Abstract: An article and a method for making contact areas (221, 222, 230) on an optical waveguide (100, 200) are provided. A waveguide (100, 200) having a first surface (112) and a second surface (113) with a first indent (101) located on the first surface (112) and a second indent (102) located on the second surface (113) and a groove (104) is made interconnecting the first and second indents (101, 102). A low temperature melting member (111) is placed in the first indent (101) on the first surface (112) and is melted, thereby flowing the low temperature melting member into the groove (104) and into the second indent (102) located on the second surface (113).

Abstract: An interconnect substrate (116) having a surface (105) with a plurality of electrical tracings (115) disposed thereon. A photonic device (114) having a working portion (118) and having a contact (106) electrically coupled to one of the plurality of electrical tracings (115) disposed on the interconnect substrate (116). A molded optical portion (112) that encapsulates the photonic device (114) is formed. The molded optical portion (112) forms a surface (120). The surface (120) passes light between the photonic device (114) and an optical fiber(103). Alignment of optical fiber 103 is achieved by an alignment apparatus (117) that is formed in the molded optical portion (112).

Abstract: A substrate (102) having a surface (103) with a plurality of electrical traces (106) disposed thereon is provided. A photonic device (111) is operably mounted on the electrical traces (106) of the substrate (102). An optical portion (121) having a reflective surface (118) that is embedded in the optical portion (121) for directing light to and from the working portion of the photonic device (111) is disposed on the surface (103) of the substrate (102), thereby encapsulating the photonic device (111) in the optical portion (121).

Abstract: An optical read/write head including a cladding layer defining a plurality of parallel, spaced apart optical cores extending therethrough, the cladding layer and cores defining optical input/output surfaces for each optical core and diffraction elements positioned in overlying relationship with the optical input/output surfaces for each optical core. Two rows of the cores being utilized to carry light from sources and the diffraction elements diffracting the light at an angle onto a document, the light reflecting from the document into a third row of cores having diffraction elements that collimate and focus the light onto light detectors.

Abstract: A first molded optical portion having a major surface with a free space and a first and a second plurality of core regions are disposed on the major surface of the first optical portion. A first and a second plurality of ends of the first and the second plurality of core regions are located at a first and a second end surfaces of the molded optical portion. A free space area is located between the first and the second plurality of core regions.

Abstract: Binary current signals are differentiated to produce pulses indicative of the front and rear edges. The pulses are amplified and utilized in a latch to regenerate binary voltage signals which are amplified replicas of the input signals. Because of the input differentiator the sensitivity of the circuit remains high while the latched output makes the circuit burst mode ready.

Abstract: A method for manufacturing a molded waveguide (50) is provided. A first cladding layer (20) is provided. Channels (21) are formed in the first cladding layer (20). A second cladding layer (40) is subsequently provided. The channels (21) in the first cladding layer (20) are then filled with an optically transparent polymer. The second cladding layer (40) is subsequently affixed over the channels (21) of the first cladding layer (20), thereby enclosing the channels (21).

Abstract: A plurality of electrical traces and a light emitting device having a working portion is disposed on an interconnect substrate. A first optical portion having a first surface, a second surface, and a tapered surface is disposed onto the interconnect substrate. The first surface of the optical portion covers the working portion of the light emitting device, a second surface of the first optical portion is positioned parallel to the working portion of the light emitting device, and the tapered surface extends from the second surface toward the working portion of the light emitting device for guiding light emitted from the working portion of the light emitting device to the second surface.

Abstract: An interconnect substrate with a surface having a plurality of electrical tracings is provided. A photonic device having a working portion and contact electrically coupled to one of the plurality of electrical tracings is disposed on the interconnect substrate. A molded optical portion is formed that encapsulates the photonic device, as well as forming a reflective surface that directs light between an external light communicating structure and the photonic device.

Abstract: An optical/electrical connector including a molded base having a well and a plurality of grooves extending from the well to a first outer edge of the base and alignment guides associated with the grooves at the first outer edge. The base further having external electrical connections with first ends exposed and positioned in the well and second ends extending outwardly beyond a second outer edge of the base. An array of photonic components is positioned in the well and each aligned with a separate groove. The array is electrically coupled to the exposed first ends of the external electrical connections of the base. The grooves are filled with a plastic material to form optical waveguides from the optical ports to the first outer edge.

Abstract: A method of splicing a pair of optical fibers including, molding a base with a groove therein extending from a first inlet to a second inlet with a tapered portion at each inlet to act as a guide during the positioning of the fibers. Positioning the ends of the optical fibers in the inlets of the groove and introducing an index matching fluid into the groove. A cover having a hole therethrough may be positioned over the groove and the fluid introduced through the hole. The fluid is cured to hold the fibers fixedly in the groove and form an optical link therebetween. The cover may be molded with a perpendicular groove therein and photonic devices mounted in the cover groove.

Abstract: A method for manufacturing a molded waveguide (50) is provided. A first cladding layer (20) is provided. Channels (21) are formed in the first cladding layer (20). A second cladding layer (40) is subsequently provided. The channels (21) in the first cladding layer (20) are then filled with an optically transparent polymer. The second cladding layer (40) is subsequently affixed over the channels (21) of the first cladding layer (20), thereby enclosing the channels (21).

Abstract: A molded base (101) having a surface (102) and an edge surface (103) with an alignment ferrule (107, 108). A plurality of electrical tracings (110) are disposed on the surface (102) of the molded base (101). A plurality of core regions (120) are formed from an organic optical media having a first end (143) and a second end (144) positioned on the surface (102) of the molded base (101). The first end (143) of the core region (122, 121) begin at the edge (103) of the molded base (101) with the second end (144) extending onto the surface (102) of the molded base (101). A photonic device (130, 131, 430) is mounted onto the surface (102) of the molded base (101) with the second end (144) of the core region (122, 121,) operably coupled to the photonic device (130, 131, and 430) and electrically coupled to one of the plurality of electrical tracings (110).

Abstract: A core region (107) with an end (114) and a cladding region (108) is formed. The cladding region (108) surrounds the end (114) of the core region (107) forming a surface (119) having a lens device (102) therein. The end (114) of the core region (107) is positioned with a selected distance (118) from the lens device (102) to the end (114) of the core region (107) of the waveguide (101). A light emitting device (103) having a working portion (104) is mounted on the surface (119) of the cladding region (108) with the working portion (104) of the light emitting device (103) directed over the lens device (102) for collection and focusing of light (109) from the working portion (104) of the light emitting device (103) into the end (114) of the core region (107).

Abstract: A method for molding optical waveguides (600) wherein one or more optical cores (230) are molded first with an attached support structure (206). A unitary cladding layer (601) is then molded around the cores (230) and the support structure (206) is removed to provide optical inlet/outlets to the cores (230). The ends of the cores (605) where the support structure (206) is removed may require subsequent polishing.

Abstract: An optical electronic coupling device (100) including a molded waveguide (101, 301, 401) having a plurality of core regions (105) surrounded by a cladding region (103). Cross-sections of the core regions (105) are exposed in an opening (113, 213,313) at one end of the waveguide. An optical cable (102, 303) having a plurality of optical fibers (107, 108, 109, 300) with core regions (123, 124, 125) is inserted into the opening (113, 213, 313), thereby aligning the core regions (123, 124, 125) of the optical fibers (107, 108, 109, 300) with the exposed cross-sections (122) of the core regions (105) of the optical electronic device (100).

Abstract: A common base amplifier (29) has an input (31) and an output (32). A transistor (33) has an emitter coupled to the input (31) of the amplifier (29), a collector coupled to the output (32) of the amplifier (29), and a base coupled to a voltage reference (34) provides low input impedance and unity current gain. A control circuit (38) controls a first bias circuit (36) and a second bias circuit (37). The second bias circuit (37) is coupled to the collector of the transistor (33) and provides a bias current for the transistor (33) while transistor (33) outputs the bias current which is received by the first bias circuit (36). Control circuit (38) determines the current magnitude for both the first bias circuit (36) and the second bias circuit (37) and ensures that the current magnitudes are maintained at a fixed ratio.

Abstract: An article and a method for making contact areas (221, 222, 230) on an optical waveguide (100, 200) are provided. A waveguide (100, 200) having a first surface (112) and a second surface (113) with a first indent (101) located on the first surface (112) and a second indent (102) located on the second surface (113) and a groove (104) is made interconnecting the first and second indents (101, 102). A low temperature melting member (111) is placed in the first indent (101) on the first surface (112) and is melted, thereby flowing the low temperature melting member into the groove (104) and into the second indent (102) located on the second surface (113).

Abstract: A method of coupling an optical fiber to a desired optical input wherein the optical fiber is pre-coated with a magnetic material and then placed in an elongated groove in a base, one end of which groove terminates at the desired optical input. A magnetic field is applied to hold the pre-coated optical fiber firmly in place while it is permanently mounted by some means such as soldering or an adhesive.

Abstract: A molded optical waveguide having electrical conductors molded therein for contacting an optical device mounted at one end of the waveguide and providing external electrical access to the optical device at exposed sides of the waveguide. The waveguide and assembled optical device is mounted on a printed circuit board or the like and contacted by lead wires.