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    Cantilevers with one- or two-dimensional actuation for on-chip active waveguide coupling alignment
    91.
    发明授权
    Cantilevers with one- or two-dimensional actuation for on-chip active waveguide coupling alignment 有权

    公开(公告)号：US10345525B2

    公开(公告)日：2019-07-09

    申请号：US15639018

    申请日：2017-06-30

    Applicant: Acacia Communications, Inc.

    Inventor： Christopher Doerr ,  Li Chen ,  Long Chen

    IPC: G02B6/12 ,  G02B6/35 ,  G02B6/42 ,  G02B6/26

    Abstract: Photonic integrated circuits including controllable cantilevers are described. Such photonic integrated circuits may be used in connection with other optical devices, in which light is transferred between the photonic integrated circuit and one of these optical device. The photonic integrated circuit may comprise an optical waveguide having an end disposed proximate to a facet of the cantilever. The orientation of the cantilever may be actively controlled in one or two dimensions, thus adjusting the orientation of the optical waveguide. Actuation of the cantilever may be performed, for example, thermally and/or electrostatically. Orientation of the cantilever may be performed in such a way to align the optical waveguide with an optical device.

    Segmented traveling wave optical modulators and related methods
    92.
    发明授权
    Segmented traveling wave optical modulators and related methods 有权

    公开(公告)号：US10088733B2

    公开(公告)日：2018-10-02

    申请号：US15230582

    申请日：2016-08-08

    Applicant: Acacia Communications, Inc.

    Inventor： Christopher Doerr ,  Ricardo Aroca ,  Long Chen

    IPC: H04B10/12 ,  G02F1/225 ,  H04B10/516 ,  H04B10/80 ,  G02F1/21

    Abstract: A segmented traveling wave Mach Zehnder optical modulator is described. The segmented traveling wave Mach Zehnder optical modulator may comprise two or more radio frequency (RF) segments, and each RF segment may be configured to support a modulating RF signal. The modulating RF signals may be configured to modulate an optical signal propagating along an optical path of the segmented traveling wave Mach Zehnder optical modulator. The RF modulating signal in the second RF segment may be generated by amplifying the modulating RF signal of the first RF segment, using an RF amplifier. The RF amplifier may be configured to amplify a band-pass spectral portion of the modulating RF signal.

    SILICON MODULATORS AND RELATED APPARATUS AND METHODS
    97.
    发明申请
    SILICON MODULATORS AND RELATED APPARATUS AND METHODS 审中-公开

    公开(公告)号：US20170285437A1

    公开(公告)日：2017-10-05

    申请号：US15472946

    申请日：2017-03-29

    Applicant: Acacia Communications, Inc.

    Inventor： Christopher Doerr ,  Long Chen ,  Ricardo Aroca

    IPC: G02F1/225 ,  G02F1/025

    CPC classification number: G02F1/2257 ,  G02F1/025 ,  G02F1/2255 ,  G02F2001/212

    Abstract: An optical Mach Zehnder modulator is described. The optical Mach Zehnder modulator may comprise a plurality of segments separated by curved waveguides. For example, an optical Mach Zehnder modulator may comprise a first waveguide arm having a first pn-junction formed therein, a second waveguide arm having a second pn-junction formed therein, a third waveguide arm coupled to the first waveguide arm via a first curved waveguide and a fourth waveguide arm coupled to the second waveguide arm via a second curved waveguide. The segments may have the same polarities. Alternatively, the segments may have opposite polarities. The different segments may be driven using different RF signals. The RF signals may be delayed from one another.

    Integrated broadband optical isolator
    100.
    发明授权
    Integrated broadband optical isolator 有权

    公开(公告)号：US09606377B2

    公开(公告)日：2017-03-28

    申请号：US13733111

    申请日：2013-01-02

    Applicant: ACACIA COMMUNICATIONS INC.

    Inventor： Christopher Doerr

    IPC: G02F1/01 ,  G02F1/025 ,  G02B6/42 ,  G02B6/126

    CPC classification number: G02F1/011 ,  G02B6/126 ,  G02B6/4208 ,  G02F1/025 ,  G02F2201/16

    Abstract: An integrated broadband optical isolator that operates over a wide bandwidth, wherein the optical isolator comprises sinusoidally driven phase modulators inside an interferometer. In one exemplary embodiment the optical isolator comprises: a 1×N input optical coupler, where N>2; a N×1 output optical coupler; N optical waveguides optically connecting the 1×N input optical coupler to the N×1 output optical coupler, each one of the N optical waveguides including two phase modulators, wherein each of the phase modulators are driven at a frequency f and wherein the time it takes an optical signal to travel from the center of one phase modulator in a particular waveguide to the center of the other phase modulator in that particular waveguide is substantially equal to 1/4f.

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