Finisar

About: Finisar is a company organization based out in Sunnyvale, California, United States. It is known for research contribution in the topics: Signal & Laser. The organization has 900 authors who have published 1523 publications receiving 22634 citations.

Deferred processing of continuous metrics

Abstract: Network monitoring is performed using a three-tiered distributed computing system architecture, including a data source tier, a portal tier and a client tier. The data source tier monitors the physical data on the network medium using multiple data collection sources connected to the network. The probes analyze network data and generate fundamental metrics that describe attributes of the network data. The portal tier encapsulates the fundamental metrics along with executable processor objects into data containers having a predefined format. The processor objects contain logic that operates on fundamental metrics contained in the data containers in a manner so as to generate new derived metrics or aggregates of metric data. The data containers may be requested by the client tier, which executes the processor objects and provides a user interface for displaying various types of network information derived from the contents of data containers.

Chirp managed laser fiber optic system including an adaptive receiver

Abstract: A fiber optic communication system comprising: an optical signal source adapted to produce a frequency modulated signal; and an optical spectrum reshaper (OSR) adapted to convert the frequency modulated signal into a substantially amplitude modulated signal, wherein the optical spectrum reshaper is adapted to compensate for at least a portion of a dispersion in a transmission fiber; and further including a transmission fiber coupled to the optical source, a receiver and a decision circuit coupled to the transmission fiber.

Apparatus for enhancing impedance-matching in a high-speed data communications system

Abstract: An impedance-matching electrical connection system (400), for use with high-frequency communication signals, includes a circuit board and a plurality of contact pads (404-4, 404-2) mounted on the circuit board. The contact pads are for coupling with a plurality of complementary connectors of an external electrical device. Each coupling is associated with an excess shunt capacitance. The electrical connection system further includes a plurality of inductive traces (408-n) mounted on the circuit board, each of which is connected to a respective contact pad, and is associated with a compensating series inductance. Additionally, the electrical connection system includes a plurality of signal lines (406-1) mounted on the circuit board, each of which is connected to a respective inductive trace. Each inductive trace is configured so that its associated compensating series inductance substantially offsets the excess shunt capacitance associated with the coupling between the contact pad connected to the inductive trace and a complementary connector.

Use of a first two-wire interface communication to support the construction of a second two-wire interface communication

Abstract: A telecommunications system and constituent two-wire interface module. The two-wire interface module includes a first two-wire interface component configured to receive a first two-wire interface communication following a first two-wire interface protocol, and a second two-wire interface component configured to generate a second two-wire interface communication following a second two-wire interface protocol. The first and second two-wire interface communications each include a header portion and a payload portion. The second two-wire interface component is further configured to use one or more of the data fields from the payload portion of the first two-wire interface communication in the header portion of the second two-wire interface communication.

Integrated FIFO memory management control system using a credit value

Abstract: An integrated data controller that utilizes a first-in first-out (FIFO) management system that compensates for the unpredictable nature of latency associated with requesting data from memory and enables the timing of data requests to be determined based on the number of pending requests and the amount of data currently residing in the buffer. The FIFO management system includes a FIFO controller and a FIFO buffer that monitor a credit value and a trigger value to determine when to make data request bursts upon a memory unit. The trigger value is an indication of whether there is a sufficient amount of free space for it to be beneficial to make a data request burst and the credit value is a number that indicates the number of a data blocks that should be requested in the data request burst.