公开(公告)号：US11953741B2

公开(公告)日：2024-04-09

申请号：US17931792

申请日：2022-09-13

申请人： II-VI Delaware, Inc.

发明人： Long Van Nguyen

IPC分类号： H04B10/00 ,  G02B6/42 ,  G02B6/43

CPC分类号： G02B6/4246 ,  G02B6/426 ,  G02B6/4277 ,  G02B6/428 ,  G02B6/43

摘要： An example optoelectronic module includes a housing that extends between a first end and an opposite second end. The optoelectronic module includes a printed circuit board (“PCB”) with an electrical connector at an end thereof, a transmitter electrically coupled to the PCB, a receiver electrically coupled to the PCB, and a receiving member including a plurality of ports each configured to receive a respective one of a plurality of fiber optic cables. In one aspect, the receiving member includes a plurality of deformable retaining members configured to be positioned in corresponding receptacles of the housing member in an arrangement structured to limit movement of the receiving member. In another aspect, the module also includes a plurality of fiber optic cable receptacles and a receptacle retaining member is positioned between the housing and the receptacles and limits movement of the receptacles in the housing.

公开(公告)号：US20240082961A1

公开(公告)日：2024-03-14

申请号：US18368414

申请日：2023-09-14

申请人： II-VI Delaware, Inc.

发明人： Daniel Labahn ,  Danny Chan ,  Patrick Kuhl ,  Romon Chakrabarti ,  Andreas Ziemann ,  Hannes Noack

IPC分类号： B23K26/70 ,  B23K26/06

CPC分类号： B23K26/707 ,  B23K26/0643 ,  B23K26/0648

摘要： The disclosure relates to a system and a method for monitoring the state of optical elements of a device for laser material processing. According to the present disclosure a detailed monitoring of the state of optical elements of a device for laser material processing takes place by monitoring properties of laser radiation in the direction of an optical fiber or laser radiation entering a laser processing head connected to the laser source and these measurements, which can be performed during the processing process. The device according to the present disclosure has optical sensors for measuring the intensity and respective current laser power.

公开(公告)号：US20240073566A1

公开(公告)日：2024-02-29

申请号：US17822306

申请日：2022-08-25

申请人： II-VI Delaware, Inc.

发明人： Alan A. FENNEMA ,  Haijun Yuan ,  Wilfredo C. NANITA ,  Oswald CORREYA ,  Jack R KELLY ,  Thomas J. Schwartz

IPC分类号： H04Q11/00 ,  G02B5/32

CPC分类号： H04Q11/0003 ,  G02B5/32 ,  H04Q2011/0028

摘要： Advanced hologram techniques pre-calculate holograms to be displayed on an LCoS switch panel of a wavelength selective switch (WSS) module. The holograms are generated offline and are then stored on the WSS module for later retrieval. Each of the holograms is associated with a defined parameter, such as an attenuation level, and each of the holograms is configured to create a reconfigurable phase grating profile or pattern of the pixels of the LCoS switch panel. Each phase pattern selectively directs desired diffraction orders of optical channels from the LCoS switch panel for output to selected ports and selectively directs undesired diffraction orders away from the ports and at a desired attenuation level. During operation, the WSS module can retrieve the stored holograms. Interpolation can determine intermediate holograms between parameter values, and a ramp function can be added to the pattern to account for steering adjustments.

公开(公告)号：US11905618B2

公开(公告)日：2024-02-20

申请号：US17249597

申请日：2021-03-05

申请人： II-VI Delaware, Inc

发明人： Xueping Xu ,  Ilya Zwieback ,  Avinash Gupta ,  Varatharajan Rengarajan

IPC分类号： C30B25/02 ,  C30B29/36 ,  C30B23/06 ,  C01B33/025

CPC分类号： C30B25/02 ,  C01B33/025 ,  C30B23/06 ,  C30B29/36 ,  Y10T117/00

摘要： In an apparatus and method growing a SiC single crystal, a PVT growth apparatus is provided with a single crystal SiC seed and a SiC source material positioned in spaced relation in a growth crucible. A resistance heater heats the growth crucible such that the SiC source material sublimates and is transported via a temperature gradient that forms in the growth crucible in response to the heater heating the growth crucible to the single crystal SiC seed where the sublimated SiC source material condenses forming a growing SiC single crystal. Purely axial heat fluxes passing through the bottom and the top of the growth crucible form a flat isotherm at least at a growth interface of the growing SiC single crystal on the single crystal SiC seed.

公开(公告)号：US20240030684A1

公开(公告)日：2024-01-25

申请号：US18480067

申请日：2023-10-03

申请人： II-VI Delaware, Inc.

发明人： James K. GUENTER ,  Hao CHEN

IPC分类号： H01S5/183 ,  H01S5/343

CPC分类号： H01S5/18305 ,  H01S5/18361 ,  H01S5/34313 ,  H01S5/18358 ,  H01S5/18308 ,  H01S2304/04

摘要： A VC SEL can include: a substrate that passes light therethrough; a phase matching layer over a top mirror stack; a first metal layer over the phase matching layer; and an end metal region over the first metal layer. The phase matching layer and first metal layer have a cooperative thickness to provide reflectivity of at least a predetermined reflectivity threshold for the emission wavelength. A method of making a VCSEL can include: providing a substrate; forming a first mirror stack above the substrate; forming an active region above the first mirror stack; and forming a reflective end above the active region, the reflective end having a phase matching layer and a first metal layer. The phase matching layer and first metal layer have a combined thickness for the reflective end to have a reflectivity of at least a predetermined reflectivity threshold for an emission wavelength of the VCSEL.

公开(公告)号：US20240027784A1

公开(公告)日：2024-01-25

申请号：US18350511

申请日：2023-07-11

申请人： II-VI Delaware, Inc.

发明人： Jonathan PLUMRIDGE ,  Luke STEWART ,  Glenn BAXTER

IPC分类号： G02B27/42 ,  G02B5/18

CPC分类号： G02B27/4211 ,  G02B5/1814 ,  G02B5/1828

摘要： Described herein is a wavelength dispersive optical system (10). The system (10) comprises at least one optical input (12, 14, 16) for projecting an input optical beam comprising a plurality of individual wavelength components and at least one optical output (18) for receiving one or more output optical beams. The system (10) also includes a diffractive optical element (DOE) (1) including a substrate (2) and an array of physical diffraction elements (3). The diffraction elements (3) have a predefined spacing and/or curvature across a length of the DOE (1) and are collectively adapted to: i) spatially separate the individual wavelength components within the input optical beam to be formed into the one or more output optical beams; ii) impose predefined phase changes to the wavelength components to at least partially correct for optical aberrations to the input optical beam; and iii) impose predefined phase changes to the wavelength components to apply a wavelength dependent optical focusing to at least some of the wavelength components. The system (10) further includes an optical focusing element (5) having optical focusing properties complementary to the DOE (1) to modify the wavelength-dependent optical focusing of the wavelength components by the DOE (1).

公开(公告)号：US11882204B2

公开(公告)日：2024-01-23

申请号：US17304988

申请日：2021-06-29

申请人： II-VI Delaware, Inc

发明人： Puhui Miao ,  Huade Shu ,  Leo Lin

IPC分类号： H04L7/00 ,  H04J14/02 ,  H04B10/25 ,  H04B10/079 ,  H04B10/2575 ,  H04B10/564 ,  H04J3/06

CPC分类号： H04L7/0075 ,  H04B10/0795 ,  H04B10/2589 ,  H04B10/25753 ,  H04B10/564 ,  H04J14/0202 ,  H04J14/0221 ,  H04J14/0278 ,  H04J3/0641 ,  H04J3/0667

摘要： An optoelectronic module may include an optical receiver optically coupled with an optical fiber. The optical receiver may be configured to receive time synchronization signals from the optical fiber. The time synchronization signals may be frequency modulated, wavelength modulated, or amplitude modulated and may be received along with received data signals. A time synchronization signal detection module may be communicatively coupled to the optical receiver. The time synchronization signal detection module may be configured to receive the time synchronization signals that are transmitted through the optical fiber and detect frequency modulations, wavelength modulations, or amplitude modulations to recover the time synchronization signals.

公开(公告)号：US20230411927A1

公开(公告)日：2023-12-21

申请号：US17806987

申请日：2022-06-15

申请人： II-VI Delaware, Inc.

发明人： Theron JONES ,  Richard A. Davis ,  Brian CAREY ,  Michael YEUNG ,  Steve TROYER ,  Jonathan ASHBROOK

IPC分类号： H01S5/042 ,  H03K5/133

CPC分类号： H01S5/0428 ,  H03K5/133

摘要： An optical driver circuit is described herein having a plurality of drive cells and delay segments between their control signals resulting in the control of the rising and falling edge rates for an optical device driven by the optical driver circuit.

公开(公告)号：US11843364B2

公开(公告)日：2023-12-12

申请号：US17535868

申请日：2021-11-26

申请人： II-VI Delaware, Inc ,  University of South Florida

发明人： Wen-Qing Xu ,  Di Lan ,  Jing Wang ,  Weiqi Li ,  Xu Han ,  Chao Liu ,  Elgin Eissler ,  Giovanni Barbarossa

IPC分类号： H03H9/17 ,  H03H9/13 ,  H03H9/02

CPC分类号： H03H9/171 ,  H03H9/02102 ,  H03H9/02228 ,  H03H9/02275 ,  H03H9/02338 ,  H03H9/02448 ,  H03H9/13 ,  H03H9/175

摘要： An acoustic resonator includes a piezoelectric stack including a piezoelectric layer having a top surface and a bottom surface, a top electrode layer disposed above the top surface, and a bottom electrode layer disposed below the bottom surface. A number of acoustic wave reflectors are disposed on a side of the bottom electrode layer opposite the piezoelectric layer. Each acoustic wave reflector includes a high acoustic impedance layer and may include a low acoustic impedance layer. The acoustic resonator may include a tether that extends laterally to a stacking direction of the layers of the piezoelectric stack. A supporting structure may be coupled to the tether opposite the acoustic resonator for anchoring the acoustic resonator. A mirror, one or more phononic crystals, or both may be positioned on proximate the tether opposite the acoustic resonator to avoid resonant waves from exiting the acoustic resonator in use.

公开(公告)号：US20230384541A1

公开(公告)日：2023-11-30

申请号：US17826608

申请日：2022-05-27

申请人： II-VI Delaware, Inc.

发明人： Michael John Laurence CAHILL ,  Glenn D. Bartolini

IPC分类号： G02B6/42 ,  H04J14/02 ,  G02B6/02 ,  G02B5/28 ,  H04B10/67

CPC分类号： G02B6/4215 ,  H04J14/0204 ,  G02B6/02052 ,  G02B5/28 ,  H04B10/677

摘要： A wavelength reference device includes a broadband optical source, a repeating filter, and a wavelength-specific filter. The source, which can be a super-luminescent light-emitting diode (SLED), emits optical power. The repeating filter, which can be a Fabray-Perot etalon, filters the optical power into a repeating spectral response, and the wavelength-specific filter attenuates the optical power of at least one predefined wavelength response within the wavelength band. The repeating filter and the wavelength-specific filter output a wavelength reference signal having the repeating spectral response attenuated at the at least one predefined wavelength response. The predefined wavelength response reduces the ambiguity that can occur in the repeating frequency locations found in the repeating spectral response. In this way, an absolute wavelength reference is intrinsically provided in the wavelength reference that removes the location ambiguity caused by the repeating spectral response.