163 results about "Polymer waveguide" patented technology

Novel nanowell microarrays are disclosed in optical contact with polymer waveguides wherein evanescent field associated with lightwaves propagated in the waveguide excite target substances in the nanowells either by a common waveguide or by individual waveguides. Fluid samples are conveyed to the nanowells by means of microfluidics. The presence of the target substances in fluid samples is detected by sensing fluorescent radiation generated by fluorescent tag bound to the target substances. The fluorescent tags generate fluorescent radiation as a result of their excitation by the evanescent field. One or more PMT detectors or a CCD detector are located at the side of the waveguide opposite to the nanowells. Fluorescent radiation is detected due to its coupling with the waveguide or its emission through the waveguide.

A three-dimensional ordered open-cellular structure. In one embodiment, the structure includes: a plurality of first truss elements defined by a plurality of first self-propagating polymer waveguides and extending along a first direction; a plurality of second truss elements defined by a plurality of second self-propagating polymer waveguides and extending along a second direction; and a plurality of third truss elements defined by a plurality of third self-propagating polymer waveguides and extending along a third direction. The first, second, and third truss elements interpenetrate each other at a plurality of nodes to form a continuous material, and the three-dimensional structure is self-supporting.

A micro-truss based blast protection apparatus. In one embodiment, the blast protection apparatus includes a three-dimensional (3D) ordered truss core between a first face plate and a second face plate. The 3D ordered truss core includes first truss elements defined by first self-propagating polymer waveguides and extending along a first direction, second truss elements defined by second self-propagating polymer waveguides and extending along a second direction, and third truss elements defined by third self-propagating polymer waveguides and extending along a third direction. The first, second, and third truss elements interpenetrate each other at a plurality of nodes to form a continuous material. The first, second, and third truss elements define an open space for providing a densification in response to a force applied to the first face plate and/or the second face plate, and the 3D ordered truss core is self-supporting.

A monomeric formulation for creating self-propagating polymer optical waveguides and a system and a method of using the same. The monomeric formulation includes a plurality of unsaturated molecules, a molecule having a structure of R—X—H (e.g., X═O, S, N), and a photoinitiator. The monomeric formulation can further include a free radical inhibitor. The system includes a light source, a reservoir having a monomeric formulation and a patterning apparatus configured to guide a light beam from the light source into the monomeric formulation to form at least one self-propagating polymer waveguide.

Alignment of a single-mode polymer waveguide (PWG) array fabricated on a polymer with a silicon waveguide (SiWG) array fabricated on a silicon (Si) chip and thereby realizing an adiabatic coupling. A stub and a groove are fabricated with high precision and made to function as the absolute positioning reference to provide a self-alignment according to the groove and the stub. In a PWG patterning by photolithography, plural masks are used, but the fabrication is made along the alignment base line for mask and thus a high precision is achieved with respect to error δx. In a PWG patterning by nano imprint, a high precision in the fabrication is also achieved with respect to error δx and δy.

A composite truss armor and a method of manufacturing the same. The composite truss armor includes a filler material and a three-dimensional (3D) ordered truss structure. The 3D ordered truss structure includes: a plurality of first truss elements defined by a plurality of first self-propagating polymer waveguides and extending along a first direction; a plurality of second truss elements defined by a plurality of second self-propagating polymer waveguides and extending along a second direction; and a plurality of third truss elements defined by a plurality of third self-propagating polymer waveguides and extending along a third direction. The first, second, and third ordered truss elements interpenetrate each other at a plurality of nodes to form a continuous material. The first, second, and third truss elements define an open space. The filler material occupies at least a portion of the open space, and the 3D ordered truss structure is self-supporting.

The invention relates to a process a process for forming single-mode, organic waveguides employing organic polymeric materials. The process reduces dissolved and gaseous oxygen content to very low quantities, resulting in production of waveguides having superior properties and manufacturability. Also provided is a process for preventing loss of light due to cores having flared ends. A waveguide is produced by sequentially a layer of a liquid, photosensitive buffer and clad composition to a surface of a substrate; deoxygenating under vacuum; overall exposing under an inert gas actinic radiation to partially polymerize the compositions below a full curing. Coating a photosensitive core composition to the clad composition; deoxygenating under vacuum, covering with an inert gas atmosphere; positioning a photomask above, but not in contact with the core layer; imagewise exposing the core through a photomask pattern to actinic radiation to partially polymerize the core composition; developing core; coating a photosensitive overclad composition over the image areas of the core composition; deoxygenating under vacuum; overall exposing the overclad composition, under inert gas to actinic radiation to substantially fully cure the optional buffer composition, the underclad composition, the core composition and the clad composition.

An integrated module for a fiber optic gyroscope system includes a fiber optic sensing coil arranged to sense rotations about a sensing axis via the Sagnac effect comprises a substrate, an optical waveguide formed on the substrate, a light source comprising a doped waveguide formed on the substrate. The light source and the optical waveguide are arranged to produce counterpropagating light waves in the fiber optic sensing coil. The light source may be formed as a rare earth doped polymer waveguide or as a rare earth doped glass waveguide.

The invention relates to a polymer waveguide photoswitch array based on array waveguide grating structure, relating to a single-wavelength polymer waveguide photoswitch array device, where in the waveguide photoswitch array: input end of input plate waveguide is connected with output end of input waveguide, output end of the input plate waveguide is connected with input end of array waveguide grating composed of bending waveguides; the top of the array waveguide grating is equipped with current controlled electrode group, the two ends of the electrode group are connected with current input and output leads to compose temperature controller, input end of output plate waveguide is connected with output end of the array waveguide grating, output end of the output plate waveguide is connected with input end of the output waveguide, and on the condition that signals of the same wavelength are inputted, the device implements function of photoswitch array in the control of different currents. And the device will reduce the size of the routine photoswitch array of cascaded structure and simplify device driver.

The invention discloses an optical fiber and silicon waveguide coupling structure based on polymer waveguides and a manufacturing method of the optical fiber and silicon waveguide coupling structure. The optical fiber and silicon waveguide coupling structure based on the polymer waveguides comprises an SOI wafer and an optical fiber arranged on the SOI wafer, the polymer straight waveguide and the polymer tapered waveguide are arranged on a buried oxide layer of the SOI wafer in sequence from right to left, the narrower end of the polymer tapered waveguide is connected with the polymer straight waveguide, and the wider end of the polymer tapered waveguide is aligned with a fiber core of the optical fiber; the silicon waveguide is arranged on upper layer silicon, the left end of the silicon waveguide is a back taper structure with a gradually changing width, the right end of the silicon waveguide is of a straight silicon waveguide back taper structure, part of the straight silicon waveguide wrapped in the polymer straight waveguide, and other parts of the straight silicon waveguide is covered with a silicon dioxide covering layer; a V-shaped groove is formed in the top surface of the left end of the SOI wafer, the silicon dioxide covering layer, the upper layer silicon and the buried oxide layer sequentially penetrate through the V-shaped groove in the depth direction, and the bottom end of the V-shaped groove is located at substrate silicon; the optical fiber is fixed in the V-shaped groove. The optical fiber and silicon waveguide coupling structure based on the polymer waveguides and the manufacturing method of the optical fiber and silicon waveguide coupling structure not only improve coupling efficiency, reduce process complexity and guarantee the reliability of the optical fiber coupling structure.

Singulating polymer waveguides made on a substrate using photolithography. A first polymer cladding layer is formed and patterned on a first surface of a substrate to form a plurality of bottom cladding elements. Each of the bottom cladding elements are structurally independent from the other bottom cladding elements on the substrate. A second polymer layer is then formed and patterned on each of the bottom cladding elements to form a plurality of waveguide cores on each of the plurality of bottom cladding elements respectively. A third polymer top cladding layer is next formed over the plurality of waveguide cores on each of the bottom cladding elements respectively. In various embodiments, the individual waveguides can be separated from the substrate by using a selective tape or by cutting or sawing the substrate between the bottom cladding elements. The bottom cladding elements, the plurality of waveguide cores formed from the patterned second polymer layer, and the top cladding layer forming a plurality of polymer waveguides on the substrate.

Methods for wavelength filtering and structures for accomplishing the same. Wavelength filtering includes forming grooves in a waveguide to define angled surfaces in a path of the waveguide; forming a reflective layer on the angled surfaces; depositing cladding material on top of the waveguide and on the angled surfaces; forming a filter layer on an active region of an opto-electronic device, which transmits a single wavelength and reflects other wavelengths used; depositing the opto-electrical device on the cladding layer such that the filter layer is aligned with a point of incidence of a light beam reflected from the reflective layer; and electrically bonding the opto-electronic device to vias in the waveguide structure.

The invention belongs to the technical field of polymer optical waveguide amplifier manufacturing and particularly relates to a method for manufacturing an organic polymer flexible optical waveguide amplifier by ultraviolet nanoimprint lithography. The method includes spin coating a polymer bottomcladding material on a silicon or polymer template which is high-precision and has a projecting waveguide pattern, performing ultraviolet nanoimprint curing, spin coating a soluble complex material core material with an obtained thin film which has polymer grooves to serve as a substrate, performing vacuum drying, then spin coating a polymer topcladding material, and obtaining the polymer waveguide amplifier after ultraviolet curing. According to the organic polymer optical waveguide amplifier and the manufacturing method thereof, not only is the refractivity of the polymer core material and the polymer cladding materials easily controlled, but also thickness of each layer of materials is easily controlled. The organic polymer optical waveguide amplifier is low in cost, finished product rate is high, the accuracy is high, and the organic polymer optical waveguide amplifier is suitable for mass production.

A method of fabricating a polymer waveguide (PWG) is presented. The method includes preparing a polymer waveguide (PWG) sheet having a surface with partially exposed cores and partially exposed cladding, the cladding covering the cores and preparing a first dicing tape, the first dicing tape being an ultraviolet (UV) cut type dicing tape defining separation lines on a back side thereof. The method further includes placing the partially exposed cores of the PWG sheet on the first dicing tape to prevent the surface of the PWG sheet from atmospheric contaminations and placing a tape side of the first dicing tape attached to the PWG sheet on a second dicing tape.