摘要:
An apparatus for transmitting optical signals includes an interposer for supporting opto-electronic components used to create optical output signals. An enclosure is used to encapsulate the populated interposer assembly and includes a silicon sidewall and a transparent lid. The sidewall is etched to include a turning mirror feature with a reflecting surface at a predetermined angle θ, the turning mirror disposed to intercept the optical output signals and re-direct them through the enclosure's transparent lid. A coverplate is disposed over and aligned with the enclosure, where the coverplate includes a silicon sidewall member that is etched to include a turning mirror element with a reflecting surface at the same angle θ as the enclosure's turning mirror element. The optical signals re-directed by the enclosure then pass through the transparent lid of the enclosure, impinge the turning mirror element of the coverplate, and are then re-directed along the longitudinal axis.
摘要:
An apparatus for providing self-aligned optical coupling between an opto-electronic substrate and a fiber array, where the substrate is enclosed by a transparent lid such that the associated optical signals enter and exit the arrangement through the transparent lid. The apparatus takes the form of a two-part connectorized fiber array assembly where the two pieces uniquely mate to form a self-aligned configuration. A first part, in the form of a plate, is attached to the transparent lid in the area where the optical signals pass through. The first plate includes a central opening with inwardly-tapering sidewalls surrounding its periphery. A second plate is also formed to include a central opening and has a lower protrusion with inwardly-tapering sidewalls that mate with the inwardly-tapering sidewalls of the first plate to form the self-aligned connectorized fiber array assembly. The fiber array is then attached to the second plate in a self-aligned fashion.
摘要:
A wafer scale implementation of an opto-electronic transceiver assembly process utilizes a silicon wafer as an optical reference plane and platform upon which all necessary optical and electronic components are simultaneously assembled for a plurality of separate transceiver modules. In particular, a silicon wafer is utilized as a “platform” (interposer) upon which all of the components for a multiple number of transceiver modules are mounted or integrated, with the top surface of the silicon interposer used as a reference plane for defining the optical signal path between separate optical components. Indeed, by using a single silicon wafer as the platform for a large number of separate transceiver modules, one is able to use a wafer scale assembly process, as well as optical alignment and testing of these modules.
摘要:
An opto-electronic assembly is provided comprising a substrate (generally of silicon or glass) for supporting a plurality of interconnected optical and electrical components. A layer of sealing material is disposed to outline a defined peripheral area of the substrate. A molded glass lid is disposed over and bonded to the substrate, where the molded glass lid is configured to create a footprint that matches the defined peripheral area of the substrate. The bottom surface of the molded glass lid includes a layer of bonding material that contacts the substrate's layer of sealing material upon contact, creating a bonded assembly. In one form, a wafer level assembly process is proposed where multiple opto-electronic assemblies are disposed on a silicon wafer and multiple glass lids are molded in a single sheet of glass that is thereafter bonded to the silicon wafer.
摘要:
A wafer scale implementation of an opto-electronic transceiver assembly process utilizes a silicon wafer as an optical reference plane and platform upon which all necessary optical and electronic components are simultaneously assembled for a plurality of separate transceiver modules. In particular, a silicon wafer is utilized as a “platform” (interposer) upon which all of the components for a multiple number of transceiver modules are mounted or integrated, with the top surface of the silicon interposer used as a reference plane for defining the optical signal path between separate optical components. Indeed, by using a single silicon wafer as the platform for a large number of separate transceiver modules, one is able to use a wafer scale assembly process, as well as optical alignment and testing of these modules.
摘要:
An apparatus for providing single mode optical signal coupling between an opto-electronic transceiver and a single mode optical fiber array takes the form of a lens array and a ferrule component. The lens array includes a plurality of separate lens element disposed to intercept a like plurality of single mode optical output signal from the opto-electronic transceiver and provide as an output a focused version thereof. The ferrule component includes a plurality of single mode fiber stubs that are passively aligned with the lens array and support the transmission of the focused, single mode optical output signals towards the associated single mode optical fiber array.
摘要:
An apparatus for providing releasable attachment between a fiber connector and an opto-electronic assembly, the opto-electronic assembly utilizing an interposer substrate to support a plurality of opto-electronic components that generates optical output signals and receives optical input signals. An enclosure is used to cover the interposer substrate and includes a transparent region through which the optical output and input signals pass unimpeded. A magnetic connector component is attached to the lid and positioned to surround the transparent region, with a fiber connector for supporting one or more optical fibers magnetically attached to the connector component by virtue of a metallic component contained in the fiber connector. This arrangement provides releasable attachment of the fiber connector to the enclosure in a manner where the optical output and input signals align with the optical fibers in the connector.
摘要:
A coupling arrangement for allowing multiple wavelengths to be coupled into and out of a relatively thin silicon optical waveguide layer utilizes a diffractive optical element, in the form of a volume phase grating, in combination with a prism coupling structure. The diffractive optical element is formed to comprise a predetermined modulation index sufficient to diffract the various wavelengths through angles associated with improving the coupling efficiency of each wavelength into the silicon waveguide. The diffractive optical element may be formed as a separate element, or formed as an integral part of the coupling facet of the prism coupler.
摘要:
A wafer-level testing arrangement for opto-electronic devices formed in a silicon-on-insulator (SOI) wafer structure utilizes a single opto-electronic testing element to perform both optical and electrical testing. Beam steering optics may be formed on the testing element and used to facilitate the coupling between optical probe signals and optical coupling elements (e.g., prism couplers, gratings) formed on the top surface of the SOI structure. The optical test signals are thereafter directed into optical waveguides formed in the top layer of the SOI structure. The opto-electronic testing element also comprises a plurality of electrical test pins that are positioned to contact a plurality of bondpad test sites on the opto-electronic device and perform electrical testing operations. The optical test signal results may be converted into electrical representations within the SOI structure and thus returned to the testing element as electrical signals.
摘要:
An arrangement for actively controlling, in two dimensions, the manipulation of light within an SOI-based optical structure utilizes doped regions formed within the SOI layer and a polysilicon layer of a silicon-insulator-silicon capacitive (SISCAP) structure. The regions are oppositely doped so as to form an active device, where the application of a voltage potential between the oppositely doped regions functions to modify the refractive index in the affected area and alter the properties of an optical signal propagating through the region. The doped regions may be advantageously formed to exhibit any desired “shaped” (such as, for example, lenses, prisms, Bragg gratings, etc.), so as to manipulate the propagating beam as a function of the known properties of these devices. One or more active devices of the present invention may be included within a SISCAP formed, SOI-based optical element (such as, for example, a Mach-Zehnder interferometer, ring resonator, optical switch, etc.) so as to form an active, tunable element.