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公开(公告)号：US07474680B2
公开(公告)日：2009-01-06
申请号：US11686228
申请日：2007-03-14
CPC分类号： G06F3/0317 , H01S5/005 , H01S5/183
摘要： An apparatus and method for modifying the spread of a laser beam. The apparatus comprises a laser source operable to generate a laser beam having a flux that exceeds a predetermined value and an optical train operable to modify the beam such that the flux of the beam through a predetermined aperture does not exceed the predetermined value. The optical train may include a focusing lens, a diffractive focusing vortex lens, a beam splitting device, or a two-dimensional diffraction grating.
摘要翻译： 一种用于修改激光束扩散的装置和方法。 该装置包括可操作以产生具有超过预定值的通量的激光束的激光源和可操作以修改光束的光学列，使得通过预定孔径的光束通量不超过预定值。 光学系可以包括聚焦透镜，衍射聚焦涡流透镜，分束装置或二维衍射光栅。
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公开(公告)号：US07418016B2
公开(公告)日：2008-08-26
申请号：US10366755
申请日：2003-02-13
CPC分类号： G06F3/0317 , H01S5/005 , H01S5/183
摘要： An apparatus and method for modifying the spread of a laser beam. The apparatus comprises a laser source operable to generate a laser beam having a flux that exceeds a predetermined value and an optical train operable to modify the beam such that the flux of the beam through a predetermined aperture does not exceed the predetermined value. The optical train may include a focusing lens, a diffractive focusing vortex lens, a beam splitting device, or a diffraction grating.
摘要翻译： 一种用于修改激光束扩散的装置和方法。 该装置包括可操作以产生具有超过预定值的通量的激光束的激光源和可操作以修改光束的光学列，使得通过预定孔径的光束通量不超过预定值。 光学系可以包括聚焦透镜，衍射聚焦涡透镜，分束装置或衍射光栅。
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3.发明授权Method and apparatus to improve the dynamic range of optical devices using spatial apodization 失效使用空间变迹改善光学器件的动态范围的方法和装置公开(公告)号：US07280206B2
公开(公告)日：2007-10-09
申请号：US10939673
申请日：2004-09-13
CPC分类号： G02B27/58
摘要： Devices and methods for processing multi-wavelength light beams and the single-wavelength components of such light beams are disclosed. In accordance with some embodiments, a spectral filter includes collimating and focusing optical elements, an apodizing filter, a diffraction grating, and a spatial filter. The collimating optical element collimates an input light beam while the apodizing filter spatially filters this beam. In general, the apodizing filter includes a range of transmissivity that varies according to a distance from a predetermined location on the apodizing filter. The diffraction grating diffracts the input beam which is focused by the focusing optical element onto the spatial filter to generate a filtered output beam. Embodiments of the invention may be employed as spectral filters, optical spectrum analyzers, optical mutiplexers, optical de-multiplexers, and the like.
摘要翻译： 公开了用于处理多波长光束的装置和方法以及这种光束的单波长分量。 根据一些实施例，光谱滤波器包括准直和聚焦光学元件，变迹滤波器，衍射光栅和空间滤波器。 准直光学元件准直输入光束，而变迹滤光器对该光束进行空间滤光。 通常，变迹滤波器包括根据与变迹滤波器上的预定位置的距离而变化的透射率范围。 衍射光栅将由聚焦光学元件聚焦的输入光束衍射到空间滤光片上，以产生滤波后的输出光束。 本发明的实施例可以用作光谱滤波器，光谱分析仪，光学多路复用器，光学解复用器等。
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4.发明授权Apparatus and method for shifting the frequency of an optical signal by two-stage Raman scattering 失效通过两级拉曼散射来移位光信号的频率的装置和方法公开(公告)号：US07016102B2
公开(公告)日：2006-03-21
申请号：US10795034
申请日：2004-03-05
CPC分类号： H01S3/302 , H01S3/08086
摘要： An apparatus for optically shifting the frequency of an input signal beam includes a first Raman medium that receives an input signal beam, a first pump beam, and a first reference beam to responsively generate an intermediate signal beam comprising a Raman sideband of the first Raman medium. A second Raman medium is optically coupled in series with the first Raman medium. The second Raman medium receives the intermediate signal beam, a second pump beam, and a second reference beam to responsively generate an output signal beam comprising a Raman sideband of the second Raman medium. The generated output signal represents the input signal that is shifted in frequency by a frequency shift that corresponds to the frequency difference between the first and second reference beams.
摘要翻译： 一种用于光学偏移输入信号光束的频率的装置包括接收输入信号光束的第一拉曼介质，第一泵浦光束和第一参考光束，以响应地产生包括第一拉曼介质的拉曼边带的中间信号光束 。 第二拉曼介质与第一拉曼介质串联光耦合。 第二拉曼介质接收中间信号光束，第二泵浦光束和第二参考光束，以响应地产生包括第二拉曼介质的拉曼边带的输出信号光束。 所生成的输出信号表示频率偏移与第一和第二参考光束之间的频率差对应的频移的输入信号。
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5.发明授权Optical system and methods that compensate for changes in atmospheric conditions 失效补偿大气条件变化的光学系统和方法公开(公告)号：US06842286B2
公开(公告)日：2005-01-11
申请号：US10233940
申请日：2002-09-03
CPC分类号： G02B7/003 , G01N21/45 , G01N2021/4106 , G01N2201/1211 , G01N2201/1214 , G01N2201/1218 , G01S7/497 , Y10S359/90
摘要： Optical systems are provided. One such optical system includes an optical source that propagates a source beam of light. A diffracting component is optically coupled to the optical source and is operative to receive the source beam and produce a diffracted beam. A target is located to receive the diffracted beam. Additionally, a compensating system repositions at least one of the optical source, the diffracting component, and the target in response to a detected change in refractive index of a medium through which the diffracted beam propagates so that the diffracted beam continues to be received by the target. Methods and other systems also are provided.
摘要翻译： 提供光学系统。 一种这样的光学系统包括传播源光束的光源。 衍射组件光耦合到光源并且可操作地接收源光束并产生衍射光束。 目标位于接收衍射光束。 此外，补偿系统响应于所检测的衍射光束传播的介质的折射率变化，重新定位光源，衍射部件和靶中的至少一个，使得衍射光束继续被 目标。 还提供了方法和其它系统。
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公开(公告)号：US07276892B2
公开(公告)日：2007-10-02
申请号：US11119285
申请日：2005-04-29
CPC分类号： G01R29/0878 , G01R23/16
摘要： A spectrum analyzer includes an array of frequency-selective bulk acoustic wave (BAW) resonators each tuned to a predetermined different resonant frequency. The spectrum analyzer further includes a broadband BAW resonator that generates acoustic energy when connected to a signal source. An acoustic coupling transmits the acoustic energy generated by the broadband BAW resonator to the frequency-selective BAW resonators so that one of the frequency-selective BAW resonators will generate an electrical output signal if the acoustic energy transmitted from the broadband BAW resonator contains spectral components at its predetermined resonant frequency.
摘要翻译： 频谱分析仪包括频率选择性体声波（BAW）谐振器的阵列，每个谐振器被调谐到预定的不同谐振频率。 频谱分析仪还包括宽带BAW谐振器，当连接到信号源时产生声能。 声耦合将由宽带BAW谐振器产生的声能传输到频率选择性BAW谐振器，使得如果从宽带BAW谐振器传输的声能含有频谱分量，则频率选择性BAW谐振器之一将产生电输出信号 其预定谐振频率。
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公开(公告)号：US06731661B2
公开(公告)日：2004-05-04
申请号：US10262339
申请日：2002-10-01
IPC分类号： H01S310
CPC分类号： H01S5/141 , H01S3/1055 , H01S5/02248 , H01S5/143
摘要： Systems for tuning external-cavity lasers are provided. A representative system includes a motor and first and second opposing surfaces that are displaceable by the motor. The opposing surfaces operatively engage a support at a drive segment and rotate the drive segment about a pivot point on the support. Between the drive segment and the pivot point of the support, a reflective element is attached. An optical gain medium optically communicates with the reflective element. Other systems are also provided.
摘要翻译： 提供了调谐外腔激光器的系统。 代表性的系统包括马达以及由马达可移动的第一和第二相对表面。 相对的表面可操作地接合在驱动段处的支撑件并围绕支撑件上的枢转点旋转驱动段。 在驱动段和支撑件的枢转点之间，附接有反射元件。 光学增益介质与反射元件光学连通。 还提供其他系统。
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