

In one embodiment, the disclosure relates to an electro-optical device that includes an optical gain chip that includes; a gain material, the gain material having a gain region, the optical gain chip that includes: N gain chip waveguides; a photonic integrated circuit (PIC) that includes a plurality of layers and a plurality of components, wherein the PIC defines M sections; N external laser cavities; P PIC waveguides; and B distributed Bragg reflector (DBR) rings, wherein each of the N external laser cavities is defined by one of the P PIC waveguides and one of the B DBR rings; and N laser cavities, wherein each laser cavity of the N laser cavities comprises one of the N external laser cavities and one of the N gain chip waveguides.

Safe torque-off (STO) functionality can be used to ensure the driving power to at least a section of a linear motor is de-energized. The STO may use a plurality of safety mechanisms for redundantly de-energizing the coils of the linear motor. The safety mechanisms may include disconnecting the motor power supply from power circuitry, shorting the motor power supply to ground, and/or disconnecting an operating supply from control circuitry.

Techniques for protection switching mechanisms that use detection of power in baseband signals resulting from optical mixing of an optical signal (at a frequency of a particular channel to be protected) with the received WDM spectra to determine whether there is a failure on the particular channel, indicated by an average power at a resulting baseband signal from the optical mixing being less than a threshold.

Methods, systems, and computer program products are provided for transmitting data in a packet network. In various embodiments, a method includes: determining, by a first node, automatic protection switching (APS) information associated with the first node; initiating, by the first node, a timer based on the APS information; communicating, by the first node to a second node over the packet network, a first message including the APS information; receiving, by the first node, a second message from the second node, the second message including APS information associated with the second node, the APS information associated with the second node including a priority associated with an APS state of the second node; and selectively synchronizing, by the first node, an APS state of the first node with the APS state of the second node based on the timer and the APS information of the second message.

An automatic filing system uses a conveyor system to controllably move a plurality of shuttles (104a..104g) that are able to hold a bag for packaging the prescription products for delivery as well as shuttles (106a,106b,344a,344b) that are able to hold a bin for holding prescription products. The bag-holding shuttles can transport the bags to filling stations (110, 112,312,324) that can place products, such as portions of an individual's prescription or other related products, into the bags and then to a sealing station (336) that seals the bag prior to delivery to a sorting station (348) for delivery. The bin-holding shuttles may be used for processing of orders that may require some additional manual intervention in order to complete the order.

In some examples, a system may receive, from a first user, a request to create a team folder from a folder associated with the first user. The request may indicate a requested storage quota from a team folder storage pool to associate with the team folder. The system may determine whether the requested storage quota is below a threshold amount corresponding to a profile for team folder creation associated with the first user. If the requested storage quota is below the threshold amount, the system may automatically create a shared file system for the team folder and allocate a quantity of storage from the team folder storage pool to the shared file system based on the requested storage quota. Alternatively, if the requested storage quota exceeds the threshold amount, the system may generate a communication to an administrator to request approval for creation of the team folder.