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公开(公告)号：US10305592B2
公开(公告)日：2019-05-28
申请号：US16030391
申请日：2018-07-09
Applicant: Luxtera, Inc.
Inventor： Peter DeDobbelaere , Christopher Bergey , Attila Mekis
Abstract: Methods and systems for a bi-directional receiver for standard single-mode fiber based on grating couplers may include, in an integrated circuit, a multi-wavelength grating coupler, and first and second optical sources coupled to the integrated circuit: coupling first and second source optical signals at first and second wavelengths into the photonically-enabled integrated circuit using the first and second optical sources, where the second wavelength is different from the first wavelength, receiving a first optical data signal at the first wavelength from an optical fiber coupled to the multi-wavelength grating coupler, and receiving a second optical data signal at the second wavelength from the optical fiber. Third and fourth optical data signals at the first and second wavelengths may be communicated out of the optoelectronic transceiver via the multi-wavelength grating coupler.
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公开(公告)号：US20190121025A1
公开(公告)日：2019-04-25
申请号：US16227890
申请日：2018-12-20
Applicant: Luxtera, Inc.
Inventor： Lieven Verslegers , Attila Mekis
CPC classification number: G02B6/26 , G02B5/1861 , G02B6/124 , G02B6/30 , G02B6/34 , G02B2006/12107
Abstract: Methods and systems for grating couplers incorporating perturbed waveguides are disclosed and may include in a semiconductor photonics die, communicating optical signals into and/or out of the die utilizing a grating coupler on the die, where the grating coupler comprises perturbed waveguides. The perturbed waveguides may include rows of continuous waveguides with scatterers extending throughout a length of the perturbed waveguides a variable width along their length. The grating coupler may comprise a single polarization grating coupler comprising perturbed waveguides and a non-perturbed grating. The grating coupler may comprise a polarization splitting grating coupler (PSGC) that includes two sets of perturbed waveguides at a non-zero angle, or a plurality of non-linear rows of discrete shapes. The PSGC may comprise discrete scatterers at an intersection of the sets of perturbed waveguides. The grating coupler may comprise individual scatterers between the perturbed waveguides.
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53.发明申请公开(公告)号：US20180323874A1
公开(公告)日：2018-11-08
申请号：US16030391
申请日：2018-07-09
Applicant: Luxtera, Inc.
Inventor： Peter DeDobbelaere , Christopher Bergey , Attila Mekis
CPC classification number: H04B10/2503 , G02B6/12007 , G02B6/124 , G02B6/305 , G02B6/34 , H04B10/40 , H04B10/506 , H04J14/0202
Abstract: Methods and systems for a bi-directional receiver for standard single-mode fiber based on grating couplers may include, in an integrated circuit, a multi-wavelength grating coupler, and first and second optical sources coupled to the integrated circuit: coupling first and second source optical signals at first and second wavelengths into the photonically-enabled integrated circuit using the first and second optical sources, where the second wavelength is different from the first wavelength, receiving a first optical data signal at the first wavelength from an optical fiber coupled to the multi-wavelength grating coupler, and receiving a second optical data signal at the second wavelength from the optical fiber. Third and fourth optical data signals at the first and second wavelengths may be communicated out of the optoelectronic transceiver via the multi-wavelength grating coupler.
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54.发明授权公开(公告)号：US10120126B2
公开(公告)日：2018-11-06
申请号：US15830467
申请日：2017-12-04
Applicant: Luxtera, Inc.
Inventor： Brian Welch , Attila Mekis , Steffan Gloeckner
IPC: H04J14/00 , H04J14/02 , G02B6/12 , H04B10/40 , H04B10/80 , G02B6/124 , G02B6/125 , G02B6/293 , G02B6/42
Abstract: Methods and systems for partial integration of wavelength division multiplexing and bi-directional solutions are disclosed and may include, an optical transceiver on a silicon photonics integrated circuit coupled to a planar lightwave circuit (PLC). The silicon photonics integrated circuit may include a first modulator and first light source that operates at a first wavelength and a second modulator and second light source that operates at a second wavelength. The transceiver and PLC are operable to modulate a first continuous wave (CW) optical signal from the first light source utilizing the first modulator and modulate a second CW optical signal from the second light source utilizing the second modulator. The modulated signals may be communicated from the modulators to the PLC utilizing a first pair of grating couplers in the IC and combined in the PLC.
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公开(公告)号：US20180306986A1
公开(公告)日：2018-10-25
申请号：US15957000
申请日：2018-04-19
Applicant: Luxtera, Inc.
Inventor： Roman Bruck , Attila Mekis
CPC classification number: G02B6/4206 , G02B6/12004 , G02B6/122 , G02B6/124 , G02B6/125 , G02B6/136 , G02B6/30 , G02B6/43 , G02B2006/12107 , G02B2006/12147 , H04B10/2504 , H04B10/66 , H04B10/70
Abstract: Methods and systems for two-dimensional mode-matching grating couplers may include in a photonic chip comprising a grating coupler at a surface of the photonic chip, the grating coupler having increased scattering strength in a direction of a light wave traveling through the grating coupler: receiving an optical signal from a first direction within the photonic chip; and scattering the optical signal out of the surface of the photonic chip. A second optical signal may be received in the grating coupler from a second direction within the photonic chip. The second optical signal may be scattered out of the surface of the photonic chip. The increasing scattering strength may be configured by increased width scatterers along a direction perpendicular to the direction of light travel. The increased scattering strength may be configured by a transition of shapes of scatterers in the grating coupler.
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Patent Agency Ranking
公开(公告)号：US20180306977A1
公开(公告)日：2018-10-25
申请号：US15945370
申请日：2018-04-04
Applicant: Luxtera, Inc.
Inventor： Roman Bruck , Attila Mekis
IPC: G02B6/293 , H04J14/00 , H04B10/2581
Abstract: Methods and systems for mode converters for grating couplers may include a photonic chip comprising a waveguide, a grating coupler, and a mode converter, with the waveguide being coupled to the grating coupler via the mode converter. The mode converter may include waveguide material and tapers defined by tapered regions, where the tapered regions do not have waveguide material. The photonic chip may receive an optical signal in the mode converter from the waveguide, where the received optical signal has a light profile that may be spatially deflected in the mode converter to configure a desired profile in the grating coupler. A long axis of the tapers may be parallel to a direction of travel of the optical signal. The long axis of the tapers may point towards the input waveguide of the grating couplers, which may be linear.
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公开(公告)号：US10027420B2
公开(公告)日：2018-07-17
申请号：US14752696
申请日：2015-06-26
Applicant: Luxtera, Inc.
Inventor： Subal Sahni , Kam-Yan Hon , Attila Mekis , Gianlorenzo Masini , Lieven Verslegers
IPC: G02F1/225 , H04B10/00 , H04B10/548 , G02F1/025
Abstract: Methods and systems for a silicon-based optical phase modulator with high modal overlap are disclosed and may include, in an optical modulator having a rib waveguide in which a cross-shaped depletion region separates four alternately doped sections: receiving an optical signal at one end of the optical modulator, modulating the received optical signal by applying a modulating voltage, and communicating a modulated optical signal out of an opposite end of the modulator. The modulator may be in a silicon photonically-enabled integrated circuit which may be in a complementary-metal oxide semiconductor (CMOS) die. An optical mode may be centered on the cross-shaped depletion region. The four alternately doped sections may include: a shallow depth p-region, a shallow depth n-region, a deep p-region, and a deep n-region. The shallow depth p-region may be electrically coupled to the deep p-region periodically along the length of the modulator.
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公开(公告)号：US10025120B2
公开(公告)日：2018-07-17
申请号：US14105527
申请日：2013-12-13
Applicant: Luxtera Inc.
Inventor： Ali Ayazi , Gianlorenzo Masini , Subal Sahni , Attila Mekis , Thierry Pinguet
Abstract: Methods and systems for a low-parasitic silicon high-speed phase modulator are disclosed and may include fabricating an optical phase modulator that comprises a PN junction waveguide formed in a silicon layer, wherein the silicon layer may be on an oxide layer and the oxide layer may be on a silicon substrate. The PN junction waveguide may have p-doped and n-doped regions on opposite sides along a length of the PN junction waveguide, and portions of the p-doped and n-doped regions may be removed. Contacts may be formed on remaining portions of the p-doped and n-doped regions. Portions of the p-doped and n-doped regions may be removed symmetrically about the PN junction waveguide. Portions of the p-doped and n-doped regions may be removed in a staggered fashion along the length of the PN junction waveguide. Etch transition features may be removed along the p-doped and n-doped regions.
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59.发明申请公开(公告)号：US20180191442A1
公开(公告)日：2018-07-05
申请号：US15907613
申请日：2018-02-28
Applicant: Luxtera, Inc.
Inventor： Attila Mekis , Peter De Dobbelaere , Lieven Verslegers , Peng Sun , Yannick De Koninck
CPC classification number: H04B10/40 , H04B10/5053 , H04B10/506 , H04J14/02
Abstract: Methods and systems for silicon photonics wavelength division multiplexing transceivers are disclosed and may include, in a transceiver integrated in a silicon photonics chip: generating a first modulated output optical signal at a first wavelength utilizing a first electrical signal, generating a second modulated output optical signal at a second wavelength utilizing a second electrical signal, communicating the first and second modulated output optical signals into an optical fiber coupled to the chip utilizing a multiplexing grating coupler in the chip. A received input optical signal may be split into a modulated input optical signal at the first wavelength and a modulated input optical signal at the second wavelength utilizing a demultiplexing grating coupler in the chip. The first and second modulated input optical signals may be converted to first and second electrical input signals utilizing first and second photodetectors in the chip.
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公开(公告)号：US20180188459A1
公开(公告)日：2018-07-05
申请号：US15907543
申请日：2018-02-28
Applicant: Luxtera, Inc.
Inventor： Attila Mekis , Peter De Dobbelaere , Gianlorenzo Masini , Yannick De Koninck , Thierry Pinguet
CPC classification number: G02B6/428 , G02B6/124 , G02B6/30 , G02B6/34 , G02B6/3897 , G02B6/4206 , G02B6/4208 , G02B6/4214 , G02B6/4239 , G02B6/424 , G02B6/4245 , G02B6/4255 , H04B10/501 , H04B10/801
Abstract: Methods and systems for a chip-on-wafer-on-substrate assembly are disclosed and may include in an optical communication system comprising an electronics die and a substrate. The electronics die is bonded to a first surface of a photonic interposer and the substrate is coupled to a second surface of the photonic interposer opposite to the first surface. An optical fiber and a light source assembly are coupled to the second surface of the interposer in one or more cavities formed in the substrate. A continuous wave (CW) optical signal may be received in the photonic interposer from the light source assembly, and a modulated optical signal may be communicated between the optical fiber and photonic interposer. The received CW optical signal may be coupled to an optical waveguide in the photonic interposer using a grating coupler.
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