Abstract: Embodiments of the present invention describe a waveguide-based photodetector device and its methods of fabrication. The waveguide photodetector device comprises a substrate having a cladding structure formed thereon. A waveguide element for receiving optical signals is disposed within the cladding structure. A portion of the waveguide element is encapsulated by a photodetector element that detects the optical signal received by the waveguide element and generates an electrical signal based on the optical signal. Encapsulating the waveguide element in the photodetector element improves coupling efficiency and enables a waveguide photodetector device with higher speeds and higher responsivity.

Abstract: A photosensitive device for enabling high speed detection of electromagnetic radiation. The device includes recessed electrodes for providing a generally homogeneous electric field in an active region. Carriers generated in the active region are detected using the recessed electrodes.

Abstract: Embodiments of the present invention describe a waveguide-based photodetector device and its methods of fabrication. The waveguide photodetector device comprises a substrate having a cladding structure formed thereon. A waveguide element for receiving optical signals is disposed within the cladding structure. A portion of the waveguide element is encapsulated by a photodetector element that detects the optical signal received by the waveguide element and generates an electrical signal based on the optical signal. Encapsulating the waveguide element in the photodetector element improves coupling efficiency and enables a waveguide photodetector device with higher speeds and higher responsivity.

Abstract: A photosensitive device for enabling high speed detection of electromagnetic radiation. The device includes recessed electrodes for providing a generally homogeneous electric field in an active region. Carriers generated in the active region are detected using the recessed electrodes.

Abstract: A photosensitive device for enabling high speed detection of electromagnetic radiation. The device includes recessed electrodes for providing a generally homogeneous electric field in an active region. Carriers generated in the active region are detected using the recessed electrodes.

Abstract: A measurement system is provided that includes a probe device having an integrated amplifier. The integrated amplifier may be a transimpedence amplifier that amplifies input current to an output voltage.

Abstract: A waveguide includes a waveguide core that has a bottom surface and a top surface that defines an angle. The waveguide also includes a cladding layer adjacent to the bottom surface. The cladding layer has a thickness equal to or greater than an evanescent tail of a mode to be transmitted along the wave guide core.

Abstract: A photosensitive device for enabling high speed detection of electromagnetic radiation. The device includes recessed electrodes for providing a generally homogeneous electric field in an active region. Carriers generated in the active region are detected using the recessed electrodes.

Abstract: A measurement system is provided that includes a probe device having an integrated amplifier. The integrated amplifier may be a transimpedence amplifier that amplifies input current to an output voltage.

Abstract: A waveguide including a waveguide core having a top surface that defines an angle. A waveguide can include a waveguide core offset from a substrate by a cladding layer. A phototransistor includes an emitter, a collector, and a base in lateral alignment. A photodiode includes n- and p-type regions and an intrinsic substrate portion in lateral alignment. A waveguide includes a waveguide core, an attenuating layer, and a detector layer. A method for fabricating a device includes forming a cladding layer over a substrate having a detector layer formed thereon; forming an opening in the cladding layer to expose the detector layer; forming a waveguide layer over the cladding layer and the opening; removing a portion of the waveguide layer to define a waveguide core; and implanting first and second regions into the detector layer proximate the waveguide core.