Abstract: An optical interposer for providing optimal optical coupling between an optical transceiver interface and an external optical interface includes an interposer photonic integrated circuit (PIC) operably configured to couple an optical signal between the optical transceiver interface and the external optical interface, one or more waveguide based optical devices operably integrated on a common substrate and one or more of interposer input/output (I/O) channels operably configured with the optical transceiver interface and the external optical interface.

Abstract: An optical mode converter for coupling between photonic integrated circuit (PIC) and optical fiber of different mode sizes is illustrated. The optical mode converter includes a waveguide assembly including a Single waveguide structure, a Multi-layer waveguide structure, and a Transitional waveguide structure. The Single waveguide structure includes a single waveguide. The dimension and propagation constant of a first end, of the single waveguide, is similar to a waveguide of a photonic integrated circuit (PIC). Furthermore, the Multi-layer waveguide structure included a multi-layer waveguide. Further, the Transitional waveguide structure is formed at a transitional structure. The Transitional waveguide structure allows transition of an optical mode between the Single waveguide structure and Multi-layer waveguide structure.

Abstract: An optical interposer for providing optimal optical coupling between an optical transceiver interface and an external optical interface includes an interposer photonic integrated circuit (PIC) operably configured to couple an optical signal between the optical transceiver interface and the external optical interface, one or more waveguide based optical devices operably integrated on a common substrate and one or more of interposer input/output (I/O) channels operably configured with the optical transceiver interface and the external optical interface.

Abstract: An optical mode converter for coupling between photonic integrated circuit (PIC) and optical fiber of different mode sizes is illustrated. The optical mode converter includes a waveguide assembly including a Single waveguide structure, a Multi-layer waveguide structure, and a Transitional waveguide structure. The Single waveguide structure includes a single waveguide. The dimension and propagation constant of a first end, of the single waveguide, is similar to a waveguide of a photonic integrated circuit (PIC). Furthermore, the Multi-layer waveguide structure included a multi-layer waveguide. Further, the Transitional waveguide structure is formed at a transitional structure. The Transitional waveguide structure allows transition of an optical mode between the Single waveguide structure and Multi-layer waveguide structure.

Abstract: An optical connector includes a lens block mounted in a MPO housing and optically coupled between an optical light guide and an external coupling light guide. A first lens formed on a first surface of the lens block to totally reflect and collimate light emitting from the optical light guide to a second surface. The second surface is coated with a partial transmission coating on a transmitter side and a total reflective coating on a receiver side. A second lens formed on a third or fourth surface on the lens block for focusing light from the second surface onto the external coupling light guide.

Abstract: An optical connector includes a lens block mounted in a MPO housing and optically coupled between an optical light guide and an external coupling light guide. A first lens formed on a first surface of the lens block to totally reflect and collimate light emitting from the optical light guide to a second surface. The second surface is coated with a partial transmission coating on a transmitter side and a total reflective coating on a receiver side. A second lens formed on a third or fourth surface on the lens block for focusing light from the second surface onto the external coupling light guide.

Abstract: An optical transmitter module includes a coupling optical element configured to couple a first optical signal from a transmitting optoelectronic component to a first light guiding structure. An optical power monitor system is connected with the first light guiding structure and is provided with a beam splitter for splitting the first optical signal into a transmitted optical signal and a reflected optical signal to be directed to a receiving optoelectronic component for measuring power of the reflected optical signal.

Abstract: A photodetector for the detection of a light beam, comprising: a metal layer acting as a ground plane, a semiconductor layer covering the metal layer, wherein the semiconductor layer is made of at least two different materials forming an heterostructure, an array of metal pads covering the semiconductor layer, collecting the light beam and directing it towards the semiconductor layer, each of the metal pads, together with the semiconductor layer and the metal layer underneath it, the metal pads being interconnected by metal connection strips for conducting the detection current, wherein the semiconductor layer is completely etched in areas of the semiconductor layer that are neither covered by the metal pads nor by the connection strips, and wherein each metal pad forming an antenna for collecting incident photons of the light beam on an effective collection surface (??) of the light at least twice larger than a physical collection surface (A) of the semiconductor layer covered by said metal pad.