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公开(公告)号：US20190245624A1
公开(公告)日：2019-08-08
申请号：US16343349
申请日：2017-10-16
发明人： Toshiki KISHI , Munehiko NAGATANI , Shinsuke NAKANO , Hiroaki KATSURAI , Masafumi NOGAWA , Hideyuki NOSAKA
IPC分类号： H04B10/50 , H04B10/572 , H01S5/0687 , H01S5/042 , H01S3/131
CPC分类号： H04B10/504 , H01S3/1317 , H01S5/042 , H01S5/0427 , H01S5/0687 , H03F1/22 , H03K19/0175 , H04B10/54 , H04B10/572
摘要： A driver circuit 11 includes a plurality of cascode-connected NMOS transistors, a modulating signal VGN1 is applied to a gate terminal of a lowermost stage transistor TN1 located at a lowermost stage out of the NMOS transistors, and an upper stage bias potential VGN2 that is a sum of a minimum gate-source voltage VGN1min and a maximum drain-source voltage VDS1max of a transistor (TN1) located immediately below an upper stage transistor located at an upper stage above the lowermost stage transistor of the NMOS transistors is applied to the upper stage transistor TN2.
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公开(公告)号：US09985409B2
公开(公告)日：2018-05-29
申请号：US15483228
申请日：2017-04-10
申请人： FANUC CORPORATION
发明人： Hiroshi Takigawa , Yuji Nishikawa
CPC分类号： H01S3/0407 , B23K26/703 , H01S3/0014 , H01S3/1305 , H01S3/1306 , H01S3/1317 , H01S5/02423 , H01S5/06804
摘要： A calculation part calculates a maximum temperature reached which is reached by the coolant or component of each part, in the case of machining in accordance with laser machining conditions that were inputted or set, based on the cooling capacity of a chiller, tank volume of the chiller, heat generation amount from the laser oscillator, heat capacity of a cooled part of the laser device, etc. which are recorded in a recording part, and the temperature of each part measured by temperature detection parts, etc. In the case that the maximum temperature reached would exceed the allowed maximum temperature, a warning is made prior to starting laser machining.
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公开(公告)号：US20180026416A1
公开(公告)日：2018-01-25
申请号：US15550896
申请日：2015-11-20
发明人： Jiro KASAHARA , Junnosuke NAKATANI , Yuichi OTANI , Naoki INOUE , Koichi HAMAMOTO , Shingo NISHIKATA
CPC分类号： H01S3/0407 , H01S3/042 , H01S3/091 , H01S3/1317
摘要： A laser oscillation cooling device (100) includes a light emitting section (1) that emits laser excitation light (Z1), a laser excitation section (2) that excites the laser excitation light (Z1) to emit laser light (Z2) and has a heat generating region (S) where heat is locally generated, a storage tank (3) capable of storing an extremely low temperature liquid (L), a pressurizing section (31) that brings the extremely low temperature liquid (L) into a sub-cool state by pressurizing the inside of the storage tank (3), and a jetting supply section (4) that removes heat from the laser excitation section (2) by jetting the extremely low temperature liquid (L) in the sub-cool state from a plurality of jet ports arrayed in a two-dimensional manner to the laser excitation section (2).
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公开(公告)号：US09859674B2
公开(公告)日：2018-01-02
申请号：US15507025
申请日：2015-09-25
发明人： Jiro Kasahara , Naoki Inoue , Koichi Hamamoto
CPC分类号： H01S3/0407 , H01S3/04 , H01S3/042 , H01S3/1306 , H01S3/1317 , H01S3/16 , H01S3/1636 , H01S3/1643
摘要： A laser oscillation cooling device (100) is provided with a light emitting section (1) that emits laser excitation light (Z1), a laser excitation section (2) that excites the laser excitation light (Z1) to emit laser light (Z2) and locally generates heat, a storage tank (3) capable of storing an extremely low temperature liquid (L), a pressurizing section (31) that brings extremely low temperature liquid (L) into a sub-cool state by pressurizing the inside of the storage tank (3), and a jetting supply section (4) that removes heat from the laser excitation section (2) by jetting the extremely low temperature liquid (L) in the sub-cool state to the laser excitation section (2).
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公开(公告)号：US09825424B2
公开(公告)日：2017-11-21
申请号：US15306565
申请日：2015-01-09
IPC分类号： H01S3/067 , H01S3/13 , G02B6/12 , G02B6/42 , H01S3/131 , H01S3/063 , H01S3/102 , H01S3/17 , G02B6/43 , H01S3/08 , H01S3/16
CPC分类号： H01S3/1317 , G02B6/4266 , G02B6/4293 , G02B6/43 , H01S3/0632 , H01S3/0637 , H01S3/08054 , H01S3/1028 , H01S3/1603 , H01S3/163 , H01S3/17
摘要： An object is to provide an optical device capable of relaxing a manufacturing condition for an optical waveguide used in the optical device. An optical device 500 is provided with an optical waveguide 200 including a core and a cladding optically joined together, and a temperature controller 600 that controls temperature of the optical waveguide, wherein the optical waveguide includes the core and the cladding formed such that a normalized frequency specified for light propagating through the optical waveguide changes across a cutoff frequency of a guided mode determined from a structure of the optical waveguide in a temperature range in which a refractive index of the core is higher than a refractive index of the clad. The temperature controller controls the temperature of the optical waveguide over a temperature range across temperature at which the normalized frequency equals to the cutoff frequency.
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公开(公告)号：US20170127949A1
公开(公告)日：2017-05-11
申请号：US15410902
申请日：2017-01-20
发明人： Koichi Suzuki
CPC分类号： A61B5/0095 , A61B5/14542 , H01S3/0404 , H01S3/0407 , H01S3/042 , H01S3/092 , H01S3/106 , H01S3/115 , H01S3/1305 , H01S3/1317 , H01S3/1625 , H01S3/1633 , H01S3/1636
摘要： An object information acquiring apparatus is used which includes: a laser medium; a temperature controlling unit for controlling a temperature of the laser medium; an excitation unit for exciting the laser medium; a control unit for controlling the temperature controlling unit and the excitation unit; a probe for receiving acoustic waves that are generated when an object is irradiated with a laser beam from the laser medium; and a processing unit for acquiring characteristic information relating to the object from the acoustic waves, wherein the control unit does not operate the excitation unit until the temperature of the laser medium falls within a predetermined range.
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7.发明申请公开(公告)号：US20160336707A1
公开(公告)日：2016-11-17
申请号：US15151890
申请日：2016-05-11
申请人： FANUC CORPORATION
CPC分类号： H01S3/0407 , G01K13/00 , H01S3/0014 , H01S3/1317 , H01S5/0014 , H01S5/02423
摘要： A laser device provided with the function of predicting occurrence of condensation and preventing occurrence of condensation in advance. The laser device is provided with a controlling part calculating a reference temperature for judging whether a cooling water feed device may feed cooling water based on a temperature measured by a thermometer and a humidity measured by a hygrometer, and a comparing part comparing a reference temperature and a cooling water temperature. The cooling water feed device is configured to stop the feed of cooling water after a command for starting up the laser oscillator has been output and the cooling water temperature is lower than the reference temperature and to start or continue the feed of cooling water when the cooling water temperature is the reference temperature or more.
摘要翻译： 一种预先具有预测冷凝发生功能并防止发生冷凝的功能的激光装置。 该激光装置设有控制部，其计算基准温度，用于判断冷却水供给装置是否可以基于由温度计测量的温度和由湿度计测量的湿度供给冷却水;以及比较部，将比较基准温度和 冷却水温度。 冷却水供给装置被配置为在已经输出了用于启动激光振荡器的命令并且冷却水温度低于参考温度之后停止冷却水的供给，并且当冷却水开始或继续供应冷却水时 水温是参考温度以上。
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公开(公告)号：US20160104996A1
公开(公告)日：2016-04-14
申请号：US14511865
申请日：2014-10-10
申请人： The Boeing Company
CPC分类号： H01S3/1305 , G02B26/06 , G02F1/0147 , H01S3/0085 , H01S3/1307 , H01S3/1317 , H01S3/23
摘要： A laser system and associated method are provided for controlling the wave front of a primary laser beam. The laser system includes a laser medium for producing a primary laser beam and at least one optical element to which the primary laser beam is directed. The laser system also includes a secondary laser source for producing a secondary laser beam. The laser system may further include a spatial light modulator configured to receive the secondary laser beam and to spatially modulate the secondary laser beam to create a spatially modulated secondary laser beam having a spatial intensity pattern. The spatially modulated secondary laser beam may impinge upon at least one of the laser medium or the at least one optical element in order to selectively modify the temperature of portions of the laser medium or the at least one optical element upon which the spatially modulated secondary laser beam impinges.
摘要翻译： 提供了一种用于控制主激光束的波前的激光系统和相关方法。 激光系统包括用于产生主激光束的激光介质和主激光束被引向的至少一个光学元件。 激光系统还包括用于产生次级激光束的次级激光源。 激光系统还可以包括空间光调制器，其被配置为接收次级激光束并空间调制次级激光束以产生具有空间强度图案的空间调制次级激光束。 空间调制的次级激光束可以撞击到激光介质或至少一个光学元件中的至少一个，以便选择性地改变激光介质或至少一个光学元件的部分的温度，在该光学元件上空间调制的次级激光 射线撞击。
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9.发明申请公开(公告)号：US20150372448A1
公开(公告)日：2015-12-24
申请号：US14824964
申请日：2015-08-12
申请人： NOVATRANS GROUP SA
发明人： John CONNOLLY , John F. ROULSTON , Daniel MANDELIK
IPC分类号： H01S3/131 , H01S3/04 , G01N21/3586 , H01S1/02
CPC分类号： H01S3/1317 , F25B21/02 , F25B2321/021 , G01N21/3586 , H01L35/325 , H01S1/02 , H01S3/0405 , H01S5/02415
摘要： A thermo-electric cooling (TEC) system is presented for cooling of a device, such a laser for example. The TECT system comprises first and second heat pumping assemblies, and a control unit associated at least with said second heat pumping assembly. Each heat pumping assembly has a heat source from which heat is pumped and a heat drain through which pumped heat is dissipated. The at least first and second heat pumping assemblies are arranged in a cascade relationship having at least one thermal interface between the heat source of the second heat pumping assembly and the heat drain of the first heat pumping assembly, the heat source of the first heat pumping assembly being thermally coupled to the electronic device which is to be cooled by evacuating heat therefrom. The control unit is configured and operable to carry out at least one of the following: (i) operating said second heat pumping assembly to provide a desired temperature condition such that temperature of the heat drain of said first heat pumping assembly is either desirably low or by a certain value lower than temperature of the heat source of said first heat pumping assembly; and (ii) operating said second heat pumping assembly to maintain predetermined temperature of said thermal interface.
摘要翻译： 提出了一种用于冷却器件（例如激光器）的热电冷却（TEC）系统。 TECT系统包括第一和第二热泵组件，以及至少与所述第二热泵组件相连的控制单元。 每个热泵组件都具有一个热源，热量从该热源被泵送，并且一个散热通过该热量消散。 至少第一和第二热泵组件布置成级联关系，其具有在第二热抽运组件的热源和第一热泵组件的热源之间的至少一个热界面，第一热泵的热源 组件热耦合到待通过从其中排出热量而被冷却的电子设备。 控制单元被配置和操作以执行以下至少一个：（i）操作所述第二热泵组件以提供期望的温度条件，使得所述第一热泵组件的排水温度理想地为低或 低于所述第一热泵组件的热源的温度的一定值; 和（ii）操作所述第二热泵组件以维持所述热界面的预定温度。
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公开(公告)号：US20130329277A1
公开(公告)日：2013-12-12
申请号：US13870305
申请日：2013-04-25
申请人： FUJITSU LIMITED
发明人： Yuichi SUZUKI
IPC分类号： H01S3/30
CPC分类号： H04B10/2941 , H01S3/06754 , H01S3/094003 , H01S3/094096 , H01S3/09415 , H01S3/10023 , H01S3/10069 , H01S3/1022 , H01S3/1301 , H01S3/1305 , H01S3/1312 , H01S3/1317 , H01S3/302 , H01S5/06804 , H01S5/141 , H01S5/146 , H04B10/2916
摘要： An optical amplifier includes: a temperature-adjustment-unit that is provided in a wavelength-fixing-unit that fixes a center-wavelength of an excitation-light-source, and adjusts a temperature of the wavelength-fixing-unit, which causes the center-wavelength of the excitation-light-source to vary; a temperature-measurement-unit that measures the temperature of the wavelength-fixing-unit and a temperature of a gain-equalization-unit that equalizes gains of the signal-light on which the Raman amplification is performed using the excitation-light-source; a shift-amount-obtaining-unit that obtains a shift amount data of the center-wavelength of the excitation-light-source from a first-storage-unit and obtains a shift amount of the center-wavelength of the wavelength-band from a second-storage-unit; and a control unit that obtains a temperature-data of the-wavelength-fixing-unit, which corresponds to a difference between two shift amounts that are obtained by the shift amount obtaining unit, from the first-storage-unit, and controls the temperature of the wavelength-fixing-unit based on the obtained temperature-data.
摘要翻译： 光放大器包括：温度调节单元，设置在固定激发光源的中心波长的波长固定单元中，并调节波长固定单元的温度，这导致 激发光源的中心波长变化; 用于测量波长定影单元的温度的温度测量单元和均衡单元的温度，该均衡单元的均匀化是利用激发光源进行拉曼放大的信号光的增益; 移位量获取单元，从第一存储单元获取激励光源的中心波长的移位量数据，并获得波长带的中心波长的偏移量， 第二存储单元; 以及控制单元，其从第一存储单元获取对应于由移动量获取单元获得的两个移位量之间的差异的波长定影单元的温度数据，并且控制温度数据 基于获得的温度数据的波长固定单元。
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