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公开(公告)号：US11968035B1
公开(公告)日：2024-04-23
申请号：US17393102
申请日：2021-08-03
发明人： Long Chen
CPC分类号： H04J14/06 , G02B27/283 , G02B27/286 , G02F1/212 , H04B10/50 , H04B10/60 , H04J14/02
摘要： In part, in one aspect, the disclosure relates to a system including an integrated optical multiplexer. The integrated optical multiplexer may include a plurality of optical inputs configured and constructed to receive input optical signals; two or more stages of multiplexing in a cascading configuration, wherein the two or more stages of multiplexing are divided into wavelength stages and a last stage, wherein each of the wavelength stages combine subsets of input optical signals by wavelength, the last stage combines input optical signals by polarization using a polarization beam combiner, and at a combined output of the integrated optical multiplexer a first subset of the input optical signals have a different polarization than a second subset of the input optical signals.
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公开(公告)号：US11353666B2
公开(公告)日：2022-06-07
申请号：US16441775
申请日：2019-06-14
发明人： Long Chen , Christopher Doerr , Li Chen
摘要： An integrated wavelength division multiplexer is described. The integrated wavelength division multiplexer may include a first waveguide core defining a first propagation axis and configured to guide light of a first wavelength and light of a second wavelength, and a second waveguide core defining a second propagation axis and configured to guide the light of the second wavelength. A first portion of the second propagation axis for which the first waveguide core and second waveguide core may be overlapping is oriented at a non-zero angle relative to the first propagation axis. The first waveguide core and second waveguide core may be configured relative to each other to adiabatically couple the light of the second wavelength between the first and second waveguide cores.
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公开(公告)号：US11294061B1
公开(公告)日：2022-04-05
申请号：US16104872
申请日：2018-08-17
发明人： Christopher Doerr , Long Chen
摘要： An apparatus for scanning a scene comprising a light transmitter including a one-dimensional phased array; wherein the light transmitter is fed by a frequency swept scanning laser; and a light receiver including a one-dimensional phased array; the one-dimensional phased array of the light receiver disposed orthogonally to the one-dimensional phased array of the transmitter; wherein light received by the light receiver is enabled to be interfered with light from the frequency swept scanning laser.
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14.发明授权公开(公告)号：US10964605B1
公开(公告)日：2021-03-30
申请号：US16741089
申请日：2020-01-13
发明人： Diedrik Vermeulen , Long Chen , Christopher Doerr
摘要： Disclosed herein are methods, structures, and devices for wafer scale testing of photonic integrated circuits.
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公开(公告)号：US10714894B1
公开(公告)日：2020-07-14
申请号：US15938398
申请日：2018-03-28
发明人： Christopher Doerr , Li Chen , Long Chen
摘要： In a first embodiment, an external cavity tunable laser, comprising a silicon photonics circuit comprising one or more resonators having one or more p-i-n junctions; wherein a voltage is applied to one or more of the p-i-n junctions. In a second embodiment, a method of operating an external cavity tunable laser, comprising sweeping out free-carriers from a resonator of the tunable laser by applying a voltage to a p-i-n junction of a waveguide of the resonator.
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公开(公告)号：US10268055B1
公开(公告)日：2019-04-23
申请号：US16215717
申请日：2018-12-11
发明人： Christopher Doerr , Long Chen , John Heanue , Momchil T. Mihnev
IPC分类号： G02F1/01
摘要： A method for making an apparatus, a system, and apparatus, the apparatus and system each comprising a substrate with a top side, wherein the substrate has a set of cavities in the top side of the substrate, wherein the substrate has a set of conductive elements on the top side of the substrate arranged to electrically couple with a set of conductive elements of a photonic integrated circuit (PIC), wherein each cavity of the set of cavities when coupled to the PIC creates a surface tension when exposed to an underfill to cause the underfill to flow around each cavity.
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公开(公告)号：US10222566B1
公开(公告)日：2019-03-05
申请号：US14991242
申请日：2016-01-08
发明人： Christopher Doerr , Long Chen
摘要： A photonic integrated circuit (PIC) coupled to a substrate may be aligned with receptacles having guide pin structures configured to receive guide pins attached to a fiber assembly. The receptacles may be affixed to a surface of the substrate and/or the PIC to permit the fiber assembly to be removed during a solder reflow process while maintaining the alignment of the fiber assembly to the PIC when reconnected following the solder reflow process.
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公开(公告)号：US10133142B2
公开(公告)日：2018-11-20
申请号：US15472946
申请日：2017-03-29
发明人： Christopher Doerr , Long Chen , Ricardo Aroca
摘要： 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.
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公开(公告)号：US09989787B2
公开(公告)日：2018-06-05
申请号：US15455917
申请日：2017-03-10
发明人： Long Chen , Christopher Doerr
CPC分类号： G02F1/025 , G02F2001/0151
摘要： Disclosed herein are methods, structures, and devices for a silicon carrier-depletion based modulator with enhanced doping in at least part of slab regions between waveguide core and contact areas. Compared to prior designs, this modulator exhibits lower optical absorption loss and better modulation bandwidth without sacrificing the modulation efficiency when operating at comparable bandwidth settings.
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公开(公告)号：US09977269B2
公开(公告)日：2018-05-22
申请号：US15584509
申请日：2017-05-02
发明人： Long Chen
CPC分类号： G02F1/025 , G02B6/00 , G02B6/134 , G02F2001/0156
摘要： Disclosed are designs and methods of fabrication of silicon carrier-depletion based electro-optical modulators having doping configurations that produce modulators exhibiting desirable modulation efficiency, optical absorption loss and bandwidth characteristics. The disclosed method of fabrication of a modulator having such doping configurations utilizes counter doping to create narrow regions of relatively high doping levels near a waveguide center.
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