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1. 发明授权

US08681421B1 Molecular gas-filled hollow core photonic crystal fiber laser at infra-red wavelengths 失效
标题翻译：分子充气中空光子晶体光纤激光器在红外波长
公开(公告)号：US08681421B1
公开(公告)日：2014-03-25
申请号：US12885309
申请日：2010-09-17
申请人： David M. Pepper , Hans Bruesselbach , Bryan Fong
发明人： David M. Pepper , Hans Bruesselbach , Bryan Fong
IPC分类号： H04B10/17 , H01S3/067 , H01S3/07 , H01S3/30
CPC分类号： H01S3/06708 , G02B6/02328 , H01S3/06716 , H01S3/06741 , H01S3/302
摘要： An IR laser source providing light in the IR spectrum, the laser source comprising a pump laser operating at a frequency equivalent to wavelength shorter than 2 μm and at a predetermined power, and an optic fiber coupled to the pump laser. The optic fiber has at least a section of a hollow core photonic crystal fiber, the at least a section of hollow core photonic crystal fiber being designed to have at least a passband in the IR spectrum and being filled with a molecular gas for triggering at least one Stoke's shift in the light entering the at least a section of hollow core photonic crystal fiber for the particular power of the pump laser, the at least one Stoke's shift be selected to cause the light entering the at least a section of hollow core photonic crystal fiber to shift in frequency into the passband in the IR spectrum of the hollow core photonic crystal fiber.
摘要翻译：一种在IR光谱中提供光的IR激光源，该激光源包括以等于2μm波长和预定功率的波长工作的泵激光器，以及耦合到泵激光器的光纤。所述光纤具有至少一部分空心光子晶体光纤，所述至少一部分空心光子晶体光纤被设计成在IR光谱中具有至少一个通带并且填充有用于至少触发的分子气体一个斯托克斯的光线进入至少一部分中空光子晶体光纤，用于泵浦激光器的特定功率，至少选择一个斯托克斯转换，使光线进入中空核心光子晶体的至少一部分光纤将频率移动到中空光子晶体光纤的IR光谱中的通带中。

2. 发明授权

US07505152B2 Optical metrology system 有权
标题翻译：光学计量系统
公开(公告)号：US07505152B2
公开(公告)日：2009-03-17
申请号：US11065623
申请日：2005-02-24
申请人： Cameron G. Massey , William Barvosa-Carter , Hans Bruesselbach , Robert Doty , Guillermo Herrera , Michael Nolan
发明人： Cameron G. Massey , William Barvosa-Carter , Hans Bruesselbach , Robert Doty , Guillermo Herrera , Michael Nolan
IPC分类号： G01B11/14
CPC分类号： G01B11/002 , G01S7/4811 , G01S7/4815 , G01S7/491 , G01S17/36 , G01S17/42 , G01S17/87 , G01S17/89
摘要： An optical metrology system having an optical metrology sensor assembly and a target is disclosed. The optical metrology sensor assembly transmits a light beam to the target and then uses the reflected beam from the target to determine the position of the target in three dimensions. The optical metrology sensor can comprise a light source, a ranging device, and a two-dimensional sensor. The optical metrology system is suitable for applications such as determining the position, orientation, and shape of a spacecraft antenna, so as to facilitate movement thereof to enhance operation of the antenna.
摘要翻译：公开了具有光学测量传感器组件和目标的光学测量系统。光学测量传感器组件将光束透射到目标，然后使用来自目标的反射光束来确定目标在三维中的位置。光学测量传感器可以包括光源，测距装置和二维传感器。光学测量系统适用于确定航天器天线的位置，方向和形状等应用，以便于其运动，从而增强天线的操作。

3. 发明申请

US20080019403A1 Method and apparatus for coherently combining multiple laser oscillators 失效
标题翻译：用于相干组合多个激光振荡器的方法和装置
公开(公告)号：US20080019403A1
公开(公告)日：2008-01-24
申请号：US11880581
申请日：2007-07-23
申请人： Jeffrey Rogers , Monica Minden , Hans Bruesselbach , Cris Jones
发明人： Jeffrey Rogers , Monica Minden , Hans Bruesselbach , Cris Jones
IPC分类号： G02B6/42
CPC分类号： G02B6/04 , G02B6/2808 , H01S3/067 , H01S3/0675 , H01S3/094042 , H01S3/10092 , H01S3/2383
摘要： A laser apparatus having multiple laser devices coupled together. The laser devices comprise optical fibers with laser active regions. Each of the fibers has a reflector disposed at one end and is connected to a combiner on the other end. A laser pump device for each fiber provides pump energy to the laser active regions. Light propagating in the fibers interacts so as to form inphase states. The array of fibers may be coupled either in pairs or altogether between the reflector and the laser active region.
摘要翻译：具有耦合在一起的多个激光装置的激光装置。激光器件包括具有激光活性区域的光纤。每个光纤具有设置在一端的反射器，并且在另一端连接到组合器。用于每个光纤的激光泵装置为激光器活动区域提供泵浦能量。在纤维中传播的光相互作用以形成同相状态。光纤阵列可以在反射器和激光有源区域之间成对地或完全耦合。

4. 发明授权

US5761233A Monolithic pump cavity and method 失效
标题翻译：整体泵腔和方法
公开(公告)号：US5761233A
公开(公告)日：1998-06-02
申请号：US630395
申请日：1996-04-10
申请人： Hans Bruesselbach , David S. Sumida
发明人： Hans Bruesselbach , David S. Sumida
IPC分类号： H01S3/094 , H01S3/042 , H01S3/06 , H01S3/0941 , H01S3/16 , H01S3/93
CPC分类号： H01S3/0941 , H01S3/0405 , H01S3/042 , H01S3/0602 , H01S3/0606 , H01S3/061 , H01S3/0612 , H01S3/094084 , H01S3/1618 , H01S3/1643
摘要： A high-Q pump cavity is formed from undoped crystal pieces that are diffusion bonded to a doped core of the same crystal host material. The resulting monolithic pump cavity has 2 opposing convex-curved sides which have a highly-reflective coating on their outer surfaces, except in narrow slit-shaped areas on each curved side through which laser-diode-supplied pump light enters the cavity. The curvature of the two curved sides is such that nearly all the pump light rays that pass through the slit-shaped areas are focussed by the curvature onto the doped core, and rays that enter the cavity are redirected through the doped core many times, resulting in efficient, uniform absorption. The cavity has two opposing flat sides that interface with metal heat sink blocks to facilitate the removal of internally-generated heat. Thermally induced astigmatic lensing caused by this heat is countered by cavity design in which the core shape and the dimensions of the cavity minimize this astigmatism. Embedding a doped crystal core within a crystal of the same material allows the lasing mode size to be larger than the core, allowing the entire doped core to be accessible for efficient extraction, helps reduce parasitic oscillation, and provides highly effective cooling. Furthermore, laser diode light couples directly into the doped core, with close to 100% transport efficiency.
摘要翻译：高Q泵浦腔由扩散接合到相同晶体主体材料的掺杂核心的未掺杂晶体片形成。所得到的整体泵腔具有两个相对的凸曲面，在其外表面上具有高反射涂层，除了在激光二极管供应的泵浦光进入空腔的每个弯曲侧上的狭窄狭缝形区域之外。两个弯曲面的曲率使得通过狭缝状区域的几乎所有的泵浦光线被曲率聚焦到掺杂的芯上，并且进入空腔的射线被重新导向通过掺杂核心多次，导致在高效，均匀的吸收。空腔具有与金属散热块相接合的两个相对的平坦侧面，以便于去除内部产生的热量。由这种热导致的热诱导的散光透镜由空腔设计抵消，其中芯的形状和腔的尺寸使得这种散光最小化。将掺杂的晶体核嵌入相同材料的晶体内可以使激光模式尺寸大于芯，使整个掺杂芯可以方便地进行高效提取，有助于减少寄生振荡，并提供高效冷却。此外，激光二极管灯直接耦合到掺杂的芯中，具有接近100％的传输效率。

5. 发明申请

US20060187470A1 Optical metrology system 有权
公开(公告)号：US20060187470A1
公开(公告)日：2006-08-24
申请号：US11065623
申请日：2005-02-24
申请人： Cameron Massey , William Barvosa-Carter , Hans Bruesselbach , Robert Doty , Guillermo Herrera , Michael Nolan
发明人： Cameron Massey , William Barvosa-Carter , Hans Bruesselbach , Robert Doty , Guillermo Herrera , Michael Nolan
IPC分类号： G01C3/08 , G01B11/14 , G02B23/00
CPC分类号： G01B11/002 , G01S7/4811 , G01S7/4815 , G01S7/491 , G01S17/36 , G01S17/42 , G01S17/87 , G01S17/89
摘要： An optical metrology system having an optical metrology sensor assembly and a target is disclosed. The optical metrology sensor assembly transmits a light beam to the target and then uses the reflected beam from the target to determine the position of the target in three dimensions. The optical metrology sensor can comprise a light source, a ranging device, and a two-dimensional sensor. The optical metrology system is suitable for applications such as determining the position, orientation, and shape of a spacecraft antenna, so as to facilitate movement thereof to enhance operation of the antenna.

6. 发明授权

US5774619A Precision deformation mechanism and method 失效
标题翻译：精密变形机理与方法
公开(公告)号：US5774619A
公开(公告)日：1998-06-30
申请号：US647541
申请日：1996-05-15
申请人： Hans Bruesselbach
发明人： Hans Bruesselbach
IPC分类号： G02B6/36 , G02B6/34
CPC分类号： G02B6/022
摘要： A simple, low-cost deformation mechanism and method produces submicrometer increments of motion, to precisely stretch and compress fibers containing optical gratings in order to achieve a desired length and period. Such a "tunable" fiber can be used to, for example, produce an optical filter or to "match" two fiber lasers, thus enabling their use in a coherent detection system. Two beams, parallel to and opposing each other, are joined at two places. A screw is positioned between the beams such that a force is exerted on both beams simultaneously when the screw is rotated, deforming both beams. Motion reduction is provided by sharing the screw's movement between the two beams, and is further enhanced by making one beam thicker than the other. Two fibers are secured into grooves provided on one of the beams. By rotating the screw to increase or decrease the deformation, the fibers and their respective gratings are stretched or compressed. Because the grooves are at different distances from the point where force is applied, the two fibers are subjected to different amounts of deformation as the screw is turned. When the fibers are used as lasers, the difference in the frequencies of the two lasers can be adjusted with the mechanism, and reduced to within the bandwidth of a photodetector. Once "matched," the fiber lasers and the mechanism can be used in a coherent detection system.
摘要翻译：一种简单的，低成本的变形机构和方法产生亚微米的运动增量，以精确地拉伸和压缩含有光栅的纤维，以达到期望的长度和周期。这样的“可调谐”光纤可以用于例如产生光学滤波器或“匹配”两个光纤激光器，从而使它们可用于相干检测系统。平行于彼此并且彼此相对的两个梁在两个地方连接。螺杆位于梁之间，使得当螺钉旋转时同时施加在两个梁上的力，使两个梁变形。通过共享螺钉在两个梁之间的运动来提供运动减少，并且通过使一个梁比另一个更厚而进一步增强。两根纤维固定在设置在其中一根梁上的槽中。通过旋转螺丝来增加或减少变形，纤维及其各自的光栅被拉伸或压缩。因为凹槽与施加力的点不同的距离，所以当螺钉转动时，两根纤维经受不同量的变形。当光纤被用作激光器时，两个激光器的频率差可以用机构调节，并且减小到光电检测器的带宽内。一旦“匹配”，光纤激光器和机构可用于相干检测系统。

7. 发明授权

US5790722A High power optical fiber amplifier/laser system 失效
标题翻译：大功率光纤放大器/激光系统
公开(公告)号：US5790722A
公开(公告)日：1998-08-04
申请号：US632861
申请日：1996-04-16
申请人： Monica L. Minden , Hans Bruesselbach
发明人： Monica L. Minden , Hans Bruesselbach
IPC分类号： H01S3/10 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/16 , G02B6/26
CPC分类号： H01S3/094003 , H01S3/0675 , H01S3/1608
摘要： A high power Er-doped fiber amplifier/laser system includes a cladding-pumped fiber grating laser that emits an output beam at a wavelength that falls within an absorption band of erbium. The fiber grating laser output beam is used as the pumping source for an Er-doped fiber amplifier or laser. Because the output from the fiber grating laser falls within one of the erbium absorption bands, the amplifier or laser may be directly pumped with the fiber grating laser's output without the need for co-doping. In a preferred embodiment, the fiber grating laser is a 980 nm ytterbium-doped fiber grating laser that is cladding-pumped with a multi-transverse mode diode laser array. The Yb-doped fiber grating laser and the Er-doped fiber amplifier/laser are preferably spliced directly to an input and output arm of a WDM fiber coupler, respectively. This allows the 980 nm output from the Yb-doped fiber grating laser to be coupled to the Er-doped fiber amplifier/laser through an all-fiber path, without having to propagate through air.
摘要翻译：高功率铒掺杂光纤放大器/激光器系统包括一个包层泵浦光纤光栅激光器，其发射在铒吸收带内的波长处的输出光束。光纤光栅激光输出光束用作掺铒光纤放大器或激光器的泵浦源。由于光纤光栅激光器的输出落在铒吸收带之一内，放大器或激光器可以直接用光纤光栅激光器的输出泵浦而不需要共掺杂。在优选实施例中，光纤光栅激光器是用多横模式二极管激光器阵列包层泵浦的980nm镱掺杂光纤光栅激光器。 Yb掺杂光纤光栅激光器和掺铒光纤放大器/激光器最好分别直接连接到WDM光纤耦合器的输入和输出臂。这允许来自掺杂Yb的光纤光栅激光器的980nm输出通过全光纤路径耦合到掺铒光纤放大器/激光器，而不必通过空气传播。

8. 发明授权

US5604829A Optical waveguide with diffraction grating and method of forming the same 失效
$Optical waveguide with diffraction grating and method of forming the same$
标题翻译：具有衍射光栅的光波导及其形成方法
公开(公告)号：US5604829A
公开(公告)日：1997-02-18
申请号：US423070
申请日：1995-04-17
申请人： Hans Bruesselbach
发明人： Hans Bruesselbach
IPC分类号： G02B6/34
CPC分类号： G02B6/02138
摘要： A method for forming an index grating in an optical waveguide, such as an optical fiber, with precise control over the grating's period, cross-sectional shape and length. A single writing beam is passed through an optical grating mask, such as a phase mask. A photosensitive waveguide is spaced from the optical grating by a distance that corresponds to an integer fraction of the Talbot self-imaging distance, so that the optical grating (or a desired transformation of it) is imaged in the waveguide core. The grating image has substantially the same cross-sectional shape, period and length as the portion of the optical grating that is illuminated by the writing beam. Thus, an index grating that substantially replicates the cross-sectional shape, period and length of the optical grating mask, which preferably has a substantially square-wave shaped cross-section, is written in the waveguide core. The substantially square-wave shaped cross-section results in higher reflectivity per unit length than prior waveguide gratings with sinusoidal cross-sections. As a result, a high order waveguide index grating may be formed over a waveguide length that is shorter than would previously be required. Alternatively, a low order grating may be formed that has higher reflectivity than a low order sinusoidal grating.
摘要翻译：在诸如光纤的光波导中形成索引光栅的方法，其具有对光栅周期，横截面形状和长度的精确控制。单个写入光束通过诸如相位掩模的光栅掩模。光敏波导与光栅隔开一定距离，该距离对应于Talbot自成像距离的整数分数，使得光栅（或其所需的变换）在波导芯中成像。光栅图像具有与由写入光束照射的光栅的部分基本相同的横截面形状，周期和长度。因此，基本上复制光栅掩模的横截面形状，周期和长度的折射率光栅，其优选地具有大致方波形的横截面，被写入波导芯中。与具有正弦横截面的以前的波导光栅相比，基本上方波形的横截面导致每单位长度的反射率更高。结果，可以在比以前要求的波导长度短的波导长度上形成高阶波导折射率光栅。或者，可以形成具有比低阶正弦光栅更高的反射率的低阶光栅。

9. 发明授权

US07821704B1 Compact, tunable, efficient IR laser and IR guiding silica fibers 有权
标题翻译：紧凑，可调谐，高效的红外激光和IR引导硅胶
公开(公告)号：US07821704B1
公开(公告)日：2010-10-26
申请号：US11805276
申请日：2007-05-21
申请人： David M. Pepper , Hans Bruesselbach , Bryan Fong
发明人： David M. Pepper , Hans Bruesselbach , Bryan Fong
IPC分类号： H04B10/17 , G02B6/032 , G02B6/036
CPC分类号： H01S3/06708 , G02B6/02328 , H01S3/06716 , H01S3/06741 , H01S3/302
摘要： An IR laser source providing light in the IR spectrum, the laser source comprising a pump laser operating at a frequency equivalent to wavelength shorter than 2 μm and at a predetermined power, and an optic fiber coupled to the pump laser. The optic fiber has at least a section of a hollow core photonic crystal fiber, the at least a section of hollow core photonic crystal fiber being designed to have at least a passband in the IR spectrum and being filled with a molecular gas for triggering at least one Stoke's shift in the light entering the at least a section of hollow core photonic crystal fiber for the particular power of the pump laser, the at least one Stoke's shift be selected to cause the light entering the at least a section of hollow core photonic crystal fiber to shift in frequency into the passband in the IR spectrum of the hollow core photonic crystal fiber.
摘要翻译：一种在IR光谱中提供光的IR激光源，该激光源包括以等于2μm波长和预定功率的波长工作的泵激光器，以及耦合到泵激光器的光纤。所述光纤具有至少一部分空心光子晶体光纤，所述至少一部分空心光子晶体光纤被设计成在IR光谱中具有至少一个通带并且填充有用于至少触发的分子气体一个斯托克斯的光线进入至少一部分中空光子晶体光纤，用于泵浦激光器的特定功率，至少选择一个斯托克斯转换，使光线进入中空核心光子晶体的至少一部分光纤将频率移动到中空光子晶体光纤的IR光谱中的通带中。

10. 发明授权

US5647038A Narrow bandwidth Bragg grating reflector for use in an optical waveguide 失效
标题翻译：用于光波导的窄带宽布拉格光栅反射器
公开(公告)号：US5647038A
公开(公告)日：1997-07-08
申请号：US521481
申请日：1995-08-30
申请人： Monica L. Minden , Hans Bruesselbach
发明人： Monica L. Minden , Hans Bruesselbach
IPC分类号： G02B6/12 , G02B6/34 , H01S3/067
CPC分类号： G02B6/29356 , H01S3/0675 , G02B2006/12107 , G02B6/02076
摘要： A narrow bandwidth Bragg grating reflector comprises at least two Bragg reflection gratings positioned to form a Fabry-Perot etalon, with an optical gain medium between them. The etalon formed by the Bragg gratings has a reflection frequency spectrum that exhibits a plurality of primary peaks and nulls. The distance between the Bragg gratings is adjusted so that a predetermined design frequency falls within the bandwidth of one of the nulls, and the optical gain medium is chosen to provide optical gain for light at the design frequency. This establishes a secondary reflection peak in the Bragg grating etalon, centered on the design frequency, with a bandwidth that is narrower than those of the individual Bragg gratings and primary reflection peaks. In a preferred embodiment, the Bragg gratings are formed in the core of an optical fiber that is doped to provide optical gain at the predetermined optical frequency. A single-mode fiber laser is also provided in which one or more of its cavity reflectors is implemented with the present narrow bandwidth Bragg reflector.
摘要翻译：窄带宽布拉格光栅反射器包括至少两个布拉格反射光栅，其布置成形成法布里 - 珀罗标准具，在它们之间具有光学增益介质。由布拉格光栅形成的标准具具有表现出多个主峰和零点的反射频谱。调节布拉格光栅之间的距离，使得预定的设计频率落在空值之一的带宽内，并且选择光增益介质以在设计频率处为光提供光增益。这在布拉格光栅标准具中以设计频率为中心建立了二次反射峰值，其带宽比单个布拉格光栅和主反射峰值窄。在优选实施例中，布拉格光栅形成在光纤的芯中，该光纤被掺杂以在预定的光学频率处提供光学增益。还提供了单模光纤激光器，其中一个或多个其腔反射器用本窄带布拉格反射器实现。

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