Abstract: A method for optical coupling comprises: includes providing a holographic recording media fixed relative to at least two optical elements; creating a hologram by transmitting light from each of the optical elements to the recording media; and transmitting light from a sending element of the optical elements through the recording media to a receiving element of the optical elements. Other variations include a system comprising at least two optical elements situated on one side of the recording media and an optical detector situated on an opposite side for detecting light transmitted through the opposite side; and a system comprising at least three optical elements situated on one side of the recording media, a beam splitter, and optical pump/control beams configured for transmitting an optical pump/control beam to the beam splitter and the opposite side so as to control transmission of an optical signal.

Abstract: This invention relates to photochromic filaments composed of the lithium salt of a conjugated, polymerizable polyacetylene having a carboxylic acid or carboxylate terminal group wherein the length to width ratio of said filaments is between about 5000:1 and about 5:1 and the average length of the filament is up to about 5 cm. The invention also pertains to the use of said salts in maximized radiation sensitivity for imaging, radiation dose measurement or mapping and detection of radiation fields.

Abstract: A power harvesting module comprises at least one electromagnetic (EM) radiation intensity modulator configured to receive a first EM radiation from at least one source and at least one energy converter configured to at least partially convert the energy of the first EM radiation during modulation into electrical energy.

Abstract: A method and system for increasing the coupling efficiency of optical interconnections between optical elements such as optical fibers, waveguides, and vertical cavity surface emitting lasers (VCSEL) in single mode or multimode.

Abstract: A solar powered warning light device includes a housing having a front orifice, a solar panel disposed on top of the housing to receive solar energy, a circuit board disposed in the housing and having a converting device coupled to the solar panel, to receive and to convert the solar energy into electric energy and stored in one or more capacitors. The circuit board includes one or more light devices coupled to and energized by the capacitor, and engaged in the orifice of the housing, to emit light out of the housing. A switch may switch on and off the light device, and a photoactive member is coupled to the electric switch, to operate the electric switch by the light of the environment.

Abstract: The invention provides novel “folded” Mach-Zehnder interferometers (“folded” MZI's), methods for making folded MZI's, and systems and devices incorporating them. The novel folded MZI's are elaborated from conventional MZI structures by cutting across the interferometer arms of a conventional MZI structure and creating reflectors on the exposed ends of the interferometer arms to form two “folded” MZI's from a single conventional Mach-Zehnder interferometer structure. The novel folded MZI's show promise as sensors having a reduced size and enhanced sensitivity relative to sensors incorporating conventional Mach-Zehnder Interferometers.

Abstract: Embodiments of methods, apparatuses, devices, and/or systems for optical are disclosed.

Abstract: A wireless peripheral and control method for supporting legacy keyboard inputting. The wireless peripheral includes a wireless interface device (like a wireless keyboard) and a corresponding wireless receiving dongle. The dongle can be selectively connected to a wired input port (like a PS/2 port) or a universal connection port (like a USB port) of a host of the computer system, and the dongle has a firmware advanced control module for decoding signals of the wireless interface device to signals formatted for the wired input port. When the wireless peripheral is used for BIOS setting of the host, the dongle is connected to the wired input port, thus the advanced control module can be enabled to support a legacy input functionality of the computer system.

Abstract: A method for adaptively fabricating a waveguide comprises: measuring misplacement of a photonic device relative to a substrate; generating computer readable instructions for using a plurality of graphics primitives to form the waveguide; and photocomposing the waveguide on the substrate in accordance with the computer readable instructions. A reticle comprises a plurality of graphics primitives with at least one of the plurality of graphics primitives comprising a tapered end. A waveguide comprises a plurality of waveguide segments with each of the plurality of waveguide segments comprising a tapered end and being adjacent to at least one other of the plurality of waveguide segments.

Abstract: A method of erasing an erasable disc. When an optical drive is erasing a DVD-RW disc, a write mode, instead of a conventional erase mode, is used to execute an erase operation. In the write mode, the invention sets current values of individual current paths in a laser diode drive circuit such that a laser diode always outputs a constant erase power (Pe) onto the DVD-RW disc-no matter how a write pulse signal changes. Thus, after a starting position of the DVD-RW disc is determined, the optical drive only needs to write a data amount of n ECC blocks to complete the disc erasing operation without continuously detecting the LPP (Land Pre-Pit) data block to obtain a stop erasing position on the disc in the conventional optical drive.

Abstract: An electromagnetic coupler comprising: a coupling waveguide adapted for receiving input modes along an input axis, propagating coupling modes along a coupling axis, and transmitting output modes along an output axis, the output axis being not parallel to the coupling axis; and an output waveguide disposed adjacent the coupling waveguide and adapted for receiving the output modes.

Abstract: A method for adaptively fabricating a waveguide comprises: measuring misplacement of a photonic device relative to a substrate; generating computer readable instructions for using a plurality of graphics primitives to form the waveguide; and photocomposing the waveguide on the substrate in accordance with the computer readable instructions. A reticle comprises a plurality of graphics primitives with at least one of the plurality of graphics primitives comprising a tapered end. A waveguide comprises a plurality of waveguide segments with each of the plurality of waveguide segments comprising a tapered end and being adjacent to at least one other of the plurality of waveguide segments.

Abstract: The address of a data packet to be transferred from a memory to a network interface card within a direct memory access (DMA) is checked. First of all, the address of a descriptor corresponding to the data packet is read from the memory, wherein the descriptor contains information of the address of the data packet. Then, whether the address of the descriptor complies with a certain rule is determined. If the address of the descriptor does not comply with the certain rule, an interrupt signal is asserted to a processor to perform a corresponding interrupt service in order to re-read the address of the descriptor.

Abstract: An imaging system for generating an image of an object is provided. The imaging system comprises an X-ray source disposed in a spatial relationship to the object configured to transmit X-ray radiation through the object. The system further comprises at least one X-ray detecting media configured to convert the X-ray radiation transmitted through the object to optical signals. In addition, the system comprises an optical transmission conduit comprising a first end and a second end and an optical detector configured to convert optical signals to corresponding electrical signals. The first end of the optical transmission conduit is coupled to the X-ray detection device and the second end coupled to the optical detector.

Abstract: An ultrasound system includes an ultrasound probe configured for sensing and transmitting ultrasound signals. The ultrasound system further includes an optical conduit configured for coupling a light source and an optical detector in an optical path. The optical conduit includes electro-optic modulators configured for modulating optical signals on the optical conduit with at least one of the electrical signals configured to generate corresponding optically modulated analog signals on the optical conduit. In one example, the electro-optic modulators comprise electro-optic polymer modulators.

Abstract: A wireless system has a host and a wireless peripheral, such as a cell phone and a corresponding wireless handset. When the system is in use, if a wireless connection between the host and the peripheral is disconnected, the wireless peripheral is capable of alerting a user by sound, light or vibration alarm. In addition, the host is capable of generating sound, light or vibration to indicate its location when it is disconnected.

Abstract: A method, system, and recording medium of testing 1394 interface card are disclosed in the present invention. A plurality of ports for the 1394 interface card to be tested are respectively connected to ports of a reference 1394 interface card through cables. One port of the 1394 interface card to be tested and one port of the reference 1394 interface card are in enabled condition and the others are in disabled condition. Only a reference 1394 interface card and two PCI slots are used, the testing process is simplified, and the probability of testing error is decreased.

Abstract: A length measure apparatus and the method for measuring transform an image from a lens set into a digital contrast image via a central processing unit. The CPU has multiple standard lines that are previously set therein. Multiple movement controllers control a movement of a selected standard line from the CPU relative to the digital contrast image. A movement value is output when the selected standard line flushes with a profile of the contrast image. The measure value is shown on a monitor when the CPU contrasts the movement of the selected standard line.

Abstract: A communication module coding a first original header signal as a first check signal by a first coding means, and outputs an output header signal by whitening the first original header signal and the first check signal with a clock code according to a second coding means. A method for the communication module includes obtaining the output header signal; generating a guessing clock code; dewhitening the output header signal into a second original header signal and a second check signal by a third decoding means with the guessing clock code; utilizing the first coding means to form a third check signal from the second original header signal; and comparing the third check signal to the second check signal. The third decoding means decodes the output header signal into the first original header signal and the first check signal while the guessing clock code is substantially the same as the clock code.

Abstract: A method of forming a waveguide including a core region, a cladding region, and an index contrast region situated therebetween includes depositing a polymerizable composite on a substrate to form a layer, patterning the layer to define an exposed area and an unexposed area of the layer, irradiating the exposed area of the layer, and volatilizing the uncured monomer to form the waveguide, wherein the polymerizable composite includes a polymer binder and sufficient quantities of an uncured monomer to diffuse into the exposed area of the layer and form the index contrast region. The resulting waveguide includes an index contrast region which has a lower index of refraction than that of the core and cladding regions.