Abstract: A multi-clad optical fiber design is described in order to provide low optical loss, a HIGH NUMERICAL APERTURE (NA), and HIGH OPTICAL GAIN FOR THE FUNDAMENTAL PROPAGATING MODE, the linearly polarized (LP) 01 mode in the UV and visible portion of the optical spectrum. The optical fiber design may contain dopants in order to simultaneously increase the optical gain in the core region while avoiding additional losses during the fiber fabrication process. The optical fiber design may incorporate rare-earth DOPANTS FOR EFFICIENT LASING. Additionally, the modal characteristics of the propagating modes in the optical core promote highly efficient nonlinear mixing, providing for a high beam quality (M2<1.5) output of the emitted light.
Type: Grant
Filed: April 20, 2018
Date of Patent: April 28, 2020
Assignee: Nuburu, Inc.
Inventors: Mark S. Zediker, Robert A. Stegeman, James P. Tucker, Jean-Philippe Feve
Patent number: 10554298
[...] Abstract: The present disclosure relates to a method for testing a fiber optic network including a fiber distribution hub. The method includes providing a test splitter within the fiber distribution hub to provide optical connectivity between an F1 fiber and at least a portion of an F2 fiber network. The method also includes testing sending a test signal from the F1 fiber through the test splitter to the F2 fiber network, and replacing the test splitter after testing has been completed.
Type: Grant
Filed: February 4, 2019
Date of Patent: February 4, 2020
Assignee: CommScope Technologies LLC
Inventor: Trevor D. Smith
Patent number: 10528195
Abstract: DISCLOSED IS A TOUCH DEVICE INCLUDING A DISPLAY TO DISPLAY A SCREEN IMAGE, AND A RADAR SYSTEM UNDER THE DISPLAY TO DETECT A TOUCH.
Type: Grant
Filed: April 29, 2015
Date of Patent: January 7, 2020
Assignee: LG Innotek Co., Ltd.
Inventors: Tae Jin Lee, Sang Young Lee
Patent number: 10511401
Abstract: An apparatus includes a first reconfigurable optical add/drop multiplexer (ROADM) to receive a first optical signal and a second ROADM to receive a second optical signal. The apparatus also includes a reconfigurable optical switch that includes a first switch, switchable between a first state and a second state, to transmit the first optical signal at the first state and block the first optical signal at the second state. The reconfigurable optical switch also includes a second switch, switchable between the first state and the second state, to transmit the second optical signal at the first state and block the second optical signal at the second state. The reconfigurable optical switch also includes an output port to transmit an output signal that is a sum of POSSIBLE OPTICAL SIGNALS TRANSMITTED THROUGH THE FIRST SWITCH AND THE SECOND SWITCH.
Type: Grant
Filed: September 30, 2017
Date of Patent: December 17, 2019
Assignee: Juniper Networks, Inc.
Inventor: Kevan Peter Jones
Patent number: 10447002
Abstract: A monomode optical fiber, and a PROCESS FOR MANUFACTURING SUCH A FIBER, that comprises a monomode core and at least one cladding encircling the core. The monomode core comprises at least two zones, a first zone with at least one first REFRACTIVE INDEX AND A SECOND ZONE with at least one second refractive index different from the first refractive index. The difference between the first refractive index and the second refractive index is of the same order of magnitude as the variation in the refractive index of the second zone between the inactive state and the active state of the fiber.
Type: Grant
Filed: April 22, 2016
Date of Patent: October 15, 2019
Assignees: Universite de Limoges, Centre National de la Recherche Scientifique
Inventors: Philippe Roy, Romain Dauliat, Raphael Emmanuel Jamier
Patent number: 10340655
[...]
Ref; https://patents.justia.com/patents-by-us-classification/359/341.1
