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：US11218132B2

公开(公告)日：2022-01-04

申请号：US16208857

申请日：2018-12-04

申请人： II-VI Delaware, Inc

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

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：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：US20190181830A1

公开(公告)日：2019-06-13

申请号：US16208857

申请日：2018-12-04

申请人： II-VI Incorporated ,  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

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.