Rocky Mountain Research Center

Other

All Optical Networks, Inc.

Progressive Technology, Inc.

John N Hait

Robert L Carter

Dmitry Berger

Arkady S Bablumyan

Ronald E Preston

Bruce E Smith

A polarization insensitive photonic information router that can use polarization sensitive switches is disclosed. A photonic input signal is polarization separated into two paths having mutually orthogonal fixed polarizations and complementary amplitude fluctuations in accordance with polarization fluctuations of the input signal. Duplicate-acting switches, one for each fixed polarization, produce switched, polarized signal pairs. These are connected so as to recombine energy from both polarization contributions in each of the switched outputs. Recombining can standardize output polarizations, or reproduce the input polarization fluctuations. Polarization stabilization can also be used before switching. Decoding packet data to operate the switch produces a polarization insensitive packet switching router.

Polarization-preserving, phase-and-polarization-insensitive, photonic data router

Multi-domain, phase-compensated, differential-coherence detection of photonic signals for interferometric processes and devices may be manufactured holographically and developed in situ or with an automatic registration between holograms and photonic sources in a single frame. Photonic or electronic post processing may include outputs from a cycling or rotation between differently phased complementary outputs of constructive and destructive interference. A hyper-selective, direct-conversion, expanded-bandpass filter may rely on an expanded bandpass for ease of filtering, with no dead zones for zero beat frequency cases. A hyper-heterodyning, expanded bandpass system may also provide improved filtering and signal-to-noise ratios. An ultra-high-resolution, broadband spectrum analyzer may operate in multiple domains, including complex &ldquo;fingerprints&rdquo; of phase, frequency, and other parameters. The associated technologies of the invention may be used to produce extreme precision in multi-domain locking of sophisticated waveforms varying in several domains.

Hyper-heterodyning, expanded bandpass apparatus and method

A method and apparatus for hyper-dense communications provides a photonic signal, such as an optical or radio frequency signal produced with substantially reduced sidebands. Signals may be filtered photonically, such as by a photonic transistor or photonic drop filter, to remove such frequency components. The resulting bandwidth of the photonic output signal is narrower in the photonic domain than the bandwidth of the information it carries in the original domain of the information. This hyper-dense signal is then transmitted and received. Such signals retain their reduced spectral distributions while in the photonic domain. Upon reception and conversion into electronic form, the full spectrum of the original information may be restored, including the sidebands, by passing the transmitted signal through a non-linear device.

Drop filter apparatus and method

Polarization-stabilizing, phase-and-polarization-insensitive, photonic data router

A polarization insensitive photonic information router that can use polarization sensitive switches is disclosed. A photonic input image is polarization separated into two paths having mutually orthogonal fixed polarizations and complementary amplitude fluctuations in accordance with polarization fluctuations of the input image. Duplicate-acting switches, one for each fixed polarization, produce switched, polarized image pairs. These are connected so as to recombine energy from both polarization contributions in each of the switched outputs. Recombining can standardize output polarizations, or reproduce the input polarization fluctuations. Polarization stabilization can also be used before switching. Decoding packet data to operate the switch produces a polarization insensitive packet switching router.

Photonic image router

Multi-domain, phase-compensated, differential-coherence detection of photonic signals for interferometric processes and devices may be manufactured holographically and developed in situ or with an automatic registration between holograms and photonic sources in a single frame. Photonic or electronic post processing may include outputs from a cycling or rotation between differently phased complementary outputs of constructive and destructive interference. A hyper-selective, direct-conversion, expanded-bandpass filter may rely on an expanded bandpass for ease of filtering, with no dead zones for zero beat frequency cases. A hyper-heterodyning, expanded bandpass system may also provide improved filtering and signal-to-noise ratios. An ultra-high-resolution, broadband spectrum analyzer may operate in multiple domains, including complex &ldquo;fingerprints&rdquo; of phase, frequency, and other parameters. The associated technologies of the invention may be used to produce extreme precision in multi-domain locking of sophisticated waveforms varying in several domains. Phase-masking techniques may provide phased arrays of complementary outputs over a broad band, such as may be implemented in a projected phase-mask, multiple phase interferometer. Topographic holographic imaging and projection techniques are enabled at very fine resolutions, while minimizing required information for systems such as holographic television. Phase-stabilization, modulation, compensation and the like are enabled by devices and methods in accordance with the invention, and may be servo-controlled.

Servo-stabilized-phase, differential coherence detector

Pattern-recognition computing can be accomplished using wave-type or other types of energy. In pattern-recognition computing which uses a plurality of wave-type energy input patterns modulated with quantized information, energy from the patterns combines to produce interference-based dynamic images. Component parts of a dynamic image are separated and recombined to produce logic and other computing process outputs. To produce a coordinated set of optics for pattern-recognition computing, waveforms at pixel-sized image components of the dynamic image are chosen to become contributors to the combined output if they will contribute (or can be modified to contribute) in a positive manner to a combined output waveform that obeys the logic rules of the device being produced. Iterative changes in input pattern characteristics are used to optimize the coordinated optics. Pattern-recognition computing can also use special interference and frequency-multiplexed logic.

Pattern-recognition computing and method for producing same

A delayed-pulse photonic time division multiplexer which provides a parallel digital data to photonic serial conversion is disclosed. Modifications which provide wavelength division multiplexing are also included. A series of input pulses of photonic energy are directed into an output as sync pulses. The input pulses are also directed into a group of n optical modulators to read parallel digital data that has been loaded into the modulators. Modulator outputs are delayed by digit-transmission-time intervals and directed into the output as serial data between the sync pulses. Input pulses are also used to trigger the loading of the next data set into the modulators during the time that the previous data set is being transmitted in serial. The invention can send serial data at the maximum speed of optical components while using data from slower electronic components. The invention can also use all-photonic components and signals, including frequency-multiplexed signals, with its time division multiplexing functions for each frequency channel. Outputs can use a variety of modulation forms, including multistate semaphores.

Combination photonic time and wavelength division multiplexer

A means, method and apparatus for producing a parallel addressable set of images by modulating a set of input beams with addressing information, and projecting the energy from a three-dimensional array of first pixel locations which decode in parallel to produce an interference image at the location of a second three-dimensional array of pixel locations, energizing at least one of the second pixels. Each image corresponds with an input address. A subset of addresses, projection surface configurations, and images exhibit useful synergistic relationships. These are used to address a ROM, RAM, or content addressable memory, provide a visual display of selected images, iterate in a series to produce four dimensional computing, integrate information from multiple energy forms, and accomplish signal processing and channel switching.

Addressable imaging

Pattern-recognition computing can be accomplished using wave-type or other types pf energy. In pattern-recognition computing which uses a plurality of wave-type energy input patterns modulated with quantized information, energy from the patterns combines to produce interference-based dynamic images. Component parts of a dynamic image are separated and recombined to produce logic and other computing process outputs. To produce a coordinated set of optics for pattern-recognition computing, waveforms at pixel-sized image components of the dynamic image are chosen to become contributors to the combined output if they will contribute (or can be modified to contribute) in a positive manner to a combined output waveform that obeys the logic rules of the device being produced. Iterative changes in input pattern characteristics are used to optimize the coordinated optics. Pattern-recognition computing can also use special interference and frequency-multiplexed logic.

A means and method for phase stabilization and sorting of wavetrains of electromagnetic energy comprising: splitting an input beam into a plurality of intermediate beams; directing the intermediate beams along separate delay paths so that wavetrains from the delayed beams overlap each other and bridge gaps between wavetrains; producing interference with the delayed beams at a plurality of locations at an image component separator, and separating energy at each location, phase-adjusting and directing it into at least one output, thereby providing a wavetrain phase stabilizer having a substantially constant phase output by phase-matching overlapping wavetrains. Multiple outputs may be added to facilitate wavetrain sorting. Inserting the invention into the feedback path of a laser provides phase-stabilized continuous-wave laser light.

Wavetrain stabilization and sorting

A means and method of photonic heterodyning wherein at least one photonic beam set having fundamental frequencies to be heterodyned is used to produce a dynamic interference image that is projected onto an image component separator. Energy from selected portions of the dynamic image is separated into at least one output. Energy components within the dynamic image move relative to the separating locations as determined by the fundamental input frequencies. This causes intermodulation of the input signals and the development of energy at the sideband frequencies in the output(s). Special Interference is also used to provide amplified photonic heterodyning.

Photonic heterodyning having an image component separator

A means and method of controlling a plurality of energy beams with at least one of the plurality of beams. At least one first beam set produces special interference with at least one second beam set, at a first location(s), diverting energy from both beam sets to a second location(s), where energy does not appear from one . . . or either, of the inputs in the absence of interference. By selecting the timing, levels, phases, frequencies, and interconnection of multiple controllers, a multitude of useful energy beam circuits are able to be made . . . such as: gated amplifiers, cascaded amplifiers, gated oscillators, phase demodulators, active filters, inverters, inverted filters, limiters, threshold detectors . . . as well as the logic functions: multi-input AND, multi-input OR, XOR, NOT, NAND, NOR, set/reset flip flops, D-type, clocked, one shot, schmitt trigger, time division multiplexer and demultiplexer, frequency division demultiplexer, binary half adder, binary digit counter, full binary counter, square wave oscillator, phase locking, and extracting information from a fluctuating phase beam. The present invention provides the entire foundation of photonic, and energy beam computing using special interference, which provides a greatly expanded base for all of photonic transistor technology.

Photonic signal processing, amplification, and computing using special

A computer architectural and apparatus system for preventing software copying or alteration, and providing enhanced computational capabilities, physical information security, and physical environment protection is disclosed. The system comprises an Independent Computer Module (ICM), and an Interface Unit. The ICM comprises a CPU, a RAM, a ROM, a memory switching means, a communications port, and a connectorless interface contained within a sealed cartridge. The Interface Unit comprises a receptacle for receiving the ICM, which contains a matching connectorless interface, and wiring to a host computer's port and power. The connectorless interface uses directional electro-magnetic emitters and sensors to prevent signal leakage. The memory switching means turns off the entire secure memory, enabling non-secure programs to be run from another section of RAM. Reactivation of secure memory by a non-secure program causes program control to be transferred to a fixed address within the secure program.

Growing community of inventors

Missoula, MT, United States of America

John N Hait