公开(公告)号：US20210199691A1

公开(公告)日：2021-07-01

申请号：US16730338

申请日：2019-12-30

Applicant: Juniper Networks, Inc.

Inventor： Molly Piels ,  Anand Ramaswamy ,  Brandon Gomez

IPC: G01R1/067 ,  G01R31/3185

Abstract: Described are various configurations for performing efficient optical and electrical testing of an opto-electrical device using a compact opto-electrical probe. The compact opto-electrical probe can include electrical contacts arranged for a given electrical contact layout of the opto-electrical device, and optical interface with a window in a probe core that transmits light from the opto-electrical device. An adjustable optical coupler of the probe can be mechanically positioned to receive light from the device's emitter to perform simultaneous optical and electrical analysis of the device.

公开(公告)号：US20210028323A1

公开(公告)日：2021-01-28

申请号：US17065180

申请日：2020-10-07

Applicant: Juniper Networks, Inc.

Inventor： Erik Johan Norberg ,  Anand Ramaswamy ,  Brian Robert Koch

IPC: H01L31/0304 ,  H01S5/32 ,  H01S5/024 ,  H01L31/109 ,  H01L31/0328 ,  H01L31/0232

Abstract: Embodiments of the invention describe apparatuses, optical systems, and methods related to utilizing optical cladding layers. According to one embodiment, a hybrid optical device includes a silicon semiconductor layer and a III-V semiconductor layer having an overlapping region, wherein a majority of a field of an optical mode in the overlapping region is to be contained in the III-V semiconductor layer. A cladding region between the silicon semiconductor layer and the III-V semiconductor layer has a spatial property to substantially confine the optical mode to the III-V semiconductor layer and enable heat dissipation through the silicon semiconductor layer.

公开(公告)号：US20180219112A1

公开(公告)日：2018-08-02

申请号：US15927277

申请日：2018-03-21

Applicant: Juniper Networks, Inc.

Inventor： Erik Johan Norberg ,  Anand Ramaswamy ,  Brian Robert Koch

IPC: H01L31/0304 ,  H01L31/0232

CPC classification number: H01L31/0304 ,  H01L31/02327 ,  H01L31/0328 ,  H01L31/109 ,  H01S5/021 ,  H01S5/02461 ,  H01S5/026 ,  H01S5/1032 ,  H01S5/3211 ,  H01S5/3213 ,  Y02E10/544

Abstract: Embodiments of the invention describe apparatuses, optical systems, and methods related to utilizing optical cladding layers. According to one embodiment, a hybrid optical device includes a silicon semiconductor layer and a III-V semiconductor layer having an overlapping region, wherein a majority of a field of an optical mode in the overlapping region is to be contained in the III-V semiconductor layer. A cladding region between the silicon semiconductor layer and the III-V semiconductor layer has a spatial property to substantially confine the optical mode to the III-V semiconductor layer and enable heat dissipation through the silicon semiconductor layer.

公开(公告)号：US20220107341A1

公开(公告)日：2022-04-07

申请号：US17552847

申请日：2021-12-16

Applicant: Juniper Networks, Inc.

Inventor： Molly Piels ,  Anand Ramaswamy ,  Brandon Gomez

IPC: G01R1/067 ,  G01R31/3185

Abstract: Described are various configurations for performing efficient optical and electrical testing of an opto-electrical device using a compact opto-electrical probe. The compact opto-electrical probe can include electrical contacts arranged for a given electrical contact layout of the opto-electrical device, and optical interface with a window in a probe core that transmits light from the opto-electrical device. An adjustable optical coupler of the probe can be mechanically positioned to receive light from the device's emitter to perform simultaneous optical and electrical analysis of the device.

公开(公告)号：US20210399799A1

公开(公告)日：2021-12-23

申请号：US17348335

申请日：2021-06-15

Applicant: Juniper Networks, Inc.

Inventor： Robert S. Guzzon ,  Sean P. Woyciehowsky ,  Roberto Marcoccia ,  Anand Ramaswamy ,  John Garcia ,  Sudharsanan Srinivasan

IPC: H04B10/077 ,  H04B10/40

Abstract: An optical transceiver can be calibrated using an internal receiver side eye scan generator, and calibration values (e.g., modulator values) can be stored in memory for recalibration of the optical transceiver. The eye scan generator can receive data from the transmitter portion via an integrated and reconfigurable loopback path. At a later time, different calibration values can be accessed in memory and used to recalibrate the optical transceiver or update the calibrated values using the receive-side eye scan generator operating in loopback mode.

公开(公告)号：US11153009B1

公开(公告)日：2021-10-19

申请号：US16934525

申请日：2020-07-21

Applicant: Juniper Networks, Inc.

Inventor： John Parker ,  John Garcia ,  Brandon Gomez ,  Molly Piels ,  Anand Ramaswamy

IPC: H04B10/079 ,  H04B10/40

Abstract: An optical device such as an optical transceiver can include a cascaded built-in self-test structure that can be configured in testing mode using an active power mode and can sufficiently attenuate light away from a loopback path in an inactive power mode. The optical device can include a wafer top emitter that can be used to tune a light source for testing and calibration of optical components while the built-in self-test structure is in active mode.

公开(公告)号：US10431703B2

公开(公告)日：2019-10-01

申请号：US15927277

申请日：2018-03-21

Applicant: Juniper Networks, Inc.

Inventor： Erik Johan Norberg ,  Anand Ramaswamy ,  Brian Robert Koch

IPC: H01S5/32 ,  H01L31/0304 ,  H01L31/0328 ,  H01S5/024 ,  H01L31/0232 ,  H01L31/109 ,  H01S5/02 ,  H01S5/026 ,  H01S5/10

Abstract: Embodiments of the invention describe apparatuses, optical systems, and methods related to utilizing optical cladding layers. According to one embodiment, a hybrid optical device includes a silicon semiconductor layer and a III-V semiconductor layer having an overlapping region, wherein a majority of a field of an optical mode in the overlapping region is to be contained in the III-V semiconductor layer. A cladding region between the silicon semiconductor layer and the III-V semiconductor layer has a spatial property to substantially confine the optical mode to the III-V semiconductor layer and enable heat dissipation through the silicon semiconductor layer.

公开(公告)号：US20190212505A1

公开(公告)日：2019-07-11

申请号：US16354780

申请日：2019-03-15

Applicant: Juniper Networks, Inc.

Inventor： Brandon W. Buckley ,  Brian Robert Koch ,  John Garcia ,  Jared Bauters ,  Sudharsanan Srinivasan ,  Anand Ramaswamy

IPC: G02B6/42 ,  G02B6/12 ,  G02B6/43 ,  G02B6/30 ,  H04B10/25

Abstract: An example photonic integrated circuit includes a transmitter circuit with a optical communication path to an optical coupler configured to couple with an optical fiber. The optical communication path has a propagation direction away from the transmitter circuit and towards the optical coupler. A counter-propagating tap diverts light sent by a light source backward against the propagation direction of the optical communication path. A photodiode receives the diverted light and measures its power level. The photodiode generates a feedback signal for the optical coupler and provides the feedback signal to the optical coupler. The optical coupler receives the feedback signal and adjusts a coupling alignment of the optical communication path to the optical fiber based on the feedback signal, which indicates the measured power level of the diverted counter-propagating light.