OPTICAL COUPLING DEVICE AND METHOD
    1.
    发明申请

    公开(公告)号:US20170343739A1

    公开(公告)日:2017-11-30

    申请号:US15604603

    申请日:2017-05-24

    IPC分类号: G02B6/34 G02B6/30 G02B6/27

    摘要: An optical coupling device can include a first birefringent layer having opposing first and second surfaces. The first birefringent layer can split incident light received at the first surface into first and second beams. The first and second beams can have respective polarization orientations that are orthogonal to each other. The first birefringent layer can propagate the first and second beams along respective first and second paths within the first birefringent layer to the second surface. The first and second beams can be spatially separated at the second surface. A redirection layer facing the second surface of the first birefringent layer can include first and second grating couplers configured to respectively redirect the first and second beams to propagate within the redirection layer as respective third and fourth beams. In some examples, the third and fourth beams can have respective polarization orientations that are parallel to each other.

    OPTO-ELECTRONIC MODULATOR UTILIZING ONE OR MORE HEATING ELEMENTS
    2.
    发明申请
    OPTO-ELECTRONIC MODULATOR UTILIZING ONE OR MORE HEATING ELEMENTS 审中-公开
    OPTO-ELECTRONIC调制器利用一个或多个加热元件

    公开(公告)号:US20170075149A1

    公开(公告)日:2017-03-16

    申请号:US15363046

    申请日:2016-11-29

    IPC分类号: G02F1/025 G02F1/01

    摘要: Described herein are methods, systems, and apparatuses to utilize an electro-optic modulator including one or more heating elements. The modulator can utilize one or more heating elements to control an absorption or phase shift of the modulated optical signal. At least the active region of the modulator and the one or more heating elements of the modulator are included in a thermal isolation region comprising a low thermal conductivity to thermally isolate the active region and the one or more heating elements from a substrate of the PIC.

    摘要翻译: 这里描述了利用包括一个或多个加热元件的电光调制器的方法,系统和装置。 调制器可利用一个或多个加热元件来控制调制光信号的吸收或相移。 至少调制器的有源区域和调制器的一个或多个加热元件被包括在包括低热导率的热隔离区域中,以将活性区域和一个或多个加热元件与PIC的衬底热隔离。

    ATHERMAL OPTICAL FILTER WITH ACTIVE TUNING AND SIMPLIFIED CONTROL
    4.
    发明申请
    ATHERMAL OPTICAL FILTER WITH ACTIVE TUNING AND SIMPLIFIED CONTROL 有权
    具有主动调谐和简化控制的高温光学滤波器

    公开(公告)号:US20140212092A1

    公开(公告)日:2014-07-31

    申请号:US13751492

    申请日:2013-01-28

    IPC分类号: G02B6/26

    摘要: Embodiments of the invention describe systems, apparatuses and methods for providing athermicity and a tunable spectral response for optical filters. Finite impulse response (FIR) filters are commonly implemented in photonic integrated circuits (PICs) to make devices such as wavelength division multiplexing (WDM) devices, asymmetric Mach-Zehnder interferometers (AMZIs) and array waveguide gratings (AWGs). Athermicity of an FIR filter describes maintaining a consistent frequency transmission spectrum as the ambient temperature changes. A tunable spectral response for an FIR filter describes changing the spectrum of an FIR filter based on its application, as well as potentially correcting for fabrication deviations from the design. In addition, embodiments of the invention reduce energy dissipation requirements and control complexity compared to prior art solutions.

    摘要翻译: 本发明的实施例描述了用于为滤光器提供静止性和可调谐光谱响应的系统,设备和方法。 有限脉冲响应(FIR)滤波器通常在光子集成电路(PIC)中实现,以制造诸如波分复用(WDM)器件,不对称马赫 - 策德尔干涉仪(AMZI)和阵列波导光栅(AWG)等器件。 FIR滤波器的散热性描述了在环境温度变化时保持一致的频率透射光谱。 用于FIR滤波器的可调谐频谱响应描述了根据其应用改变FIR滤波器的频谱,以及潜在地校正与设计的制造偏差。 此外,与现有技术的解决方案相比,本发明的实施例降低了能量耗散要求和控制复杂性。

    Adiabatic waveguide polarization converter
    6.
    发明授权
    Adiabatic waveguide polarization converter 有权
    绝热波导极化转换器

    公开(公告)号:US08855449B1

    公开(公告)日:2014-10-07

    申请号:US13966194

    申请日:2013-08-13

    摘要: Embodiments of the invention enable polarization diversity using a more general component than current polarization splitter and rotator solutions. Devices such as an optical receiver, transmitter or duplexer may utilize polarization diversity to efficiently process incoming signals regardless of the signal's polarization. Embodiments of the invention may be described as enabling polarization diversity via an adiabatic waveguide polarization converter. When utilized in an optical system of discrete components or in a photonic integrated circuit (PIC), this adiabatic waveguide polarization converter may receive an unknown single-mode polarization of light. This light may, for example, originate from a remote location and come through a single mode fiber. As described in further detail herein, embodiments of the invention reduce the requirements and component complexity for polarization handling for polarization diversity systems. By reducing the component complexity, insertion loss is reduced, device footprint is reduced, and device reliability and tolerances may be improved.

    摘要翻译: 本发明的实施例使用比目前的偏振分离器和旋转器解决方案更一般的分量来实现极化分集。 诸如光接收器,发射器或双工器的装置可以利用极化分集来有效地处理输入信号,而不管信号的极化。 可以将本发明的实施例描述为通过绝热波导偏振转换器实现极化分集。 当在分立元件或光子集成电路(PIC)的光学系统中使用时,该绝热波导偏振转换器可以接收未知的单模偏振光。 该光可以例如来自远程位置并通过单模光纤。 如本文进一步详细描述的,本发明的实施例降低了极化分集系统的极化处理的要求和组件复杂度。 通过降低组件复杂度,减少了插入损耗,减少了器件占用面积,并且可以提高器件的可靠性和容差。

    MULTI-VOLUME MEASURING DEVICE WITH AN INCREMENTAL MEASUREMENT FEATURE

    公开(公告)号:US20240344873A1

    公开(公告)日:2024-10-17

    申请号:US18613877

    申请日:2024-03-22

    IPC分类号: G01F19/00

    CPC分类号: G01F19/002

    摘要: A measuring device for measuring quantities of one or more substances includes a receptacle body for holding the substances and a top edge formed around the receptacle body. The top edge defines a first plane and the receptacle body defines a first volume of the substances when filled to the top edge. A leveling edge is formed along the top edge configured to allow excess substance to be leveled off. An interior measuring ledge protrudes from the receptacle body into the cavity and defines a second plane in conjunction with the leveling edge intersecting the first plane. The interior measuring ledge defines a second volume within the first volume configured for filling with the substances to the interior measuring ledge.

    THERMAL MANAGEMENT FOR PHOTONIC INTEGRATED CIRCUITS

    公开(公告)号:US20170205577A1

    公开(公告)日:2017-07-20

    申请号:US15478715

    申请日:2017-04-04

    IPC分类号: G02B6/122 G02B6/42 G02B6/13

    摘要: Embodiments of the invention describe apparatuses, systems, and methods of thermal management for photonic integrated circuits (PICs). Embodiments include a first device and a second device comprising including waveguides, wherein the first and second devices have different thermal operating conditions. A first region is adjacent to a waveguide of the first device, wherein its optical mode is to be substantially confined by the first region, and wherein the first region has a first thermal conductivity to dissipate heat based on the thermal operating condition of the first device. A second region is adjacent to a waveguide of the second device, wherein its optical mode is to be substantially confined by the second region, and wherein the second region has a second thermal conductivity to dissipate heat based on the thermal operating condition of the second device. In some embodiments, thermal cross talk is reduced without significantly affecting optical performance.