Reflow compatible optical packaging

    公开(公告)号:US10816737B2

    公开(公告)日:2020-10-27

    申请号:US16225248

    申请日:2018-12-19

    Abstract: In various embodiments, optical fibers may be placed into V-shaped grooves in a substrate. A lid may then be placed on top of the optical fibers to hold them accurately in place, and the lid may be attached to the substrate using a reflow solder technique. Epoxy may then be applied as a strain relief. Because the V-shaped grooves and optical waveguides are manufactured with precision on the same substrate, precise alignment between these two may be achieved. Because the epoxy is applied after reflow, the epoxy may not be exposed to reflow temperatures, which might otherwise cause the epoxy to distort during the cure process.

    Metasurface devices for display and photonics devices

    公开(公告)号:US10564330B2

    公开(公告)日:2020-02-18

    申请号:US16229751

    申请日:2018-12-21

    Abstract: Disclosed herein are display and photonic devices utilizing metasurfaces. An optical device comprising an optical component and an optical transmission medium is disclosed. A waveguide couples the optical component and the optical transmission medium. A metasurface is disposed on an end of the waveguide and arranged to increase an optical coupling between the waveguide and the optical transmission medium. Additionally, a display comprising a number of light emitting elements and a metasurface for each of the light emitting elements. The metasurface arranged to eliminate screen door effect in virtual reality display systems.

    Monolithic physically displaceable optical waveguides

    公开(公告)号:US10310196B2

    公开(公告)日:2019-06-04

    申请号:US14917933

    申请日:2013-12-03

    Abstract: A portion of an optical waveguide extending laterally within a photonic integrated circuit (PIC) chip is at least partially freed from the substrate to allow physical displacement of a released waveguide end relative to the substrate and relative to an adjacent photonic device also fabricated in the substrate. The released waveguide end may be displaced to modulate interaction between the photonic device and an optical mode propagated by the waveguide. In embodiments where the photonic device is an optical coupler, employing for example an Echelle grating or arrayed waveguide grating (AWG), mode propagation through the coupler may be modulated via physical displacement of the released waveguide end. In one such embodiment, thermal sensitivity of an integrated optical wavelength division multiplexer (WDM) is reduced by displacing the released waveguide end relative to the coupler in a manner that counters a temperature dependence of the optical coupler.

    FEEDBACK CONTROLLED CLOSED LOOP ON-CHIP ISOLATOR

    公开(公告)号:US20180031873A1

    公开(公告)日:2018-02-01

    申请号:US15221436

    申请日:2016-07-27

    CPC classification number: G02F1/0955 G02B6/2746 G02F1/092

    Abstract: Embodiments herein relate to a photonic integrated circuit (PIC) with an on-chip optical isolator. The PIC may comprise a laser, a waveguide coupled with the laser, and a closed loop resonator coupled to the laser through the waveguide. A magneto-optical (MO) layer is over and in contact with the waveguide and the closed loop resonator. The closed loop resonator may comprise a first polarization rotator (PR) and a second PR. A light from the laser in transverse electric (TE) mode through the waveguide is rotated in the first PR to a light in transverse magnetic (TM) mode, and the light in TM mode is rotated in the second PR to light in TE mode. The isolator may further comprise a micro-heater over or along a side of the waveguide and separated from the closed loop resonator; and a feedback control loop connected to the closed loop resonator and the micro-heater.

    Opto-mechanical inertial sensor
    26.
    发明授权

    公开(公告)号:US09778042B2

    公开(公告)日:2017-10-03

    申请号:US14106158

    申请日:2013-12-13

    Abstract: Embodiments of the present disclosure are directed towards a micro-electromechanical system (MEMS) sensing apparatus, including a laser arrangement configured to generate a light beam, a first waveguide configured to receive and output the light beam, and a second waveguide aligned endface to endface with the first waveguide. The second waveguide may be configured to receive at least a portion of the light beam from the first waveguide via optical coupling through the aligned endfaces. Either the first or second waveguide may be configured to be moveable in response to an inertial change of the apparatus, wherein movement of the first or second waveguide causes a corresponding change in light intensity of the portion of the light beam, the change in light intensity indicating a measure of the inertial change. Other embodiments may be described and/or claimed.

    Apparatus, method and system for spectrometry with a displaceable waveguide structure
    27.
    发明授权
    Apparatus, method and system for spectrometry with a displaceable waveguide structure 有权
    具有位移波导结构的光谱仪的装置,方法和系统

    公开(公告)号:US09500827B2

    公开(公告)日:2016-11-22

    申请号:US14317132

    申请日:2014-06-27

    Abstract: Techniques and mechanisms for a monolithic photonic integrated circuit (PIC) to provide spectrometry functionality. In an embodiment, the PIC comprises a photonic device, a first waveguide and a second waveguide, wherein one of the first waveguide and the second waveguide includes a released portion which is free to move relative to a substrate of the PIC. During a metering cycle to evaluate a material under test, control logic operates an actuator to successively configure a plurality of positions of the released portion relative to the photonic device. In another embodiment, light from the first waveguide is variously diffracted by a grating of the photonic device during the metering cycle, where portions of the light are directed into the second waveguide. Different wavelengths of light diffracted into the second waveguide may be successively detected, for different positions of the released portion, to determine spectrometric measurements over a range of wavelength.

    Abstract translation: 单片光子集成电路(PIC)提供光谱功能的技术和机制。 在一个实施例中,PIC包括光子器件,第一波导和第二波导,其中第一波导和第二波导中的一个包括相对于PIC的衬底自由移动的释放部分。 在用于评估被测材料的计量循环期间,控制逻辑操作致动器以相对于光子器件连续配置释放部分的多个位置。 在另一个实施例中,来自第一波导的光在计量周期期间由光子器件的光栅进行各种衍射,其中光的一部分被引导到第二波导中。 对于释放部分的不同位置,可以连续地检测衍射到第二波导中的不同波长的光,以确定波长范围上的光谱测量。

Patent Agency Ranking