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公开(公告)号:US20130121360A1
公开(公告)日:2013-05-16
申请号:US13465828
申请日:2012-05-07
申请人: Natalia Trela , Howard John Baker , Roy McBride
发明人: Natalia Trela , Howard John Baker , Roy McBride
IPC分类号: H01S5/40
CPC分类号: H01S5/4025 , H01S5/14 , H01S5/141 , H01S5/143 , H01S5/405 , H01S5/4056 , H01S5/4062 , H01S5/4087
摘要: A multi-wavelength laser array of a plurality of emitters in a diode bar or stack where each beam is deflected by a different angle to be incident upon a uniform volume holographic grating with a portion of the beam being deflected as a feedback portion while a further portion provides a wavelength tuned output unique to each emitter. The arrangement of a uniform volume holographic grating with deflectors such as phaseplates eliminates the need to use expensive wavelength chirped gratings.
摘要翻译: 在二极管条或堆叠中的多个发射器的多波长激光器阵列,其中每个光束以不同的角度偏转以入射到均匀体积全息光栅上,其中一部分光束被偏转为反馈部分,而另一个 部分为每个发射器提供独特的波长调谐输出。 均匀体积全息光栅与偏光片(如偏光片)的布置消除了使用昂贵的波长啁啾光栅的需要。
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公开(公告)号:US08817832B2
公开(公告)日:2014-08-26
申请号:US13465828
申请日:2012-05-07
申请人: Natalia Trela , Howard John Baker , Roy McBride
发明人: Natalia Trela , Howard John Baker , Roy McBride
CPC分类号: H01S5/4025 , H01S5/14 , H01S5/141 , H01S5/143 , H01S5/405 , H01S5/4056 , H01S5/4062 , H01S5/4087
摘要: A multi-wavelength laser array of a plurality of emitters in a diode bar or stack where each beam is deflected by a different angle to be incident upon a uniform volume holographic grating with a portion of the beam being deflected as a feedback portion while a further portion provides a wavelength tuned output unique to each emitter. The arrangement of a uniform volume holographic grating with deflectors such as phaseplates eliminates the need to use expensive wavelength chirped gratings.
摘要翻译: 在二极管条或堆叠中的多个发射器的多波长激光器阵列,其中每个光束以不同的角度偏转以入射到均匀体积全息光栅上,其中一部分光束被偏转为反馈部分,而另一个 部分为每个发射器提供独特的波长调谐输出。 均匀体积全息光栅与偏光片(如偏光片)的布置消除了使用昂贵的波长啁啾光栅的需要。
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公开(公告)号:US20120298650A1
公开(公告)日:2012-11-29
申请号:US13301927
申请日:2011-11-22
CPC分类号: B23K26/03 , B23K26/0622 , B23K26/067 , B23K26/082 , G02F1/113 , H01S3/005 , H01S3/0085
摘要: A method and apparatus of generating a laser pulse of a desired energy and micro-machining a substrate using the laser pulse. A beam of light is provided from a laser source. The beam is directed via a modulator to produce an output laser pulse with a portion of the laser pulse being used to determine the energy of the laser pulse. The modulator is controlled so as to switch off the output laser pulse when the determined energy of the output laser pulse reaches a threshold value. The output laser pulse is steered to a substrate for micro-machining.
摘要翻译: 一种产生所需能量的激光脉冲并使用激光脉冲对基板进行微加工的方法和装置。 从激光源提供光束。 光束通过调制器被引导以产生输出激光脉冲,其中激光脉冲的一部分用于确定激光脉冲的能量。 当输出激光脉冲的确定的能量达到阈值时,调制器被控制为关闭输出激光脉冲。 将输出激光脉冲转向基板进行微加工。
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公开(公告)号:US09089927B2
公开(公告)日:2015-07-28
申请号:US13301927
申请日:2011-11-22
CPC分类号: B23K26/03 , B23K26/0622 , B23K26/067 , B23K26/082 , G02F1/113 , H01S3/005 , H01S3/0085
摘要: A method and apparatus of generating a laser pulse of a desired energy and micro-machining a substrate using the laser pulse. A beam of light is provided from a laser source. The beam is directed via a modulator to produce an output laser pulse with a portion of the laser pulse being used to determine the energy of the laser pulse. The modulator is controlled so as to switch off the output laser pulse when the determined energy of the output laser pulse reaches a threshold value. The output laser pulse is steered to a substrate for micro-machining.
摘要翻译: 一种产生所需能量的激光脉冲并使用激光脉冲对基板进行微加工的方法和装置。 从激光源提供光束。 光束通过调制器被引导以产生输出激光脉冲,其中激光脉冲的一部分用于确定激光脉冲的能量。 当输出激光脉冲的确定的能量达到阈值时,调制器被控制为关闭输出激光脉冲。 将输出激光脉冲转向基板进行微加工。
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公开(公告)号:US20120140334A1
公开(公告)日:2012-06-07
申请号:US13291974
申请日:2011-11-08
CPC分类号: G02B19/0057 , B29D11/00298 , B29D11/00951 , G02B19/0014 , G02B19/009 , G02B27/0961 , G02B27/0966 , G02B27/30 , H01S5/005 , H01S5/405
摘要: A micro-optical element for use with an edge-emitting laser diode bar stack, the element comprising a plurality of spaced apart fast-axis collimators formed as a monolithic array, wherein the spacing between the collimators in the fast-axis varies across the micro-optic element. A method of manufacturing a micro-optical element for use with a laser diode bar stack, using a wavelength stabilized CO2 laser is also described.
摘要翻译: 一种与边缘发射激光二极管棒堆叠一起使用的微光学元件,该元件包括形成为单片阵列的多个间隔开的快轴准直器,其中快轴中的准直器之间的间隔在微型 光元素。 还描述了使用波长稳定的CO2激光器制造与激光二极管棒堆叠一起使用的微光学元件的方法。
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公开(公告)号:US5721615A
公开(公告)日:1998-02-24
申请号:US591475
申请日:1996-01-25
CPC分类号: G01B9/02072 , G01B9/02023 , G01B9/0209 , G01D5/35303 , G01K5/52 , G01B2290/70
摘要: A sensor system in an interferometric arrangement has a sensor arm and a reference arm. The reference arm is in a stable environment and the sensor arm is arranged to be subject to variations in strain and/or temperature. Radiation from a broadband source propagates through the arrangement and a broadband interferogram is generated as an air gap is scanned. The interferogram is recorded on an oscilloscope and analyzed using signal processing software on a computer. From the analysis the changes in group delay and optical dispersion of the light in the sensor arm due to strain and temperature changes is measured, and values for the strain and/or temperature changes calculated. A narrowband light source may be used for accurate calibration of path length differences during scanning. The strain and temperature on the sensor arm may be calibrated or tested using clamps and a thermal enclosure. The system may also be configured in a tandem interferometry arrangement including a sensing interferometer and reference interferometer.
摘要翻译: PCT No.PCT / GB94 / 01388 Sec。 371日期:1996年1月25日 102(e)日期1996年1月25日PCT Filed 1994年6月27日PCT Pub。 公开号WO95 / 02802 日期1995年1月26日干涉仪中的传感器系统具有传感器臂和参考臂。 参考臂处于稳定的环境中,并且传感器臂被布置成经受应变和/或温度的变化。 宽带源的辐射通过该布置传播,并且当扫描气隙时产生宽带干涉图。 干涉图记录在示波器上,并使用计算机上的信号处理软件进行分析。 从分析中,测量由于应变和温度变化导致的传感器臂中的光延迟和光学色散的变化,并且计算应变和/或温度变化的值。 可以使用窄带光源来精确校准扫描期间的路径长度差异。 传感器臂上的应变和温度可以使用夹具和热外壳进行校准或测试。 该系统还可以被配置成包括感测干涉仪和参考干涉仪的串联干涉测量装置。
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公开(公告)号:US08570657B2
公开(公告)日:2013-10-29
申请号:US13291974
申请日:2011-11-08
CPC分类号: G02B19/0057 , B29D11/00298 , B29D11/00951 , G02B19/0014 , G02B19/009 , G02B27/0961 , G02B27/0966 , G02B27/30 , H01S5/005 , H01S5/405
摘要: A micro-optical element for use with an edge-emitting laser diode bar stack, the element comprising a plurality of spaced apart fast-axis collimators formed as a monolithic array, wherein the spacing between the collimators in the fast-axis varies across the micro-optic element. A method of manufacturing a micro-optical element for use with a laser diode bar stack, using a wavelength stabilized CO2 laser is also described.
摘要翻译: 一种与边缘发射激光二极管棒堆叠一起使用的微光学元件,该元件包括形成为单片阵列的多个间隔开的快轴准直器,其中快轴中的准直器之间的间隔在微型 光元素。 还描述了使用波长稳定的CO2激光器制造与激光二极管棒堆叠一起使用的微光学元件的方法。
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公开(公告)号:US08253087B2
公开(公告)日:2012-08-28
申请号:US12439092
申请日:2007-08-29
CPC分类号: G01J9/00 , G01J1/4257
摘要: A system for measuring the wavefront characteristics of a powerful laser close to an emitting or transmitting surface of the laser. The system includes a beam sampler that has a sampling aperture for sampling radiation from a sampled area along the emitting or transmitting surface. The beam sampler includes a reflector for directing un-sampled radiation onto an absorber, which absorbs un-sampled radiation. Radiation sampled by the beam sampler is sensed using a sensor.
摘要翻译: 一种用于测量靠近激光发射或发射表面的强大的激光器的波前特征的系统。 该系统包括具有采样孔径的光束取样器,用于沿着发射或发射表面对来自采样区域的辐射进行采样。 光束采样器包括用于将未采样的辐射引导到吸收器的反射器,吸收器吸收未采样的辐射。 使用传感器检测由采样器采样的辐射。
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公开(公告)号:US06621956B2
公开(公告)日:2003-09-16
申请号:US10053900
申请日:2002-01-24
申请人: Alan H Greenaway , James G Burnett , Andrew R Harvey , Paul M Blanchard , Peter A Lloyd , Roy McBride , Philip St John Russell
发明人: Alan H Greenaway , James G Burnett , Andrew R Harvey , Paul M Blanchard , Peter A Lloyd , Roy McBride , Philip St John Russell
IPC分类号: G02B634
CPC分类号: G01M11/083 , G01D5/35306 , G01D5/3538
摘要: An optical fibre bend sensor (10) measures the degree and orientation of bending present in a sensor length (30) portion of a fibre assembly (26). Within a multicored fibre (30, 32,34), cores (62, 66) are grouped in non-coplanar pairs. An arrangement of optical elements (28, 36, 38) define within each core pair (62, 66) two optical paths (122, 124) which differ along the sensor length (30): one core (62) of a pair (62, 66) is included in the first path (122), and the other core (66) in the second path (124). A general bending of the sensor region (30) will lengthen one core (62, 66) with respect to the other. Interrogation of this length differential by means of interferometry generates interferograms from which the degree of bending in the plane of the core pair is extracted. Bend orientation can be deduced from data extracted from multiple core pairs.
摘要翻译: 光纤弯曲传感器(10)测量存在于光纤组件(26)的传感器长度(30)部分中的弯曲的程度和取向。 在多芯光纤(30,32,34)内,核心(62,66)被分组成非共面对。 光学元件(28,36,38)的布置在每个芯对(62,66)内限定沿着传感器长度(30)不同的两个光路(122,124):一对(62)的一个芯(62) ,66)包括在第一路径(122)中,另一个核心(66)包括在第二路径(124)中。 传感器区域(30)的一般弯曲将相对于另一个将一个芯(62,66)延长。 通过干涉测量对这种长度差分的询问产生干涉图,从中提取出核心对的平面中的弯曲程度。 弯曲取向可以从从多个核心对提取的数据中推导出来。
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公开(公告)号:US06389187B1
公开(公告)日:2002-05-14
申请号:US09446325
申请日:2000-04-21
申请人: Alan H Greenaway , James G Burnett , Andrew R Harvey , Peter A Lloyd , Roy McBride , Philip St John Russell , Paul M Blanchard
发明人: Alan H Greenaway , James G Burnett , Andrew R Harvey , Peter A Lloyd , Roy McBride , Philip St John Russell , Paul M Blanchard
IPC分类号: G02B600
CPC分类号: G01M11/083 , G01D5/35306 , G01D5/3538
摘要: An optical fiber bend sensor (10) measures the degree and orientation of bending present in a sensor length (30) portion of a fiber assembly (26). Within a multicored fiber (30, 32, 34), cores (62, 66) are grouped in non-coplanar pairs. An arrangement of optical elements (28, 36, 38) define within each core pair (62, 66) two optical paths (122, 124) which differ along the sensor length (30): one core (62) of a pair (62, 66) is included in the first path (122), and the other core (66) in the second path (124). A general bending of the sensor region (30) will lengthen one core (62, 66) with respect to the other. Interrogation of this length differential by means of interferometry generates interferograms from which the degree of bending in the plane of the core pair is extracted. Bend orientation can be deduced from data extracted from multiple core pairs.
摘要翻译: 光纤弯曲传感器(10)测量存在于光纤组件(26)的传感器长度(30)部分中的弯曲的程度和取向。 在多芯光纤(30,32,34)内,核心(62,66)被分组成非共面对。 光学元件(28,36,38)的布置在每个芯对(62,66)内限定沿着传感器长度(30)不同的两个光路(122,124):一对芯(62) ,66)包括在第一路径(122)中,另一个核心(66)包括在第二路径(124)中。 传感器区域(30)的一般弯曲将相对于另一个将一个芯(62,66)延长。 通过干涉测量对这种长度差分的询问产生干涉图,从中提取出核心对的平面中的弯曲程度。 弯曲取向可以从从多个核心对提取的数据中推导出来。
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