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公开(公告)号：US10749309B2
公开(公告)日：2020-08-18
申请号：US15648885
申请日：2017-07-13
申请人： II-VI Incorporated
发明人： Eric Timothy Green , Daniel Christopher Myers , Todd Gregory Starner , Martin Richard Williams , Mark Filipowicz
摘要： A fiber-based optical amplifier is assembled in a compact configuration by utilizing a flexible substrate to support the amplifying fiber as flat coils that are “spun” onto the substrate. The supporting structure for the amplifying fiber is configured to define the minimal acceptable bend radius for the fiber, as well as the maximum diameter that fits within the overall dimensions of the amplifier package. A pressure-sensitive adhesive coating is applied to the flexible substrate to hold the fiber in place. By using a flexible material with an acceptable insulative quality (such as a polyimide), further compactness in the final assembly is achieved by locating the electronics in a space underneath the fiber enclosure.
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公开(公告)号：US10373725B2
公开(公告)日：2019-08-06
申请号：US14817704
申请日：2015-08-04
申请人： II-VI INCORPORATED
发明人： Wen-Qing Xu , Chao Liu , Charles J. Kraisinger , Charles D. Tanner , Ian Currier , David Sabens , Elgin E. Eissler , Thomas E. Anderson
摘要： In a method of chemical vapor deposition (CVD) growth of a polycrystalline diamond film in a CVD reactor, a gas mixture of gaseous hydrogen and a gaseous hydrocarbon is introduced into the CVD reactor. A plasma formed from the gas mixture is maintained above a surface of a conductive substrate disposed in the CVD reactor and causes a polycrystalline diamond film to grow on the surface of the conductive substrate. A temperature T at the center of the polycrystalline diamond film is controlled during growth of the polycrystalline diamond film. The CVD grown polycrystalline diamond film includes diamond crystallites that can have a percentage of orientation along a [110] diamond lattice direction≥70% of the total number of diamond crystallites forming the polycrystalline diamond film.
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公开(公告)号：US10294584B2
公开(公告)日：2019-05-21
申请号：US13255151
申请日：2010-03-25
摘要： A physical vapor transport growth system includes a growth chamber charged with SiC source material and a SiC seed crystal in spaced relation and an envelope that is at least partially gas-permeable disposed in the growth chamber. The envelope separates the growth chamber into a source compartment that includes the SiC source material and a crystallization compartment that includes the SiC seed crystal. The envelope is formed of a material that is reactive to vapor generated during sublimation growth of a SiC single crystal on the SiC seed crystal in the crystallization compartment to produce C-bearing vapor that acts as an additional source of C during the growth of the SiC single crystal on the SiC seed crystal.
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公开(公告)号：US10280511B2
公开(公告)日：2019-05-07
申请号：US15447300
申请日：2017-03-02
申请人： II-VI Incorporated
IPC分类号： C23C16/511 , C23C16/27 , C30B29/04 , C23C16/455 , 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. A method of microwave plasma CVD growth of a diamond film on the substrate is also disclosed.
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公开(公告)号：US10215624B2
公开(公告)日：2019-02-26
申请号：US15342156
申请日：2016-11-03
申请人： II-VI Incorporated
发明人： Michael Cahill
摘要： An integrated optical tap monitor takes the form of a highly-reflective outer coating disposed over the active region of an associated photodetector. The coating is of a material that allows for a majority of the impinging optical signal to be re-directed into an output path, while passing a small portion of the signal into the photodetector's active region for monitoring purposes. The integrated configuration is small enough to be housed within a standard TO can, and additional optical components (filters, attenuators, etc.) may be co-located with the integrated tap monitor. By virtue of incorporating the monitoring function with a reflective surface, the integrated tap monitor may be substituted for a turning mirror at any place along a signal path and provide the benefit of power monitoring while also performing signal re-direction.
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公开(公告)号：US10186829B2
公开(公告)日：2019-01-22
申请号：US15492364
申请日：2017-04-20
申请人： II-VI Incorporated
发明人： Nadhum Kadhum Zayer
IPC分类号： H01S3/13 , H01S3/108 , H01S5/0687 , G02B6/02 , G02B6/42
摘要： A compact, wavelength-stabilized laser source is provided by utilizing a specialty gain element (i.e., formed to include a curved waveguide topology), where a separate wavelength stabilization component (for example, a fiber Bragg grating (FBG)) is used one of the mirrors for the laser cavity. That is, the FBG takes the place of the physical “front facet” of the gain element, and functions to define the laser cavity in the first instance, while also utilizing the grating structure to impart the desired wavelength stability to the output from the packaged laser source. As a result, the FBG is disposed within the same package used to house the gain element and provides a wavelength-stabilized laser source in a compact form.
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公开(公告)号：US20170219778A1
公开(公告)日：2017-08-03
申请号：US15011370
申请日：2016-01-29
申请人： II-VI Incorporated
发明人： Mark Filipowicz , Mark H. Garrett
IPC分类号： G02B6/36
CPC分类号： G02B6/3644 , G02B6/3518 , G02B6/3556 , G02B6/3668 , G02B6/3672 , G02B6/3692
摘要： A two-dimensional (2D) optical fiber array component takes the form of a (relatively inexpensive) fiber guide block that is mated with a precision output element. The guide block and output element are both formed to include a 2D array of through-holes that exhibit a predetermined pitch. The holes formed in the guide block are relatively larger than those in precision output element. A loading tool is used to hold a 1×N array of fibers in a fixed position that exhibits the desired pitch. The loaded tool (holding the pre-aligned 1×N array of fibers) is then inserted through the aligned combination of the guide block and output element, and the fiber array is bonded to the guide block. The tool is then removed, re-loaded, and the process continued until all of the 1×N fiber arrays are in place. By virtue of using a precision tool to load the fibers, the guide block does not have to be formed to exhibit precise through-hole dimensions, allowing for a relatively inexpensive guide block to be used.
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公开(公告)号：US20170187484A1
公开(公告)日：2017-06-29
申请号：US15456660
申请日：2017-03-13
申请人： II-VI INCORPORATED
发明人： Michael Cahill
CPC分类号： H04J14/0221 , H04B10/07955 , H04B10/07957 , H04J14/0227 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0009 , H04Q2011/0039 , H04Q2011/0041 , H04Q2011/0083
摘要： A multiport optical switch is used to controllably select a specific incoming optical signal that is to be processed by an associated optical channel monitor (OCM). The OCM includes a tunable optical filter and photodetector arrangement, and is configured to measure the optical spectrum of the incoming optical signal and extract information associated with the various optical channels forming the incoming optical signal (i.e., power, wavelength, OSNR, etc., per channel in the signal). The OCM also includes a processor that generates a pair of output control signals, a first signal to control the wavelength scanning process of the tunable optical filter and a second signal to control the setting of the multiport optical switch. The second signal may also be used to perform “detuning” of a selected input of the multiport optical switch, providing the ability to adjust the power level of an input signal prior to entering the OCM.
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公开(公告)号：US09628174B2
公开(公告)日：2017-04-18
申请号：US14754827
申请日：2015-06-30
申请人： II-VI Incorporated
CPC分类号： H04B10/07957 , G02B6/29361 , G02B6/3548 , H04B10/07953 , H04B10/07955 , H04J14/0227 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0039 , H04Q2011/0083
摘要： A multiport optical switch (such as an N×1 switch) is used to controllably select a specific incoming optical signal that is to be processed by an associated optical channel monitor (OCM). The OCM includes a tunable optical filter and photodetector arrangement, and is configured to measure the optical spectrum of the incoming optical signal and extract information associated with the various optical channels (wavelengths) forming the incoming optical signal (i.e., power, wavelength, OSNR and the like for each channel). The OCM also includes a signal processing component that generates a pair of output control signals, a first signal to control the wavelength scanning process of the tunable optical filter and a second signal to control the setting of the multiport optical switch.
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公开(公告)号：US20160240999A1
公开(公告)日：2016-08-18
申请号：US15041587
申请日：2016-02-11
申请人： II-VI Incorporated
CPC分类号： H01S5/02236 , H01S5/0201 , H01S5/0215 , H01S5/0224 , H01S5/02252 , H01S5/02272 , H01S5/02469 , H01S5/4031
摘要： A densely-spaced single-emitter laser diode configuration is created, by using a laser bar (or similar array configuration) attached to a submount component of a size sufficient to adequately support the enter laser structure. The surface of the submount component upon which the laser structure is attached is metallized and used to form the individual electrical contacts to the laser diodes within the integrated laser structure. Once attached to each other, the laser structure is singulated by creating vertical separations between adjacent light emission areas. The submount metallization is similarly segmented, creating separate electrodes that are used to individually energize their associated laser diodes.
摘要翻译： 通过使用附接到足以支持进入激光器结构的尺寸的基座部件的激光棒（或类似的阵列配置）来创建密集间隔的单发射器激光二极管配置。 附接有激光结构的基座部件的表面被金属化并且用于在集成激光器结构内的激光二极管上形成各个电接触。 一旦相互连接，通过在相邻的发光区域之间产生垂直分离来对激光器结构进行分割。 基座金属化类似地分段，产生用于单独激励其相关联的激光二极管的单独的电极。
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