Kestrel Solutions, Inc.

Forster Energy LLC

Other

Michael W Rowan

James F Coward

Norman L Swenson

Laurence J Newell

Peter H Chang

Ting K Yee

Minnie Ho

Ji Li

Gregory M Cutler

Stuart E Wilson

David Alan Pechner

Abraham H Kou

David B Upham

Slava Yazhgur

Augustus Elmer

Matthew Charles Bashaw

Roger Rong Taur

Shin-Sheng Tarng

Chin-Sheng Tarng

Matthew C Bradshaw

Richard A Fuelling

A transmitter subsystem generates an optical signal which contains multiple subbands of information. The subbands have different polarizations. For example, in one approach, two or more optical transmitters generate optical signals which have different polarizations. An optical combiner optically combines the optical signals into a composite optical signal for transmission across an optical fiber. In another aspect, each optical transmitter generates an optical signal containing both a lower optical sideband and an upper optical sideband (i.e., a double sideband optical signal). An optical filter selects the upper optical sideband of one optical signal and the lower optical sideband of another optical signal to produce a composite optical signal.

Optical communications using multiplexed single sideband transmission and heterodyne detection

A receiver and plate for removably mounting devices to a surface on a boat or other vehicle. The receiver's top surface opens into a vertical slot with tapering side walls. The separate plate slides into this slot. The separate plate has corresponding side walls that mate with the tapering side walls in the receiver. A pair of horizontal steps on the plate come to rest against the receiver's top surface. Although the side walls of the plate rest closely against the side walls of the slot in order to minimize relative motion, the mating of the pair of steps to the receiver's top surface prevents the plate from becoming jammed in the receiver. The plate is used as the base member for a variety of holding devices. Different plates can be configured to mount fishing rod holders, lighting masts, navigation equipments, radios, and the like. The user can easily interchange this equipment in a desired position on the boat by removing a plate with a first piece of equipment from the receiver and replacing it with a plate mounting a second piece of equipment. A locking device is optionally provided to lock the plate securely in the receiver.

Modular accessory holder

A transmitter subsystem generates an optical signal which contains multiple subbands of information. The subbands have different polarization. For example, in one approach, two or more optical transmitters generate optical signals which have different polarization. An optical combiner optically combines the optical signals into a composite optical signal for transmission across an optical fiber. In another aspect, each optical transmitter generates an optical signal containing both a lower optical sideband and an upper optical sideband (i.e., a double sideband optical signal). An optical filter selects the upper optical sideband of one optical signal and the lower optical sideband of another optical signal to produce a composite optical signal.

A frequency division multiplexing (FDM) node used in optical communications networks provides add-drop multiplexing (ADM) functionality between optical high-speed channels and electrical low-speed channels. The FDM node includes a high-speed system and an ADM crosspoint. The high-speed system converts between an optical high-speed channel and its constituent electrical low-speed channels through the use of frequency division multiplexing and preferably also QAM modulation. The ADM crosspoint couples incoming low-speed channels to outgoing low-speed channels, thus implementing the ADM functionality for the FDM node.

Optical communications networks utilizing frequency division multiplexing

A frequency division multiplexing (FDM) node used in optical communications networks provides add-drop multiplexing (ADM) functionality between optical high-speed channels, and low-speed tributaries. The FDM node includes a high-speed system and an ADM crosspoint. The high-speed system converts between an optical high-speed channel and its constituent electrical, low-speed channels through the use of frequency division multiplexing. The ADM crosspoint couples any incoming low-speed channels and any incoming tributaries to any outgoing low-speed channels and tributaries, thus implementing the ADM functionality for the FDM node.

Electrical add-drop multiplexing for optical communications networks utilizing frequency division multiplexing

A system transmits digital data over an optical fiber at high aggregate data rates and high bandwidth efficiencies. The system includes a modulation stage, a frequency division multiplexer, and an optical modulator. The modulation stage QAM-modulates a plurality of incoming digital data channels. The frequency division multiplexer combines the QAM-modulated signals by frequency division multiplexing them into an RF signal. The optical modulator uses the RF signal to modulate an optical carrier for transmission over an optical fiber.

System and method for spectrally efficient transmission of digital data over optical fiber

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Los Gatos, CA, United States of America

Michael W Rowan