公开(公告)号：US20210072565A1

公开(公告)日：2021-03-11

申请号：US17004677

申请日：2020-08-27

申请人： II-VI DELAWARE, INC.

发明人： Andrei Kaikkonen ,  Simon Chen ,  Robert Lewén ,  Osamu Mizuhara

IPC分类号： G02F1/01 ,  G02F1/21 ,  H04B10/516

摘要： An optical communication device may include a driver component, arranged to achieve a driving voltage, and a modulator component, including a laser or arranged to receive light from a laser. The modulator component may be arranged to achieve a modulated light signal modulated based on the driving voltage. The device may include a transmission line arranged to transfer the driving voltage between the driver component and the modulator component. The transmission line may not impedance matched to the driver component, the transmission line may have an impedance which is at least 20% lower than an output impedance of the driver component, and the transmission line may be impedance matched with respect to signal reflections to the modulator component.

公开(公告)号：US10911154B2

公开(公告)日：2021-02-02

申请号：US16373847

申请日：2019-04-03

申请人： II-VI Delaware, Inc.

发明人： Faraz Monifi ,  Bryan Park

IPC分类号： H04B10/69 ,  H04B10/67 ,  G02F1/313

摘要： A directional coupler may include a first waveguide and a second waveguide. The first waveguide may include an optical input port to receive an optical signal and a first output port. The second waveguide may include a terminated port and a second output port. The first and second optical waveguides may be configured to split the optical signal such that a first portion of the optical signal is directed to the first output port and a second portion of the optical signal is directed to the second output port. The first portion of the optical signal may include first substantially equal portions of a transverse magnetic (TM) polarization mode and a transverse electric (TE) polarization mode of the optical signal. The second portion of the optical signal may include second substantially equal portions of the TM polarization mode and the TE polarization mode of the optical signal.

公开(公告)号：US10856402B2

公开(公告)日：2020-12-01

申请号：US16018729

申请日：2018-06-26

申请人： II-VI Delaware, Inc.

发明人： Alan Hedges ,  Kyle Branigan

IPC分类号： H05H7/20 ,  H01P7/06 ,  B23K26/282 ,  H01P11/00 ,  B23K103/00 ,  B23K101/36

摘要： A superconducting radio frequency cell includes a body defining a hollow cavity having a first iris and second iris at opposite ends of the body, an axis that extends between the first and second irises, and an equator around the axis between the first and second irises. The body includes at least a first weld seam around the axis at a location on the body spaced from the equator. Each weld seam extends through the body and has opposite sides terminating proximate an interior and an exterior of the body, and each weld seam includes a first, conduction weld formed on one side of the weld seam and a second weld formed on the opposite side of the weld seam. The second weld can be a conduction weld, a keyhole weld, or a transition weld.

公开(公告)号：US10808296B2

公开(公告)日：2020-10-20

申请号：US16186897

申请日：2018-11-12

申请人： II-VI Delaware, Inc.

发明人： Wen-Qing Xu ,  Marie Ysabel R. Abella ,  Gomer M. Abrenica ,  Louie I. Bedes ,  Vincent D. Mattera ,  Shailesh Patkar

IPC分类号： C22B59/00 ,  C22B3/42

摘要： A method for extracting rare earth metals from an acidic slurry or an acidic solution. The method includes providing an acidic slurry or acidic solution; adding a composite comprising an extractant and a polymer resin; mixing the composite with the acidic slurry or acidic solution to form a mixture slurry or solution; and separating the mixture slurry or solution into a rare-earth-metal-loaded composite and a raffinate slurry or solution. The acidic slurry or acidic solution comprises at least one rare earth metal and at least one early transition metal and/or at least one actinide metal.

公开(公告)号：US20200318884A1

公开(公告)日：2020-10-08

申请号：US16377745

申请日：2019-04-08

申请人： II-VI Delaware, Inc.

发明人： Leonard Recine ,  Jason Mefford ,  James Bierschenk ,  Joshua Moczygemba

IPC分类号： F25C1/10 ,  F25B21/04 ,  F25C1/18

摘要： The disclosure includes an apparatus and a method for forming a frozen substance using directional freezing. The apparatus includes a mold and a directional freezing assembly. The mold is structured with an interior chamber structured to contain a liquid substance. The directional freezing assembly includes a directional freezing probe and a cold plate. The directional freezing probe extends into the interior chamber of the mold and initiates directional freezing of the liquid substance surrounding the directional freezing probe. The cold plate is connected to the directional freezing probe outside of the mold and dissipates heat drawn from the directional freezing probe to a surrounding environment.

公开(公告)号：US10761263B1

公开(公告)日：2020-09-01

申请号：US16366384

申请日：2019-03-27

申请人： II-VI Delaware, Inc.

发明人： Giovanni Barbarossa ,  Christopher S. Koeppen ,  Weiqi Li

IPC分类号： G02B6/12 ,  G02B6/293 ,  H04B10/50 ,  H04B10/40

摘要： A densely-spaced wavelength division multiplexing (DWDM) transceiver utilizes a comb laser source to provide a multi-channel system capable of supporting at least twenty separate channels. The optical transmitter portion of the transceiver utilizes a double-pass (e.g., reflective) modulator configuration. The double-pass arrangement allows for a single grating (or other suitable dispersive element) to be used as a demultiplexer in combination with the comb laser source to separate the input optical beams into individual wavelength components, as well as a multiplexer for combining the plurality of separate modulated optical signals into a single, multi-channel DWDM optical output signal. The optical receiver portion of the transceiver includes a grating element to direct the multi-channel received optical signal into separate, wavelength-based channels, with the signal propagating along each channel directed into a separate photodiode.

公开(公告)号：US10727643B1

公开(公告)日：2020-07-28

申请号：US16268315

申请日：2019-02-05

申请人： II-VI Delaware, Inc.

发明人： Martin R. Williams ,  Timothy K. Zahnley ,  Thomas W. McNamara ,  Aravanan Gurusami ,  Scott Dahl ,  Siegfried Fleischer

IPC分类号： H01S3/23 ,  G01S17/02 ,  H03K7/08 ,  H01S3/067

摘要： A fiber-based master optical power amplifier (MOPA) is configured to utilize a pump source that operates in pulse mode with the arrival time of the pump pulses coordinated with the arrival time of the input pulses. The width of the pump pulses is also controlled, thus providing a mechanism for controlling both the amount of pump energy injected into the fiber amplifier, as well as the overlap in time between the pump pulse and the seed pulse. As the pulse repetition interval (PRI) of the input seed pulse changes, the timing of the pump pulses and their width are also changed so that a “constant gain” environment is created within the amplifying medium, providing an essentially constant energy output pulse, regardless of differences in ASE generated during different PRIs.

公开(公告)号：US10714900B2

公开(公告)日：2020-07-14

申请号：US15996614

申请日：2018-06-04

申请人： II-VI Delaware, Inc.

发明人： Abram Jakubowicz ,  Martin Sueess

IPC分类号： H01S5/028 ,  H01S5/22 ,  H01S5/10 ,  H01S5/40

摘要： Edge-emitting laser diodes having mirror facets include passivation coatings that are conditioned using an ex-situ process to condition the insulating material used to form the passivation layer. An external energy source (laser, flash lamp, e-beam) is utilized to irradiate the material at a given dosage and for a period of time sufficient to condition the complete thickness of passivation layer. This ex-situ laser treatment is applied to the layers covering both facets of the laser diode (which may comprise both the passivation layers and the coating layers) to stabilize the entire facet overlay. Importantly, the ex-situ process can be performed while the devices are still in bar form.

公开(公告)号：US20200162184A1

公开(公告)日：2020-05-21

申请号：US16611598

申请日：2018-06-07

申请人： II-VI Delaware, Inc.

发明人： Giovanni Barbarossa

IPC分类号： H04J14/02 ,  H04B10/40 ,  G02B6/122 ,  H01S3/067 ,  G02B6/12 ,  G02B6/124

摘要： An integrated wavelength division multiplexing (WDM) optical transceiver comprises the following elements: (1) a light source; (2) an array of photodiodes responsive to a plurality of optical signals and forming a plurality of electrical received information signals therefrom; and (3) a photonics integrated module (PIM) including transmission components and receiving components necessary to provide transceiver functionality. The transmission components include a demultiplexer, an electro-optic modulator array, and a multiplexer for combining a plurality of modulated optical signals onto a single output signal path as the transceiver output. The receiving components include a demultiplexer responsive to an incoming WDM signal for separating each wavelength component and creating a plurality of received optical signals.

公开(公告)号：US20200025985A1

公开(公告)日：2020-01-23

申请号：US16042319

申请日：2018-07-23

申请人： II-VI Delaware, Inc.

发明人： Jean Axel Edmond Teissier ,  Julien Boucart

IPC分类号： G02B5/18 ,  H01S5/022 ,  H01S5/183 ,  H01S5/42 ,  H01S5/00

摘要： A structured light projector for generating a far-field image of light dots in a defined pattern is proposed, where the structured light projector includes a light source providing as an output a non-collimated light beam and a specialized diffractive optical element disposed to intercept the non-collimated light beam. The specialized diffractive optical element is formed to exhibit a non-uniform pattern of grating features configured to compensate for the non-planar wavefront and phase retardation of the non-collimated output beam, providing as an output of the projector an interference pattern of light dots exhibiting the desired configuration.