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公开(公告)号：US10297980B2
公开(公告)日：2019-05-21
申请号：US15377222
申请日：2016-12-13
申请人： Coherent, Inc.
摘要： A diode-laser assembly having an electrically isolated diode-laser bar on a cooled base-element is disclosed. The diode-laser bar is electrically isolated from the base-element and electrically isolated from any coolant water, thereby eliminating the need for de-ionized water and mitigating corrosion due to galvanic action. Multiple such diode-laser assemblies are stackable, with small bar-to-bar pitch, enabling a high-current and high-brightness diode-laser stack.
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公开(公告)号：US20180161918A1
公开(公告)日：2018-06-14
申请号：US15889791
申请日：2018-02-06
申请人： Coherent, Inc.
发明人： Ramanujapuram A. SRINIVAS , David M. GAUDIOSI , Timothy BOOTH , Michael SHIRK , Eric JUBAN , Michael MIELKE
CPC分类号： B23K26/354 , C03B33/0222 , C03B33/04
摘要： Methods of and devices for forming edge chamfers and through holes and slots on a material that is machined using a laser, such as an ultrafast laser. The shaped material has predetermined and highly controllable geometric shape and/or surface morphology. Further, a method of and a device for preventing re-deposition of the particles on a material that is machined using a laser, such as an ultrafast laser. A fluid is used to wash off the particles generated during the laser machining process. The fluid can be in a non-neutral condition, with one or more chemical salts added, or a condition allowing the coagulation of the particles in the fluid, such that the particles can be precipitated to avoid the reattachment to the machined substrate.
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公开(公告)号：US20180087959A1
公开(公告)日：2018-03-29
申请号：US15712513
申请日：2017-09-22
申请人： Coherent, Inc.
发明人： Erik KROUS , Jimson LOUNSBURY , Joseph IMAMURA , James SCHLOSS
IPC分类号： G01J1/04 , G01J1/42 , G01J5/04 , H01L31/0368 , G01K17/00
摘要： A laser-radiation detector is formed from a plurality of layers supported on a substrate. The plurality of layers includes a reflective metal layer and an oriented polycrystalline sensor-layer positioned between the metal layer and the substrate.
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公开(公告)号：US09784957B2
公开(公告)日：2017-10-10
申请号：US15207319
申请日：2016-07-11
申请人： Coherent, Inc.
发明人： Erik Nackerud , Jimson Lounsbury , Patrick Kain
CPC分类号： G02B19/0014 , G02B19/0052 , G02B27/0927 , G02B27/0955 , G02B27/0966
摘要： In a line projector a diode-laser beam having an elliptical cross-section is projected onto a Powell lens which spreads the beam to form a line of light. Distribution of power along the line of light is adjusted by rotating the diode-laser beam with respect to the Powell lens.
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公开(公告)号：US20170179686A1
公开(公告)日：2017-06-22
申请号：US15377222
申请日：2016-12-13
申请人： Coherent, Inc.
CPC分类号： H01S5/4025 , H01L2224/48091 , H01L2224/4901 , H01L2224/49175 , H01S5/02272 , H01S5/02276 , H01S5/02423 , H01S5/02469 , H01S5/02476 , H01S5/3013 , H01S5/4018 , H01S5/4031 , H01S5/405 , H01L2924/00014
摘要： A diode-laser assembly having an electrically isolated diode-laser bar on a cooled base-element is disclosed. The diode-laser bar is electrically isolated from the base-element and electrically isolated from any coolant water, thereby eliminating the need for de-ionized water and mitigating corrosion due to galvanic action. Multiple such diode-laser assemblies are stackable, with small bar-to-bar pitch, enabling a high-current and high-brightness diode-laser stack.
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公开(公告)号：US20160294145A1
公开(公告)日：2016-10-06
申请号：US14245913
申请日：2014-04-04
申请人： Coherent, Inc.
发明人： Dmitri SIMANOVSKI , Norman HODGSON
CPC分类号： H01S3/0057 , G01J3/14 , G01J3/18 , G02B27/1006 , G02B27/4244 , G02F1/353 , G02F1/365 , G02F2001/3528 , G02F2203/055 , G02F2203/255 , G02F2203/58 , H01S3/005 , H01S3/0078 , H01S3/0092 , H01S3/06758 , H01S3/1618 , H01S3/2308 , H01S2301/08
摘要： A source of femtosecond pulses at center wavelengths of about 940 nm and about 1140 nanometers (nm) includes a mode-locked fiber MOPA delivering pulses having a center wavelength of about 1040 nm. The 1040-nanometer pulses are spectrally spread into a continuum spectrum extending in range between about 900 nm and about 1200 nm and having well defined side-lobes around the 940-nm and 1140-wavelengths. Radiation is spatially selected from these side-lobes and delivered as the 940-nm and 1140-nm pulses.
摘要翻译： 在约940nm和约1140纳米（nm）的中心波长处的飞秒脉冲源包括递送具有约1040nm的中心波长的脉冲的锁模光纤MOPA。 1040纳米脉冲光谱扩展到在约900nm和约1200nm之间的范围内延伸的连续谱，并且具有围绕940nm和1140波长的明确限定的旁瓣。 从这些旁瓣空间选择辐射，并以940nm和1140nm脉冲递送辐射。
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公开(公告)号：US20160204566A1
公开(公告)日：2016-07-14
申请号：US14987473
申请日：2016-01-04
申请人： Coherent, Inc.
发明人： Alan H. FIELD , David ALLIE
CPC分类号： H01S3/09702 , H01S3/0014 , H01S3/10069 , H01S3/104 , H01S3/1305 , H01S3/1306 , H01S3/134 , H01S3/2232
摘要： The present disclosure is directed to simultaneously controlling peak pulse power and pulse energy in gas-discharge lasers. In an aspect, a radio-frequency power supply that is coupled to a gas-discharge laser is turned ON to initiate delivery of a laser pulse. The radio-frequency power supply is modulated ON/OFF to maintain the amplitude of the laser pulse at about a desired or prescribed value. Further, the radio-frequency power supply is turned OFF to terminate delivery of the laser pulse when the accumulated energy reaches reached a predefined energy threshold value.
摘要翻译： 本发明旨在同时控制气体放电激光器中的峰值脉冲功率和脉冲能量。 在一方面，连接到气体放电激光器的射频电源被接通以启动激光脉冲的传递。 射频电源被调制为ON / OFF，以将激光脉冲的幅度保持在大约所需的或规定的值。 此外，当累积能量达到达到预定的能量阈值时，射频电源被关闭以终止激光脉冲的传送。
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公开(公告)号：US09290009B2
公开(公告)日：2016-03-22
申请号：US14614205
申请日：2015-02-04
申请人： Coherent, Inc.
发明人： Sergei Govorkov , John H. Jerman
CPC分类号： B41J2/442 , B41J2/47 , B41J3/4075
摘要： A laser label printer for use with a laser markable medium includes a laser-diode fiber-coupled to an optical train, which includes a focusing lens for focusing the radiation on the medium. The focusing lens is traversed across the medium, with incremental motion of the medium between traverses, for line by line printing of the label. The printer includes a feature for protecting the focusing lens from contamination, and self-diagnostic and adjustment features.
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99.发明申请METHODS AND APPARATUS RELATED TO A SIDE-FIRE MEMBER HAVING A DOPED SILICA COMPONENT 审中-公开与具有二氧化硅组分的侧面成员相关的方法和装置公开(公告)号：US20160054525A1
公开(公告)日：2016-02-25
申请号：US14931171
申请日：2015-11-03
CPC分类号： G02B6/262 , A61B1/0011 , A61B1/00137 , A61B1/0017 , A61B18/22 , A61B2018/2222 , A61B2018/2272 , A61B2018/2288 , C03B37/10 , G02B6/325 , G02B6/327 , G02B23/26
摘要： In one embodiment, an apparatus may Include an optical fiber that may have a surface non-normal to a longitudinal axis of a distal end portion of the optical fiber. The surface may define a portion of an interface configured to redirect electromagnetic radiation propagated from within the optical fiber and incident on the interface to a direction offset from the longitudinal axis. The apparatus may also include a doped silica cap that may be fused to the optical fiber such that the surface of the optical fiber may be disposed within a cavity defined by the doped silica cap.
摘要翻译： 在一个实施例中，装置可以包括可以具有与光纤的远端部分的纵向轴线不正交的表面的光纤。 该表面可以限定接口的一部分，其被配置为重定向从光纤内传播的电磁辐射，并且入射到界面上至与纵向轴线偏移的方向。 该装置还可以包括可以与光纤熔合的掺杂二氧化硅帽，使得光纤的表面可以设置在由掺杂的二氧化硅帽限定的空腔内。
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公开(公告)号：US20150194780A1
公开(公告)日：2015-07-09
申请号：US14549310
申请日：2014-11-20
申请人： Coherent, Inc.
发明人： Andrea CAPRARA , Luis A. SPINELLI , Arnaud LEPERT
IPC分类号： H01S3/00
CPC分类号： H01S3/0092 , G02F1/39 , G02F2001/392
摘要： An optical parametric oscillator includes one unidirectional enhancement resonator for optical pump-radiation and a second unidirectional resonator at least partially coaxial with the enhancement resonator. An optically nonlinear crystal is located in the coaxial portion of the resonators and converts the optical pump-radiation to signal radiation having a wavelength longer than that of the pump radiation and idler radiation having a wavelength longer than that of the signal radiation. The second resonator resonates the signal-wavelength radiation and delivers a fraction of that radiation as output radiation.
摘要翻译： 光学参量振荡器包括用于光泵浦辐射的一个单向增强谐振器和与增强谐振器至少部分同轴的第二单向谐振器。 光学非线性晶体位于谐振器的同轴部分中，并且将光泵浦辐射转换成具有比泵浦辐射更长的波长的信号辐射和具有比信号辐射更长的波长的惰轮辐射的信号辐射。 第二谐振器谐振信号波长辐射，并将该辐射的一部分作为输出辐射传递。
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