Abstract: A coupler facilitates coupling of optical signals from an interposer configured having an optical signal source to one or more optical fiber in an FAU coupled to the coupler. Tongue and groove alignment features formed self-aligned with waveguide cores on the coupler facilitate alignment of waveguide cores on the coupler with waveguide cores on the interposer. FAU alignment aids formed on the coupler facilitate alignment of optical fibers mounted in an FAU to waveguide cores of the coupler. The tongue and groove alignment features and FAU alignment features, among other alignment features, are formed from the core layer of a planar waveguide layer of the coupler. Couplers configured having a cavity enable the coupling of an optical isolator within the waveguide layer of the coupler wherein one or more lens array may be formed in the cavity to couple optical signals across the cavity and the optical isolator.

Abstract: The invention provides an authentication unit for reading identification and/or authentication information from a tag or object. The authentication unit includes a near-field reader configured to read a first identification feature based on inherent disorder, and a far-field reader configured to read a second identification feature, such as a bar code, optical characters, or an RFID tag. The near-field and far-field readers may be combined in a single integrated scanning module, which also includes circuitry for receiving signals from the readers, and an interface for communicating with a host device.

Abstract: The invention provides an authentication unit for reading identification and/or authentication information from a tag or object. The authentication unit includes a near-field reader configured to read a first identification feature based on inherent disorder, and a far-field reader configured to read a second identification feature, such as a bar code, optical characters, or an RFID tag. The near-field and far-field readers may be combined in a single integrated scanning module, which also includes circuitry for receiving signals from the readers, and an interface for communicating with a host device.

Abstract: The invention provides an authentication unit for reading identification and/or authentication information from a tag or object. The authentication unit includes a near-field reader configured to read a first identification feature based on inherent disorder, and a far-field reader configured to read a second identification feature, such as a bar code, optical characters, or an RFID tag. The near-field and far-field readers may be combined in a single integrated scanning module, which also includes circuitry for receiving signals from the readers, and an interface for communicating with a host device.