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公开(公告)号：US10742000B2
公开(公告)日：2020-08-11
申请号：US16424262
申请日：2019-05-28
Applicant: FINISAR CORPORATION
Inventor： Deepa Gazula , Nicolae Chitica , Marek Chacinski , Gary Landry , Jim Tatum
Abstract: A VCSEL can include: an elliptical oxide aperture in an oxidized region that is located between an active region and an emission surface, the elliptical aperture having a short radius and a long radius with a radius ratio (short radius)/(long radius) being between 0.6 and 0.8, the VCSEL having a relative intensity noise (RIN) of less than −140 dB/Hz. The VCSEL can include an elliptical emission aperture having the same dimensions of the elliptical oxide aperture. The VCSEL can include an elliptical contact having an elliptical contact aperture therein, the elliptical contact being around the elliptical emission aperture. The elliptical contact can be C-shaped. The VCSEL can include one or more trenches lateral of the oxidized region, the one or more trenches forming an elliptical shape, wherein the oxidized region has an elliptical shape. The one or more trenches can be trapezoidal shaped trenches.
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公开(公告)号：US10180588B1
公开(公告)日：2019-01-15
申请号：US16040121
申请日：2018-07-19
Applicant: Finisar Corporation
Inventor： Robert Lewen , Andrei Kaikkonen , Christopher Daunt , Marek Chacinski
Abstract: An electro-optical modulator includes a substrate comprising a first Mach-Zehnder modulator comprising a first waveguide and a second waveguide and a second Mach-Zehnder modulator comprising a first waveguide and a second waveguide. A first positive signal electrode is positioned on the substrate over the first waveguide of the first Mach-Zehnder modulator and a first negative signal electrode is positioned on the substrate over the second waveguide of the first Mach-Zehnder modulator. The first positive signal electrode and the first negative signal electrode are connected to a first differential signal input. A second positive signal electrode is positioned on the substrate over the first waveguide of the second Mach-Zehnder modulator and a second negative signal electrode positioned on the substrate over the second waveguide of the second Mach-Zehnder modulator. The second positive signal electrode and the second negative signal electrode are connected to a second differential signal input. A first ground electrode is positioned on the substrate between the first and second Mach-Zehnder modulators connected to ground potential. A second ground electrode is connected to ground potential and positioned on the substrate adjacent to the first Mach-Zehnder modulator such that the first positive signal electrode and the first negative signal electrode are between the second ground electrode and the first ground electrode. A third ground electrode is connected to ground potential and positioned on the substrate adjacent to the second Mach-Zehnder modulator such that the second positive signal electrode and the second negative signal electrode are between the third ground electrode and the first ground electrode. A plurality of first electrical connectors connect the first ground electrode to the second ground electrode and a plurality of second electrical connectors connect the first ground electrode to the third ground electrode. A spacing between at least two of the plurality of first electrical connectors is chosen to achieve a desired cross talk between an optical signal generated by the first Mach-Zehnder modulator and an optical signal generated by the second Mach-Zehnder modulator.
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Patent Agency Ranking
公开(公告)号：US20190341743A1
公开(公告)日：2019-11-07
申请号：US16424262
申请日：2019-05-28
Applicant: FINISAR CORPORATION
Inventor： Deepa Gazula , Nicolae Chitica , Marek Chacinski , Gary Landry , Jim Tatum
Abstract: A VCSEL can include: an elliptical oxide aperture in an oxidized region that is located between an active region and an emission surface, the elliptical aperture having a short radius and a long radius with a radius ratio (short radius)/(long radius) being between 0.6 and 0.8, the VCSEL having a relative intensity noise (RIN) of less than −140 dB/Hz. The VCSEL can include an elliptical emission aperture having the same dimensions of the elliptical oxide aperture. The VCSEL can include an elliptical contact having an elliptical contact aperture therein, the elliptical contact being around the elliptical emission aperture. The elliptical contact can be C-shaped. The VCSEL can include one or more trenches lateral of the oxidized region, the one or more trenches forming an elliptical shape, wherein the oxidized region has an elliptical shape. The one or more trenches can be trapezoidal shaped trenches.
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公开(公告)号：US20190089127A1
公开(公告)日：2019-03-21
申请号：US15707540
申请日：2017-09-18
Applicant: Finisar Corporation
Inventor： Deepa Gazula , Nicolae Chitica , Marek Chacinski , Gary Landry , Jim Tatum
Abstract: A VCSEL can include: an elliptical oxide aperture in an oxidized region that is located between an active region and an emission surface, the elliptical aperture having a short radius and a long radius with a radius ratio (short radius)/(long radius) being between 0.6 and 0.8, the VCSEL having a relative intensity noise (RIN) of less than −140 dB/Hz. The VCSEL can include an elliptical emission aperture having the same dimensions of the elliptical oxide aperture. The VCSEL can include an elliptical contact having an elliptical contact aperture therein, the elliptical contact being around the elliptical emission aperture. The elliptical contact can be C-shaped. The VCSEL can include one or more trenches lateral of the oxidized region, the one or more trenches forming an elliptical shape, wherein the oxidized region has an elliptical shape. The one or more trenches can be trapezoidal shaped trenches.
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公开(公告)号：US20210098972A1
公开(公告)日：2021-04-01
申请号：US16947664
申请日：2020-08-11
Applicant: FINISAR CORPORATION
Inventor： Deepa Gazula , Nicolae Chitica , Marek Chacinski , Gary Landry , Jim Tatum
Abstract: A VCSEL can include: an elliptical oxide aperture in an oxidized region that is located between an active region and an emission surface, the elliptical aperture having a short radius and a long radius with a radius ratio (short radius)/(long radius) being between 0.6 and 0.8, the VCSEL having a relative intensity noise (RIN) of less than −140 dB/Hz. The VCSEL can include an elliptical emission aperture having the same dimensions of the elliptical oxide aperture. The VCSEL can include an elliptical contact having an elliptical contact aperture therein, the elliptical contact being around the elliptical emission aperture. The elliptical contact can be C-shaped. The VCSEL can include one or more trenches lateral of the oxidized region, the one or more trenches forming an elliptical shape, wherein the oxidized region has an elliptical shape. The one or more trenches can be trapezoidal shaped trenches.
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公开(公告)号：US10659166B2
公开(公告)日：2020-05-19
申请号：US16226040
申请日：2018-12-19
Applicant: Finisar Corporation
Inventor： Nicolae Chitica , Jürgen Hauenschild , Theron Jones , David Nidelius , Lennart Lundqvist , Elisabeth Källén , Odd Steijer , Marek Chacinski , Åsa Johansson , Andrei Kaikkonen
IPC: H04B10/40 , H01S5/024 , H01S5/42 , H04B10/50 , H01S5/068 , H01S5/026 , H01S5/022 , G02B6/42 , H01S5/062
Abstract: An integrated optical transceiver, comprisinga laser component, comprising an array of VCSEL diodes formed on a laser diode substrate;a laser driving component, comprising laser diode driving circuitry formed on a laser driving circuitry substrate;a photodiode component, comprising an array of photodiodes formed on a photodiode substrate; anda photodiode driving component, comprising photodiode driving circuitry formed on a photodiode driving circuitry substrate;a first heat sink comprising a connected piece of material to transport excess heat away from the integrated optical transceiver and connected to both the laser and photodiode driving components; andan electrically insulating material separating the photodiode substrate from the first heat sink and being air or dielectric material with a relative dielectric constant ε
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公开(公告)号：US10305254B2
公开(公告)日：2019-05-28
申请号：US15707540
申请日：2017-09-18
Applicant: Finisar Corporation
Inventor： Deepa Gazula , Nicolae Chitica , Marek Chacinski , Gary Landry , Jim Tatum
Abstract: A VCSEL can include: an elliptical oxide aperture in an oxidized region that is located between an active region and an emission surface, the elliptical aperture having a short radius and a long radius with a radius ratio (short radius)/(long radius) being between 0.6 and 0.8, the VCSEL having a relative intensity noise (RIN) of less than −140 dB/Hz. The VCSEL can include an elliptical emission aperture having the same dimensions of the elliptical oxide aperture. The VCSEL can include an elliptical contact having an elliptical contact aperture therein, the elliptical contact being around the elliptical emission aperture. The elliptical contact can be C-shaped. The VCSEL can include one or more trenches lateral of the oxidized region, the one or more trenches forming an elliptical shape, wherein the oxidized region has an elliptical shape. The one or more trenches can be trapezoidal shaped trenches.
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