摘要:
An optical fiber splitter has a higher density fiber optic array that allows for smaller packaging. The optical fibers that extend from the optical fiber splitter have one end connectorized and their spacing at the other end reduced, thereby eliminating components that were heretofore required. A method of making the fiber optic array includes interleaving the optical fibers to reduce the overall dimensions of the fiber optic array and the fiber optic splitter. A tool is used to reduce the spacing of the optical fibers in the fiber optic array.
摘要:
A method for micro-article assembly, the method including: applying a curable formulation to a first member; curing the applied curable formulation to provide a pressure sensitive adhesive on the first member; and combining, such as applying pressure to the first member having the cured selectively applied pressure sensitive adhesive and a second member to form the microplate assembly and as further defined herein.
摘要:
Serial input data is partitioned into parallel data elements prior to rotation by an invertible linear mapping. The resulting frames of parallel signal elements are sequentially transmitted over the link. After receipt from the link, the signal is demodulated and assembled into frames of parallel signal elements which are de-rotated by an inverse linear mapping. The recovered parallel data elements are then re-assembled into serial output data. The linear mapping employs: 1) commuting rotation matrices for convolutionally rotating data vectors into signal vectors and vice-versa; 2) filter bank polyphase rotation matrices; or 3) computationally efficient multi-rate wavelet filter banks. Coefficients of the rotation matrix of the receiver are adaptively equalized to correct for transmission path distortion. A test signal may be inserted on the transmit side for receiver synchronization or link distortion characterization.
摘要:
Packages for long period fiber gratings and other optical components (and methods for forming the packages) are described. According to an aspect of the invention, a hollow tube surrounding an optical fiber containing a long-period grating is collapsed in two areas, forming a seal at each end of the tube. According to another aspect of the invention, a hollow tube with a shelf section at each end surrounds an optical fiber containing a long-period grating. The hollow tube is sealed at each end with a fused frit. According to another aspect of the invention, a hollow tube surrounding an optical fiber containing a long-period grating is sealed at each end with a glass plug.
摘要:
A Mach-Zehnder interferometer for performing an optical function on a plurality of optical fibers is provided. The interferometer includes a first cane segment surrounding the optical fibers. The first cane segment forms a first optical coupling region. The interferometer also includes a second cane segment surrounding the optical fibers. The second cane segment forms a second optical coupling region. A phase shift region is formed by a discontinuity between the first and second cane segments for exposing the optical fibers. The optical fibers are suspended between the first and second cane segments within the phase shift region. A substrate is provided for supporting the optical fibers within the phase shift region.
摘要:
A tapered optical fiber coupler includes a first fiber with a core (11) and a cladding (12) and a second fiber with a core (21), an inner cladding (22) and an outer cladding (23). In the stretched, coupling regions of the device, the coupling regions (44, 50) of the fibers form of coupling region waveguides with dispersion curves crossing one another at a preselected operating wavelength. The one or more claddings of each fiber has a monotonic decreasing refractive index distribution, and the refractive index distributions of the claddings (12, 22, 23) are different from one another. Coupling of light from one another occurs only in the narrow band of wavelengths surrounding the operating wavelengths. The outside diameters and core diameters of the fibers may be identical to one another and identical to those of standard optical fibers. Thus, the device can be connected in an optical system.
摘要:
An improved process is described for oxygen delignification of medium consistency pulp slurry which teaches control parameters and their resultant effect on final product characteristics. Specifically, a process is described wherein pulp slurries of from approximately eight percent to sixteen percent consistency, are heated to a temperature of at least 170.degree. F. and impregnated oxygen gas and alkali to bring the slurry to a pH of from approximately 11-12.5. The slurry is mixed in a high shear mixer, for agitating mixing therein, under pressure of from approximately 20-180 psig for a first reaction time of typically 5 minutes. Additional alkali is added to the slurry to return the pH to at least 11, preferably at least 12, and the residual alkali concentration to at least 4.0 gpl at the end of the first reaction time. The temperature of the slurry is raised to at least 170.degree. F. followed by mixing for a second reaction time of typically 55 additional minutes.
摘要:
A method and apparatus are provided for removing protective coating material from a fiber optic cable including one or more optical fibers. A stream of hot inert gas is directed onto the cable to soften the protective coating material and blow it from the cable. The stream can be moved relative to the cable until the desired length of coating material has been removed.
摘要:
A plumbing assembly is provided which is formed from a plurality of rigid pipe sections, connected between a movable sink and a relatively fixed fluid outlet. These pipe sections are joined together by swivel fittings that permit the pipe sections to rotate with respect to each other. In this manner, different distances between the sink and the fluid outlet are accommodated by a folding and unfolding motion of the plumbing assembly in a minimum of space behind the wall of an expandable portion of the room. Fluid supply lines for providing hot and cold water to the sink faucet can be mounted within the same spacial area by means of similar swivel fittings that create an offset parallelogram structure. The lengths of at least the fluid draining pipe sections and the supporting structure behind the wall are selected such that a downward slope is maintained over the entire fluid flow path between the sink and the fluid outlet regardless of sink position during usage.
摘要:
A laser generator and a receiver are used to transmit and receive a laser beam for reflection by the leading edge of existing printing on ware to establish an indexing reference for printing to be newly applied to the ware. The receiver provides an electrical signal to disconnect drive motor from a drive train and engage a non-operating screen drive train to stop rotation of the ware. After indexing has been accomplished, the printing cycle is initiated causing silk screen to reciprocate in a synchronous speed with rotation of the ware while a squeegee establishes line contact with a screen to force printing medium through open spaces on the screen onto the ware.