Abstract: A multi-wavelength optical communication system includes a number of emitters each of which emits radiation at a different wavelength; a plurality of the detectors each of which senses radiation at a different wavelength corresponding to the radiation from one of the emitters and a shared waveguide including a scattering medium to transmit emitted radiation to the detectors.

Abstract: An optical transmission device configured as a central node, wherein each central node has dedicated pixels for receiving data and transmitting optical data so destination addressing is not required. The network is configured such that transmission on any particular receiver reserved pixels results in data being sent to a predetermined node. In particular, the star topology is configured as a receiver reserved scheme. The device is formed by constructing central node of transmitters and receivers that are attached to a silicon substrate with a processing means, and the optical interface to the transmitters and detectors on the central node establish a one-to-one correspondence with an individual fiber optic cable. The fiber optic cables are reconfigurable to different topologies or interconnections as each fiber optic cable has a known destination on the central node. Various topologies are possible using a star node as the building block.

Abstract: In a semiconductor device comprising photo-transceiver arrays constructed on silicon substrates with underlying supporting CMOS circuitry in the substrate interfacing with a source of software control, a method is provided for mapping and reconfiguring the global data transfer channel map of optical interconnect lines and intra-nodal routing links. An initial mapping procedure identifies all possible connections. The silicon circuitry provides for sensing optical connections and light levels, for testing or sensing of routing links, and for controlling gain and power, as well as forming and reforming routing links between detectors and emitters. A rule-based routing, mapping and re-mapping scheme, utilizing over-sampling techniques and effectuated by the silicon circuitry and software, accommodates limited misalignment of mating photo-arrays, faults occurring in data transmission channels after the initial mapping, and provides additional security, performance and power management capabilities.

Abstract: A high rate optical correlator is implemented on a substrate in which all of the optical devices are referenced to the flat surface of the substrate for optical alignment purposes by mounting the devices thereon. With the substrate surface as a reference point, alignment of the optical pieces is achieved to within a wavelength to eliminate the possibility of a “no correlation” result due to optical misalignment of the optical pieces. Additionally for the active elements, namely the laser, detector and spatial light modulators, interconnection of these devices and to drive sources is accomplished via direct coupling through the substrate so that the devices can communicate with each other through the silicon, thus to eliminate wire bonding and reduce pin count for the approximate 100,000 optical interconnects for a 256/256 array. Moreover, an epoxy frame which is milled at its top surface is used to mount an optical element over an active element for the alignment thereof.

Abstract: An electro-optical transceiver system with controlled lateral light leakage and a method of making such a system includes a plurality of emitter devices and detector devices including at least one of each, arranged in a planar array for transmitting and receiving, respectively, energy in a predetermined wavelength and a blocking medium disposed interstitially of the devices and being absorbing at the predetermined wavelength for blocking energy at the predetermined wavelength laterally leaking from an emitter device to one or more detector devices.

Abstract: An optical transmission device wherein each device has a single dedicated channel for receiving data and destination addressing is not required. The device is formed by constructing an array of transmitter/receiver pairs (transceivers) with a processing means and a gate controller. The network is configured such that transmission on any particular receiver reserved channel results in data being sent to a predetermined node having that particular receiver reserved channel. Data passes through other nodes without pausing to check the address information in the header when the data arrives at a node as is not in the dedicated receiver reserved channel.

Abstract: An electro-optical transceiver system with controlled lateral light leakage and a method of making such a system includes a plurality of emitter devices and detector devices including at least one of each, arranged in a planar array for transmitting and receiving, respectively, energy in a predetermined wavelength and a blocking medium disposed interstitially of the devices and being absorbing at the predetermined wavelength for blocking energy at the predetermined wavelength laterally leaking from an emitter device to one or more detector devices.

Abstract: An electro-optical transceiver system with controlled lateral light leakage and a method of making such a system includes a plurality of emitter devices and detector devices including at least one of each, arranged in a planar array for transmitting and receiving, respectively, energy in a predetermined wavelength and a blocking medium disposed interstitially of the devices and being absorbing at the predetermined wavelength for blocking energy at the predetermined wavelength laterally leaking from an emitter device to one or more detector devices.

Abstract: An electro-optical transceiver system with controlled lateral light leakage and a method of making such a system includes a plurality of emitter devices and detector devices including at least one of each, arranged in a planar array for transmitting and receiving, respectively, energy in a predetermined wavelength and a blocking medium disposed interstitially of the devices and being absorbing at the predetermined wavelength for blocking energy at the predetermined wavelength laterally leaking from an emitter device to one or more detector devices.

Abstract: An electro-optical transceiver system with controlled lateral light leakage and a method of making such a system includes a plurality of emitter devices and detector devices including at least one of each, arranged in a planar array for transmitting and receiving, respectively, energy in a predetermined wavelength and a blocking medium disposed interstitially of the devices and being absorbing at the predetermined wavelength for blocking energy at the predetermined wavelength laterally leaking from an emitter device to one or more detector devices.

Abstract: A method and apparatus utilizing a multiple quantum well modulator/emitter/detector pixel in a bilinear array permits reading or writing to an optical disc in parallel such that information may either be written to or read from an optical disc within one revolution of the optical disc. Thus while existing DVD and CDROM systems operate by sensing the contents of a spiral track, parallel readout afforded by the multiple quantum well modulator/emitter/detector provides as much as 1,000:1 advantage over single detector systems, with the biasing of the modulator/emitter/detector device determining whether the device is an emitter, detector or modulator. The co-location of the modulator/emitter/detector in a single device permits arranging devices in a linear array which is disposed over the optical disc for the parallel read/write functions.

Abstract: An apparatus and method for optically interconnecting subsystems of a microprocessor system, whether co-located on a common wafer or divided among two or more wafers or substrates. Photo- transceiver arrays adjacent all or selected subsystems are optically interconnected to other subsystems for data transfer, enabled by protocol embedded in the CMOS circuitry in the respective substrates, enabling high speed and large bandwidth communications. Subsystems on a wafer can be located at some distance apart and communicate via the optical interconnect without adverse propagation delays. In a preferred embodiment a central processing unit (CPU) interfaces optically with a plurality of remote memory or co-processor subsystems.

Abstract: An electro-optical transceiver system with controlled lateral light leakage and a method of making such a system includes a plurality of emitter devices and detector devices including at least one of each, arranged in a planar array for transmitting and receiving, respectively, energy in a predetermined wavelength and a blocking medium disposed interstitially of the devices and being absorbing at the predetermined wavelength for blocking energy at the predetermined wavelength laterally leaking from an emitter device to one or more detector devices.

Abstract: A system for performing real time optical comparisons using an optical correlator permits comparing a sampled image to a wide variety of reference images through the utilization of a multiple quantum well spatial light modulator which is utilized to rapidly present a large number of reference images for correlation. The utilization of the multiple quantum well spatial light modulator as the spatial light modulator in a van der Lugt image correlator in combination with a spectrometer permits optical comparisons at 300,000 frames per second versus 10,000 frames per second, the best case for liquid crystal based spatial light modulators.

Abstract: An apparatus for efficiently transferring data on and off of an integrated circuit in a network node. In one embodiment, the chip has a silicon substrate and direct interconnection with optical fibers. In particular, the present invention pertains to an arrangement of the transmitters and receivers, along with processing circuitry and optical fibers, so signals are routed most efficiently for a given type of architecture, such as ring, star, routers, and crossbars. In one embodiment, the transmitters and receivers are interdigitated to provide bi-directional optical channels. An additional feature of the invention is the mating of the optical fibers to the transmitters and receivers, such that there is a direct correspondence on both ends of the optic fibers. The optical fibers of the transmitters and receivers can be grouped or bundled together to allow reconfiguration of different topology or to improve system performance by bundling together certain fibers.

Abstract: An electro-optical transceiver system with controlled lateral light leakage and a method of making such a system includes a plurality of emitter devices and detector devices including at least one of each, arranged in a planar array for transmitting and receiving, respectively, energy in a predetermined wavelength and a blocking medium disposed interstitially of the devices and being absorbing at the predetermined wavelength for blocking energy at the predetermined wavelength laterally leaking from an emitter device to one or more detector devices.

Abstract: A method for making optoelectronic devices with interdigitated arrays of photonic devices is disclosed wherein an array of first type photonic devices and sacrificial device(s) is hybridized to a driver circuitry substrate, the sacrificial devices are removed, and an array of second type photonic devices is hybridized into the spaces left by removal of the sacrificial devices.

Abstract: An optoelectronic device with an array of passive optical elements mounted thereon which provide optical communications between the active optical elements of the transceiver array as well as optical signal processing.

Abstract: A connector and cable provide a two dimensional array of optical channels for interconnecting electronic circuits using a two-dimensional, integrated circuit array of emitter and/or detector elements affixed to the fiber bundle, an ASIC substrate including drive circuitry electrically connected to the array and adapted to drive emitter elements and/or sense detector elements within the array, fanout circuitry associated with the ASIC substrate and drive circuitry for spatially separating the electrical signal channels, and an electrical connector means connected to the fanout circuitry. Applications include all manner of interconnecting circuit boards or similar components within a single system or between systems.

Abstract: An optical transceiver system including a plurality of transceiver nodes with at least one two-dimensional integrated circuit array of optical emitters and detectors mounted on an ASIC drive circuit and forming a focal plane; a lens or light collimator located adjacent for directing light to and from the emitter and detectors; an epoxy stand off located peripherally around each focal plane to prevent contact between the focal plane and the lens or collimator and to prevent entry of contaminants therebetween; and at least one fiber optic bundle to convey light between each of the transceiver nodes through the perspective lenses or collimators.