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公开(公告)号：US20200183103A1
公开(公告)日：2020-06-11
申请号：US16789878
申请日：2020-02-13
Applicant: Elenion Technologies, LLC
Inventor： Michael J. Hochberg , Ari Jason Novack , Peter D. Magill
Abstract: A photonic interface for an electronic circuit is disclosed. The photonic interface includes a photonic integrated circuit having a modulator and a photodetector, and an optical fiber or fibers for optical communication with another optical circuit. A modulator driver chip may be mounted directly on the photonic integrated circuit. The optical fibers may be placed in v-grooves of a fiber support, which may include at least one lithographically defined alignment feature for optical alignment to the silicon photonic circuit.
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公开(公告)号：US10678005B2
公开(公告)日：2020-06-09
申请号：US16248963
申请日：2019-01-16
Applicant: Elenion Technologies, LLC
Inventor： David Henry Kinghorn , Ari Jason Novack , Holger N. Klein , Nathan A. Nuttall , Kishor V. Desai , Daniel J. Blumenthal , Michael J. Hochberg , Ruizhi Shi
Abstract: Two semiconductor chips are optically aligned to form a hybrid semiconductor device. Both chips have optical waveguides and alignment surface positioned at precisely-defined complementary vertical offsets from optical axes of the corresponding waveguides, so that the waveguides are vertically aligned when one of the chips is placed atop the other with their alignment surface abutting each other. The position of the at least one of the alignment surface in a layer stack of its chip is precisely defined by epitaxy. The chips are bonded at offset bonding pads with the alignment surfaces abutting in the absence of bonding material therebetween.
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公开(公告)号：US10677991B2
公开(公告)日：2020-06-09
申请号：US16189087
申请日：2018-11-13
Applicant: Elenion Technologies, LLC
Inventor： Ari Novack , Ruizhi Shi , Michael J. Hochberg , Thomas Baehr-Jones
IPC: G02B6/12 , G02B6/14 , G02B6/30 , G02B6/136 , G02B6/134 , G02B6/293 , G02B6/122 , G02B6/125 , G02B6/132 , G02B6/28
Abstract: A composite optical waveguide is constructed using an array of waveguide cores, in which one core is tapered to a larger dimension, so that all the cores are used as a composite input port, and the one larger core is used as an output port. In addition, transverse couplers can be fabricated in a similar fashion. The waveguide cores are preferably made of SiN. In some cases, a layer of SiN which is provided as an etch stop is used as at least one of the waveguide cores. The waveguide cores can be spaced away from a semiconductor layer so as to minimize loses.
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公开(公告)号：US10666360B2
公开(公告)日：2020-05-26
申请号：US16585700
申请日：2019-09-27
Applicant: Elenion Technologies, LLC
Inventor： Guido Saathoff , Matthew Akio Streshinsky , Robert Palmer , Torsten Wuth
Abstract: A transceiver having an improved transmitter optical signal to noise ratio, and methods of making and using the same.
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公开(公告)号：US10642077B1
公开(公告)日：2020-05-05
申请号：US16196947
申请日：2018-11-20
Applicant: Elenion Technologies, LLC
Inventor： Lim Eu-Jin Andy , Yangjin Ma , Alexandre Horth , Yang Liu
Abstract: A MOSCAP phase adjuster includes two conductive regions with a thin insulating region therebetween, where charge is accumulated or depleted. In conventional MOSCAP modulators, the conductive and insulating regions are superposed layers, extending horizontally parallel to the substrate, which limits waveguide design and mode confinement, resulting in reduced phase shift performance. An improved MOSCAP phase adjuster and method of fabricating a MOSCAP phase adjuster includes depositing the material for the second conductive region beside and over top of the first conductive region after oxidation, and selectively etching the material to form the second conductive region.
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Patent Agency Ranking
公开(公告)号：US10598876B2
公开(公告)日：2020-03-24
申请号：US15981518
申请日：2018-05-16
Applicant: Elenion Technologies, LLC
Inventor： Michael J. Hochberg , Ari Jason Novack , Peter D. Magill
Abstract: A photonic interface for an electronic circuit is disclosed. The photonic interface includes a photonic integrated circuit having a modulator and a photodetector, and an optical fiber or fibers for optical communication with another optical circuit. A modulator driver chip may be mounted directly on the photonic integrated circuit. The optical fibers may be placed in v-grooves of a fiber support, which may include at least one lithographically defined alignment feature for optical alignment to the silicon photonic circuit.
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公开(公告)号：US20200083855A1
公开(公告)日：2020-03-12
申请号：US16126732
申请日：2018-09-10
Applicant: Elenion Technologies, LLC
Abstract: In optical receivers, extending the transimpedance amplifier's (TIA) dynamic range is a key to increasing the receiver's dynamic range, and therefore increase the channel capacity. Ideally, the TIA requires controllable gain, whereby the receiver can modify the characteristics of the TIA and/or the VGA to process high power incoming signals with a defined maximum distortion, and low power incoming signals with a defined maximum noise. A solution to the problem is to provide TIA's and VGA's with reconfigurable sizes, which are adjustable based on the level of power, e.g. current, generated by the photodetector.
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公开(公告)号：US20200033533A1
公开(公告)日：2020-01-30
申请号：US16043436
申请日：2018-07-24
Applicant: Elenion Technologies, LLC
Inventor： Amit Khanna , Ari Jason Novack , Matthew Akio Streshinsky , Michael J. Hochberg
IPC: G02B6/124 , G02B6/13 , G02B6/12 , G01R31/3185 , G01M11/00 , G01R31/308 , H01L21/66
Abstract: A method for on-wafer testing of optical structures of photonic chips that include edge couplers as input/out ports includes defining, in test a test area of the wafer, an edge coupler pair formed of two edge couplers separated by a test gap, which may have a width that is close to the width of a chip-fiber gap during normal operation of the photonic chips. Test areas may include chains of different numbers of the edge coupler pairs for determining coupling loss per edge coupler.
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公开(公告)号：US20200004055A1
公开(公告)日：2020-01-02
申请号：US16569893
申请日：2019-09-13
Applicant: Elenion Technologies, LLC
Inventor： Ran Ding , Thomas Wetteland Baehr-Jones , Peter D. Magill , Michael J. Hochberg , Alexander Rylyakov
Abstract: An optical modulator apparatus may include a plurality of segment drivers, each segment driver having a unique offset voltage and driving but a portion or a segment of an electro-optical modulator. A modulating electrical signal may be applied to the segment drivers via a plurality of electrical delays. Parameters of the segment drivers may be selected so as to approximate a pre-defined transfer function, which may include a linear or a non-linear transfer function.
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公开(公告)号：US20200003954A1
公开(公告)日：2020-01-02
申请号：US16568762
申请日：2019-09-12
Applicant: Elenion Technologies, LLC
Inventor： Yang Liu , Yangjin Ma , Michael J. Hochberg
Abstract: An integrated polarization splitter and rotator (PSR) employs the TE0 and TE1 modes of propagating light, rather than the TE0 and TM0 modes used in conventional prior art PSR. The integrated PSR exhibits appreciably flatter wavelength response because it does not require a directional coupler to de-multiplex incoming polarizations. The PSR allows tuning of the TM0 loss to reduce polarization dependent loss (PDL). This integrated polarization splitter and rotator is applicable to all integrated platforms including Silicon-on-Insulator (SOI) and III-V semiconductor compound systems. The PSR may be very compact (12×2 μm2), and provides low loss (
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