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1. 发明授权

US06583925B1 Efficient pumping for high power rare-earth doped fiber amplifiers 有权
标题翻译：高功率稀土掺杂光纤放大器的高效泵浦
公开(公告)号：US06583925B1
公开(公告)日：2003-06-24
申请号：US09471978
申请日：1999-12-23
申请人： Jean-Marc Pierre Delavaux , Sandra Greenberg Kosinski , Aydin Yeniay
发明人： Jean-Marc Pierre Delavaux , Sandra Greenberg Kosinski , Aydin Yeniay
IPC分类号： H04B1012
CPC分类号： H01S3/06754 , H01S3/06758 , H01S3/094011 , H01S3/094023
摘要： A fiber amplifier, such as a rare-earth doped fiber amplifier, includes at least two separate sections of (doped) fiber, where residual pump power remaining in one stage (for example, the output stage) of the amplifier is coupled into, and re-used by, the remaining section of (doped) fiber. In particular, a second, longer section of fiber is directly pumped by an externally supplied pump signal and a first, shorter section of doped fiber uses residual pump power from the second section as a pump signal input.
摘要翻译：诸如稀土掺杂光纤放大器的光纤放大器包括至少两个（掺杂）光纤的单独部分，其中残留在放大器的一个级（例如，输出级）中的剩余泵浦功率被耦合到（掺杂）光纤的剩余部分重新使用。特别地，第二较长的光纤部分通过外部提供的泵浦信号直接泵浦，并且第一较短部分的掺杂光纤使用来自第二部分的剩余泵浦功率作为泵浦信号输入。

2. 发明授权

US06597853B2 Device packaging and method 有权
标题翻译：设备包装和方法
公开(公告)号：US06597853B2
公开(公告)日：2003-07-22
申请号：US09746922
申请日：2000-12-21
申请人： Steven Cabot , David Stephen DeVincentis , Arturo Hale , Sandra Greenberg Kosinski , Salvatore J Messana
发明人： Steven Cabot , David Stephen DeVincentis , Arturo Hale , Sandra Greenberg Kosinski , Salvatore J Messana
IPC分类号： G02B600
CPC分类号： G02B6/2558 , G02B6/36 , G02B6/3636
摘要： A packaging system includes a medium which transports energy in a first form away from a radiation point in a device to where the energy can be converted to a second form without damaging the device or effecting other devices. In certain embodiments, the medium can inhibit the propagation of energy in the second form. For example, in an optical coupling device, the medium includes a substrate adjacent to the radiation point which transports light energy away from the radiation point to a housing which converts the light energy into thermal energy away from the radiation point. In accordance with another aspect, the packaging system suspends at least a portion of the device, for example, to protect the device against a third form of energy. For example, in the optical coupling device, the medium includes an air gap which separates the radiation point from the substrate to suspend at least a portion of the device. The air gap enables the device to be protected against the mechanical energy resulting from the expansion or contraction of the packaged device due to changing temperature. In certain embodiments, the housing is provided with at least one opening in which a pliable seal is inserted which can absorb the mechanical energy resulting from the expansion or contraction of the packaged device due to changing temperature.
摘要翻译：包装系统包括将能量转换成第二形式的第一形式的能量远离设备中的辐射点的能力传递到不损坏设备或影响其他设备的介质。在某些实施方案中，介质可以抑制第二形式的能量传播。例如，在光耦合器件中，介质包括与辐射点相邻的衬底，其将光能从辐射点传输到壳体，该壳体将光能转换成远离辐射点的热能。根据另一方面，例如，包装系统暂停装置的至少一部分，以保护装置抵抗第三形式的能量。例如，在光耦合装置中，介质包括一个气隙，该气隙将辐射点从衬底分离以悬挂该装置的至少一部分。空气间隙使得能够防止装置由于温度变化而免受由于封装装置的膨胀或收缩而产生的机械能。在某些实施例中，壳体设置有至少一个开口，其中插入柔性密封件，其可以吸收由于温度变化而导致的封装装置的膨胀或收缩所产生的机械能。

3. 发明授权

US06434172B1 Article comprising a fiber raman device 有权
标题翻译：文章包括纤维拉曼装置
公开(公告)号：US06434172B1
公开(公告)日：2002-08-13
申请号：US09369393
申请日：1999-08-06
申请人： David John DiGiovanni , Daryl Inniss , Ralph Stephen Jameson , Sandra Greenberg Kosinski
发明人： David John DiGiovanni , Daryl Inniss , Ralph Stephen Jameson , Sandra Greenberg Kosinski
IPC分类号： H01S330
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094003 , H01S3/094011 , H01S3/094042 , H01S3/094046 , H01S3/094096 , H01S3/30
摘要： The disclosed fiber Raman device comprises means for coupling pump radiation of a first wavelength &lgr;1 and a second wavelength &lgr;2 into a length of silica-based fiber, with &lgr;1 being different from &lgr;2, and with both of &lgr;1 and &lgr;2 being less than an output radiation &lgr;0 of the fiber Raman device. The Raman device further comprises at least a first and a second wavelength-selective element disposed to provide one or more optical cavities for Raman shifting of light in the fiber. At least one of the optical cavities is selected such that at least one of &lgr;1 and &lgr;2 is off resonance. Exemplarily, the Raman device is a topologically linear or circular Raman laser or amplifier, and the wavelength selective element is a fiber Bragg grating or a WDM. The Raman device is advantageously used in an optical fiber communication system.
摘要翻译：所公开的光纤拉曼装置包括用于将第一波长lambd1和第二波长lambd2的泵浦辐射耦合到长度为二氧化硅的纤维中的装置，其中lambd1不同于lambd2，并且lambd1和lambd2都小于输出辐射 lambd0的光纤拉曼装置。所述拉曼装置还包括至少第一和第二波长选择元件，所述第一和第二波长选择元件设置成提供一个或多个用于在所述光纤中的光的拉曼移位的光学腔。光腔中的至少一个被选择为使得lambd1和lambd2中的至少一个不共振。示例性地，拉曼器件是拓扑线性或圆形拉曼激光器或放大器，并且波长选择元件是光纤布拉格光栅或WDM。拉曼装置有利地用于光纤通信系统中。

4. 发明授权

US06654522B2 Process for fabricating tapered microstructured fiber system and resultant system 失效
公开(公告)号：US06654522B2
公开(公告)日：2003-11-25
申请号：US10128622
申请日：2002-04-23
申请人： Juhi Chandalia , David John DiGiovanni , Benjamin John Eggleton , Sandra Greenberg Kosinski , Robert Scott Windeler
发明人： Juhi Chandalia , David John DiGiovanni , Benjamin John Eggleton , Sandra Greenberg Kosinski , Robert Scott Windeler
IPC分类号： G02B626
CPC分类号： G02B6/02361 , G02B6/02366 , G02B6/02371 , G02B6/02376 , G02B6/14 , G02B6/2552
摘要： The invention involves providing a microstructured fiber having a core region, a cladding region, and one or more axially oriented elements (e.g., capillary air holes) in the cladding region. A portion of the microstructured fiber is then treated, e.g., by heating and stretching the fiber, such that at least one feature of the fiber microstructure is modified along the propagation direction, e.g., the outer diameter of the fiber gets smaller, the axially oriented elements get smaller, or the axially oriented elements collapse. The treatment is selected to provide a resultant fiber length that exhibits particular properties, e.g., mode contraction leading to soliton generation, or mode expansion. Advantageously, the overall fiber length is designed to readily couple to a standard transmission fiber, i.e., the core sizes at the ends of the length are similar to a standard fiber, which allows efficient coupling of light into the microstructured fiber length.

5. 发明授权

US06050109A Method for making long-period fiber gratings 失效
标题翻译：制造长周期光纤光栅的方法
公开(公告)号：US06050109A
公开(公告)日：2000-04-18
申请号：US740826
申请日：1996-11-04
申请人： Sandra Greenberg Kosinski , Gregory Alexander Ten Eyck , Ashish Madhukar Vengsarkar
发明人： Sandra Greenberg Kosinski , Gregory Alexander Ten Eyck , Ashish Madhukar Vengsarkar
IPC分类号： G02B5/18 , G02B6/02 , G02B6/255 , G02B6/34 , C03B37/10
CPC分类号： G02B6/02147 , G02B6/2552 , G02B6/02095
摘要： Applicants have discovered that exposing optical fiber to an electrical arc produces a perturbation in its refractive index and that gratings can be made by exposing fiber to arcs at a series of locations along its length. In a first variation of the process, the fiber is exposed under tension to a high current arc (>15 mA) for a prolonged period of time (>2 s). Using this method, long period gratings can be successfully fabricated from fiber without the use of special dopants. In a second variation, the fiber is doped and the tension is reduced. The resulting grating is optically weaker but mechanically stronger. A third variation uses hydrogen-sensitized fibers and reduced currents and times. The resulting grating is optically and mechanically strong.
摘要翻译：申请人已经发现，将光纤暴露于电弧产生其折射率的扰动，并且光栅可以通过在沿其长度的一系列位置处将光纤暴露于弧而制成。在该方法的第一变化中，光纤在张力下暴露于高电流电弧（> 15mA）下长时间（> 2s）。使用这种方法，可以成功地从光纤制造长周期光栅，而不使用特殊的掺杂剂。在第二种变型中，光纤被掺杂并且张力减小。所得到的光栅光学弱，但机械更强。第三个变化使用氢敏化纤维和减少的电流和时间。所得到的光栅是光学和机械强度。

6. 发明授权

US06658183B1 Process for fabricating tapered microstructured fiber system and resultant system 失效
公开(公告)号：US06658183B1
公开(公告)日：2003-12-02
申请号：US09692955
申请日：2000-10-20
申请人： Juhi Chandalia , David John DiGiovanni , Benjamin John Eggleton , Sandra Greenberg Kosinski , Xiang Liu , Robert Scott Windeler , Chunhui Xu
发明人： Juhi Chandalia , David John DiGiovanni , Benjamin John Eggleton , Sandra Greenberg Kosinski , Xiang Liu , Robert Scott Windeler , Chunhui Xu
IPC分类号： G02B626
CPC分类号： G02B6/02361 , G02B6/02366 , G02B6/02371 , G02B6/02376 , G02B6/14 , G02B6/2552
摘要： The invention involves providing a microstructured fiber having a core region, a cladding region, and one or more axially oriented elements (e.g., capillary air holes) in the cladding region. A portion of the microstructured fiber is then treated, e.g., by heating and stretching the fiber, such that at least one feature of the fiber microstructure is modified along the propagation direction, e.g., the outer diameter of the fiber gets smaller, the axially oriented elements get smaller, or the axially oriented elements collapse. The treatment is selected to provide a resultant fiber length that exhibits particular properties, e.g., mode contraction leading to soliton generation, or mode expansion. Advantageously, the overall fiber length is designed to readily couple to a standard transmission fiber, i.e., the core sizes at the ends of the length are similar to a standard fiber, which allows efficient coupling of light into the microstructured fiber length.

7. 发明授权

US06275516B1 Article for detecting power drift in the putout of a diode array source 失效
标题翻译：用于检测二极管阵列源的电源漂移的文章
公开(公告)号：US06275516B1
公开(公告)日：2001-08-14
申请号：US09109661
申请日：1998-07-02
申请人： Susanne Arney , Sandra Greenberg Kosinski , Jane Deborah LeGrange
发明人： Susanne Arney , Sandra Greenberg Kosinski , Jane Deborah LeGrange
IPC分类号： H01S3091
CPC分类号： H01S5/4025 , H01S3/0941 , H01S5/0683
摘要： A method and article for monitoring and controlling power drift in the output of a diode array is described. The diode array is used, for example, as a light pump for a fiber laser. In one embodiment, an improved fiber laser includes the light pump, which launches light into a laser cavity. The fiber laser further includes a sampler operable to receive at least a portion of the light before it is launched into the laser cavity. The sampled portion represents a known fraction of the total light signal generated by the light pump. In some embodiments, the sampled light is directed, via the sampler, to a photodetector. The photodetector converts the sampled light into a first electrical signal and delivers it to a processor. The processor is operable to compare the electrical signal with a set-point signal representative of a desired power output of the sampled portion of the launched light. To the extent that a differential exists between the set point signal and the first electrical signal, the desired optical power is not being launched into the lasing cavity. If such a differential exists, the processor generates and sends a control signal to a controllable current source. The control signal is operable to increase or decrease the current delivered from the controllable current source to the light pump to correct power drifts in light pump output.
摘要翻译：描述了一种用于监控和控制二极管阵列输出功率漂移的方法和文章。二极管阵列例如用作光纤激光器的光泵。在一个实施例中，改进的光纤激光器包括将光发射到激光腔中的光泵。光纤激光器还包括采样器，其可操作以在光被发射到激光腔内之前接收光的至少一部分。采样部分表示由光泵产生的总光信号的已知分数。在一些实施例中，采样光通过采样器被引导到光电检测器。光电检测器将采样的光转换成第一电信号并将其传送到处理器。处理器可操作以将电信号与表示所发射光的采样部分的期望功率输出的设定点信号进行比较。在设定点信号和第一电信号之间存在差分的情况下，期望的光功率未被发射到激光腔中。如果存在这样的差分，则处理器产生并发送控制信号到可控电流源。控制信号可操作以增加或减少从可控电流源传递到光泵的电流，以校正光泵输出中的功率漂移。

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