-
公开(公告)号：US09851571B1
公开(公告)日：2017-12-26
申请号：US15236774
申请日：2016-08-15
Applicant: Coherent, Inc.
Inventor： Rui Zhang , Andrea Caprara
CPC classification number: G02B27/0961 , G02B19/0014 , G02B19/0057 , G02B27/0927 , G02B27/0966 , G02B27/30 , H01S5/4012 , H01S5/4031 , H01S2301/20
Abstract: Apparatus for generating a line-beam includes a diode-laser bar, a linear micro-lens array, and a plurality of lenses spaced apart and arranged along an optical axis. The linear micro-lens array and the lenses shape laser-radiation emitted by the diode-laser bar to form a uniform line-beam in an illumination plane. The lenses project a far-field image of the diode-laser bar onto an image plane proximate to the illumination plane. The diode-laser bar is rotated from parallel alignment with the linear micro-lens array for providing uniform line-beam illumination over a range of locations along the optical axis.
-
公开(公告)号：US20160313516A1
公开(公告)日：2016-10-27
申请号：US14691857
申请日：2015-04-21
Applicant: Coherent, Inc.
Inventor： Sergei GOVORKOV , Douglas W. Anthon , Andrea Caprara
CPC classification number: G02B6/32 , G02B2006/12102 , G02B2006/12121 , G02B2006/12147 , H01S3/005 , H01S3/067 , H01S3/2383
Abstract: Diverging beams from three fiber-lasers are collimated by a three-segment composite lens. The collimated beams propagate parallel to each other to a single focusing lens that focuses the collimated beams into a transport fiber.
Abstract translation: 来自三个光纤激光器的发散光束由三段复合透镜准直。 准直光束彼此平行地传播到将准直光束聚焦成传输光纤的单个聚焦透镜。
-
公开(公告)号：US09236708B2
公开(公告)日：2016-01-12
申请号：US14279189
申请日：2014-05-15
Applicant: Coherent, Inc.
Inventor： Ian MacGillivray , Andrea Caprara , Sergei Govorkov
IPC: H01S3/081 , H01S5/065 , H01S3/07 , H01S3/094 , H01S5/14 , H01S5/183 , H01S5/04 , H01S3/11 , H01S3/13
CPC classification number: H01S5/0657 , H01S3/07 , H01S3/0813 , H01S3/094026 , H01S3/1118 , H01S3/1121 , H01S3/1306 , H01S3/1307 , H01S5/041 , H01S5/14 , H01S5/183
Abstract: A laser includes an optically pumped semiconductor OPS gain-structure. The apparatus has a laser-resonator which includes a mode-locking device for causing the laser to deliver mode-locked pulses. The resonator has a total length selected such that the mode-locked pulses are delivered at a pulse repetition frequency less than 150 MHz. An optical arrangement within the resonator provides that radiation circulating in the resonator makes a plurality of incidences on the OPS gain-structure with a time less than the excited-state lifetime of the gain-structure between successive incidences.
Abstract translation: 激光器包括光泵浦半导体OPS增益结构。 该装置具有激光谐振器，该激光谐振器包括用于使激光器传递锁模脉冲的模式锁定装置。 共振器具有选择的总长度，使得锁模脉冲以小于150MHz的脉冲重复频率传送。 谐振器内的光学布置使得在谐振器中循环的辐射在OPS增益结构上产生多个发生时间，其时间小于连续发生之间的增益结构的激发态寿命。
-
Patent Agency Ranking
公开(公告)号：US09971159B2
公开(公告)日：2018-05-15
申请号：US15297564
申请日：2016-10-19
Applicant: Coherent, Inc.
Inventor： Michael Hertwig , Andrea Caprara , Michele Wayne Winz , Sergei Govorkov
CPC classification number: G02B27/0927 , G02B5/10 , G02B27/0983 , G02B27/283 , G02B27/30
Abstract: A mirror is used to form a beam of laser-radiation having a uniform intensity distribution from a beam of laser-radiation having a non-uniform intensity distribution. The mirror has a reflective surface that has a compound shape, which is two inclined surfaces joined by a rounded apex. The compound-mirror is achromatic and can form a uniform intensity distribution from a polychromatic beam of laser-radiation. The uniform intensity distribution may be an isotropic distribution or a flat-top distribution in a plane. The non-uniform intensity distribution may be a Gaussian distribution from a laser source.
-
公开(公告)号：US10983260B2
公开(公告)日：2021-04-20
申请号：US16172018
申请日：2018-10-26
Applicant: Coherent, Inc.
Inventor： Andrea Caprara
Abstract: A third-harmonic conversion arrangement includes a second-harmonic generating crystal and a third-harmonic generating crystal arranged in a polarization loop. The polarization loop, which includes a plurality of mirrors, a polarization-selective reflector, and a polarization rotator, causes plane-polarized fundamental-wavelength radiation being converted to make two passes through the crystals in orthogonally-opposed polarization orientations.
-
公开(公告)号：US10944233B2
公开(公告)日：2021-03-09
申请号：US16000090
申请日：2018-06-05
Applicant: Coherent, Inc.
Inventor： Qi-Ze Shu , Andrea Caprara
Abstract: A fiber-laser includes a gain-fiber in a laser-resonator. A polarizer is located in the laser-resonator at an end thereof, causing the output of the fiber-laser to be linearly polarized. A wavelength-selective element is also included in the laser-resonator for selecting an output wavelength of the fiber-laser from within a gain-bandwidth of the gain-fiber.
-
公开(公告)号：US09190798B2
公开(公告)日：2015-11-17
申请号：US14549310
申请日：2014-11-20
Applicant: Coherent, Inc.
Inventor： Andrea Caprara , Luis A. Spinelli , Arnaud Lepert
CPC classification number: H01S3/0092 , G02F1/39 , G02F2001/392
Abstract: 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.
Abstract translation: 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。
-
公开(公告)号：US08964802B1
公开(公告)日：2015-02-24
申请号：US14075953
申请日：2013-11-08
Applicant: Coherent, Inc.
Inventor： Andrea Caprara
CPC classification number: H01S3/109 , H01S3/08054 , H01S3/083 , H01S3/09415 , H01S3/1022 , H01S3/1312
Abstract: A ring laser-resonator generating plane-polarized fundamental-frequency radiation includes an optically nonlinear crystal configured for type-II second-harmonic generation of fundamental-frequency radiation. The resonator is configured such that fundamental-frequency radiation circulating either clockwise or counter-clockwise therein makes two passes through the optically nonlinear crystal per round-trip in the resonator in opposite directions, with polarization planes perpendicular to each other. This arrangement forces unidirectional circulation of radiation in the resonator during which second-harmonic radiation is not generated by the crystal.
Abstract translation: 产生平面偏振基频辐射的环形激光谐振器包括被配置用于基波频率辐射的二次二次谐波产生的光学非线性晶体。 谐振器被配置为使得顺时针或逆时针循环的基频辐射使谐振器中的每个往返中的光学非线性晶体沿相反方向两次通过，偏振平面彼此垂直。 这种布置迫使谐振器中的辐射的单向循环，其中二次谐波辐射不是由晶体产生的。
-
-
-
-
-
-
-
Search Results
8
records
(took 0.076 seconds)
