Abstract:
A photonic integrated circuit PIC (16) comprising a semiconductor substrate layer and a plurality of tunable Distributed Feedback lasers (1, 100, 401), wherein each DFB laser of the PIC has a phase section in passive material longitudinally located between Bragg sections in active material, wherein the tuning device of each DFB laser includes an electrode (15) arranged on the phase section, the electrode being connected to an electrical source for applying an electrical signal to the phase section, the electrode being able to inject current in the phase section of the DFB laser to tune the emission wavelength of said DFB laser, and wherein the current injection by the electrode in the phase section causes an optical path variation in the phase section and wherein the amplitude of the optical path variation in the phase section is equal to or greater than the optical path of one grating pitch of the Bragg grating.
Abstract:
A method is provided for the integration of an optical gain material into a Complementary metal oxide semi conductor device, the method comprising the steps of: configuring a workpiece from a silicon wafer upon which is disposed an InP wafer bearing an epitaxy layer; mechanically removing the InP substrate; etching the InP remaining on epitaxy layer with hydrochloric acid; depositing at least one Oxide pad on revealed the epitaxy layer; using the Oxide pad as a mask during a first pattern etch removing the epitaxy to an N level; etching with a patterned inductively coupled plasma (ICP) technique; isolating the device on the substrate with additional pattern etching patterning contacts, appl ing the contacts.
Abstract:
The invention concerns a multilayer monolithic electronic device comprising at least a first layer (46) for carrying an electrical information arranged above at least a second layer (43) for carrying an optical information and electrical and/or optical connecting means.
Abstract:
Methods for realizing integrated lasers and photonic integrated circuits on complimentary metal-oxide semiconductor (CMOS)-compatible silicon (Si) photonic chips, potentially containing integrated electronics, are disclosed. The integration techniques rely on light coupling with integrated light coupling elements such as turning mirrors, lenses, and surface grating couplers. Light is coupled from between two or more substrates using the light coupling elements. The technique can realize integrated lasers on Si where a gain flip chip (the second substrate) is bonded to a Si chip (the first substrate) and light is coupled between a waveguide in the gain flip chip to a Si waveguide by way of a turning mirror or grating coupler in the flip chip and a grating coupler in the Si chip. Integrated lenses and other elements such as spot-size converters can also be incorporated to alter the mode from the gain flip chip to enhance the coupling efficiency to the Si chip. The light coupling integration technique also allows for the integration of other components such as modulators, amplifiers, and photodetectors. These components can be waveguide-based or non-waveguide based, that is to say, surface emitting or illuminating.
Abstract:
A device may include a first substrate. The device may include an optical source. The optical source may generate light when a voltage or current is applied to the optical source. The optical source may be being provided on a first region of the first substrate. The device may include a second substrate. A second region of the second substrate may form a cavity with the first region of the first substrate. The optical source may extend into the cavity. The device may include an optical interconnect. The optical interconnect may be provided on or in the second substrate and outside the cavity. The optical interconnect may be configured to receive the light from the optical source.
Abstract:
A device may include a first substrate. The device may include an optical source. The optical source may generate light when a voltage or current is applied to the optical source. The optical source may be being provided on a first region of the first substrate. The device may include a second substrate. A second region of the second substrate may form a cavity with the first region of the first substrate. The optical source may extend into the cavity. The device may include an optical interconnect. The optical interconnect may be provided on or in the second substrate and outside the cavity. The optical interconnect may be configured to receive the light from the optical source.
Abstract:
A photonic device and a method of manufacturing a photonic device, wherein on a doped semiconductor substrate (DSS), by monolithic integration, at least one active component (AC1) and at least one passive component (PC) coupled together are produced, each active component (AC1) being laterally buried by means of a semi-insulating semiconductor (SIS) and vertically buried by means of a doped semiconductor cladding layer (CL), in order to have a heterojunction structure, and each passive component (PC) being laterally and vertically buried by means of this semi-insulating semiconductor (SIS). The active components (AC1,AC2) comprise an intrinsic layer (IL) in addition to the layers of the passive components (PC).
Abstract:
A frequency selective light coupling and decoupling device comprising a photon crystal structure component (10) wherein a wave guide (14) is formed, whereby at least one longitudinal side comprises a small number of rows of periodic elements (12) of the photon crystal in order to form coupling areas between the wave guide (14) and the outside of the photon crystal at coupling frequencies which are determined in particular by the width of the wave guide (14) and/or by the spatial period of the elements (12) of the photon crystal.