-
公开(公告)号：US20220158417A1
公开(公告)日：2022-05-19
申请号：US17097330
申请日：2020-11-13
申请人： II-VI Delaware, Inc.
摘要： A vertical cavity surface emitting laser (VCSEL) array is fabricated to produce multiple wavelengths. A first distributed Bragg reflector (DBR) is formed on a substrate, and an optical layer having an active region is formed on the first DBR. The optical layer has a variation in optical characteristic configured to generate multiple wavelengths. To do this, a first portion of the layer is formed on the first DBR. Different dimensioned features (profiles, wells, trenches, gratings, etc.) are then formed on a surface of the first portion. Subsequently, a second portion of the layer is formed by filling in the dimensioned features on the first portion's surface. Finally, a second DBR is formed on the second portion of the layer. The variation in optical characteristic can include variation in refractive index, physical thickness, or both. The assembly can be processed as usual to produce a VCSEL array having multiple emitters.
-
公开(公告)号：US20220149948A1
公开(公告)日：2022-05-12
申请号：US17649139
申请日：2022-01-27
申请人： II-VI Delaware, Inc.
摘要： An apparatus and method for signaling and transmitting data through an optical link is described. The apparatus may include a connector including a first plurality of contacts compatible with an enhanced SFP (SFP+) connector. The connector further includes an additional contact formed at a space adjacent to the first plurality of contacts. A tone generator couples to the additional contact to receive a first signal and to generate a first distinct tone indicative of the first signal for transmission via the additional contact. The method may include generating a first distinct tone indicative of a first signal providing control or status of an apparatus and transmitting or receiving a differential data signal over a portion of a first plurality of contacts compatible with an enhanced SFP (SFP+) connector. The first distinct tone is transmitted over the additional contact formed in a space adjacent to the first plurality of contacts.
-
公开(公告)号：US11313037B2
公开(公告)日：2022-04-26
申请号：US16750753
申请日：2020-01-23
申请人： II-VI Delaware, Inc.
摘要： A method of making a multilayer substrate, which can include a silicon layer having an optically finished surface and a chemical vapor deposition (CVD) grown diamond layer on the optically finished surface of the silicon layer. At the interface of the silicon layer and the diamond layer, the optically finished surface of the silicon layer can have a surface roughness (Ra)≤100 nm. A surface of the grown diamond layer opposite the silicon layer can be polished to an optical finish and a light management coating can be applied to the polished surface of the grown diamond layer opposite the silicon layer. A method of forming the multilayer substrate is also disclosed.
-
公开(公告)号：US20220085790A1
公开(公告)日：2022-03-17
申请号：US17535868
申请日：2021-11-26
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
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.
-
85.发明申请公开(公告)号：US20220075214A1
公开(公告)日：2022-03-10
申请号：US17016947
申请日：2020-09-10
申请人： II-VI Delaware, Inc.
发明人： Ryan Davis , Wen-Qing Xu , Elgin Eissler , Fred Kropf
摘要： A high-power electro-optic modulator (EOM) is formed to use specialized electrodes of a material selected to have a CTE that matches the CTE of the modulator's crystal. Providing CTE matching reduces the presence of stress-induced birefringence, which is known to cause unwanted modulation of the propagating optical signal. The specialized electrodes are preferably formed of a CuW metal matrix composite having a W/Cu ratio selected to create the matching CTE value. Advantageously, the CuW-based electrodes also exhibit a thermal conductivity about an order of magnitude greater than conventional electrode material (brass, Kovar) and thus provide additional thermal stability to the EOM's performance.
-
公开(公告)号：US20220063017A1
公开(公告)日：2022-03-03
申请号：US17382647
申请日：2021-07-22
申请人： II-VI Delaware, Inc
发明人： Axel Heinrici , Paul Sonntag , Patrick Kühl , Rutger Wevers , Matthias Waschicek
IPC分类号： B23K26/06 , B23K26/082 , B23K26/26
摘要： A laser processing head for a laser beam uses actuators engaged with a delivery fiber end to deflect the fiber end relative to an optical axis. The laser beam from the fiber end is collimated by a collimator and is then focused by a focusing lens disposed in the head beyond the collimator to a focal point. The focal point of the laser beam is deflected from the optical axis in relation to the deflection of the fiber end. The fiber end and the actuators are housed in a sealed module. Deflection of the laser beam can be sensed by reflecting portion of the laser beam to a sensing element so a control system can monitor and control the fiber end's movement.
-
公开(公告)号：US20220001488A1
公开(公告)日：2022-01-06
申请号：US16918037
申请日：2020-07-01
申请人： II-VI Delaware, Inc.
发明人： Haro Fritsche
摘要： A high power, dual wavelength laser source is formed of a plurality of conventional IR laser diodes disposed in an aligned configuration such that the output beams from the plurality of laser diodes may be simultaneously passed through a bulk optic frequency multiplying device (e.g., a second-harmonic or third-harmonic generating crystal). The combination of the individual laser diodes creates a high power input beam, where the power level itself is determined by the number of individual devices (or bars) used at the input. The frequency multiplying device creates a known harmonic of the input beam, providing as an output two beams, one operating at the original wavelength (denoted λ) and another operating at a fraction of that original wavelength.
-
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
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.
-
89.发明授权公开(公告)号：US11214871B2
公开(公告)日：2022-01-04
申请号：US16387042
申请日：2019-04-17
申请人： II-VI Delaware, Inc.
IPC分类号： C23C16/511 , C23C16/27 , C30B29/04 , C23C16/455 , C30B25/00 , C30B35/00 , H01J37/32
摘要： A chemical vapor deposition (CVD) reactor includes a resonating cavity configured to receive microwaves. A microwave transparent window positioned in the resonating cavity separates the resonating cavity into an upper zone and a plasma zone. Microwaves entering the upper zone propagate through the microwave transparent window into the plasma zone. A substrate is disposed proximate a bottom of the plasma zone opposite the microwave transparent window. A ring structure, positioned around a perimeter of the substrate in the plasma zone, includes a lower section that extends from the bottom of the resonating cavity toward the microwave transparent window and an upper section on a side of the lower section opposite the bottom of the resonating cavity. The upper section extends radially toward a central axis of the ring structure. An as-grown diamond film on the substrate is also disclosed.
-
公开(公告)号：US11177886B2
公开(公告)日：2021-11-16
申请号：US16812186
申请日：2020-03-06
申请人： II-VI Delaware, Inc.
发明人： Martin Williams , Yajun Wang , Eric Green , Aravanan Gurusami , Deepak Devicharan , Timothy Zahnley , Mike Burgess
IPC分类号： H04B10/00 , H04B10/297 , H01S3/067
摘要： A pluggable bidirectional optical amplifier module may include preamp and booster optical amplifiers and a housing. The preamp optical amplifier may be configured to amplify optical signals traveling in a first direction. The booster optical amplifier may be configured to amplify optical signals traveling in a second direction. The housing may at least partially enclose the preamp optical amplifier and the booster optical amplifier. The pluggable bidirectional optical amplifier module may have a mechanical form factor that is compliant with a pluggable communication module form factor MSA. A colorless mux/demux cable assembly may be operated with the pluggable bidirectional optical amplifier. The colorless mux/demux cable assembly may include a 1:N optical splitter a N:1 optical combiner coupled side-by-side to the 1:N optical splitter, a first fiber optic cable optic cable, and a second fiber optic cable.
-
-
-
-
-
-
-
-
-
搜索结果
521 条记录 (耗时 0.034 秒)
