Universal grinding machine
    3.
    发明授权
    Universal grinding machine 有权
    万能磨床

    公开(公告)号:US6126526A

    公开(公告)日:2000-10-03

    申请号:US406270

    申请日:1999-09-24

    摘要: A universal grinding machine, particularly for the grinding of tools, having a tool magazine in which a plurality of grinding tools, together with coolant supply devices which are matched thereto, are disposed in holders and can be supplied according to choice to the grinding spindle, where the grinding tool and its coolant supply device are introduced into their receivers; simultaneously by an axial movement of the grinding spindle and of the grinding spindle slide and are withdrawn by a movement of the grinding spindle and of its grinding spindle slide perpendicular to the grinding spindle axis so that the grinding tool and the coolant supply device are always in a position in relation to each other which is correct for machining.

    摘要翻译: 一种通用研磨机,特别是用于研磨工具,具有刀库,其中多个研磨工具与其配合的冷却剂供应装置一起设置在保持器中,并且可以根据选择提供给研磨主轴, 其中研磨工具及其冷却剂供应装置被引入其接收器中; 同时通过研磨主轴和研磨主轴滑块的轴向移动,并且通过研磨主轴及其与研磨主轴轴线垂直的研磨主轴滑块的运动而被撤回,使得研磨工具和冷却剂供应装置始终处于 相对于彼此正确的加工位置。

    Chiral fiber grating device and method of fabrication thereof
    4.
    发明申请
    Chiral fiber grating device and method of fabrication thereof 失效
    手性光纤光栅装置及其制造方法

    公开(公告)号:US20070147736A1

    公开(公告)日:2007-06-28

    申请号:US11646130

    申请日:2006-12-27

    IPC分类号: G02B6/34

    摘要: A chiral fiber grating for reflecting, scattering or polarizing an optical signal, or for forming a fiber laser feedback structure is disclosed. The chiral fiber grating is fabricated by fusing and then twisting/drawing two tapered optical fibers in accordance with a predetermined fabrication protocol. In one embodiment of the invention, the chiral fiber grating includes two single helix structure end-regions, with a double helix structure therebetween, providing the grating with apodizing properties. In another embodiment of invention, the pitch profile along a portion of the grating is configured to produce desired chiral fiber grating properties. In yet another embodiment of the invention, the chiral fiber grating, comprising two single helix end regions and a middle double helix region, may be separated into two or more portions after fabrication, for example to provide one or more single helix chiral fiber gratings and one or more double helix chiral fiber gratings. In an alternate embodiment of the invention, a double helix structure chiral fiber grating is provided by twisting two parallel optical fibers around a longitudinal central axis positioned therebetween.

    摘要翻译: 公开了一种用于反射,散射或偏振光信号或用于形成光纤激光反馈结构的手征光纤光栅。 手性光纤光栅通过根据预定的制造方案进行熔合然后扭曲/拉伸两个锥形光纤来制造。 在本发明的一个实施方案中,手性光纤光栅包括两个单螺旋结构的端部区域,其间具有双螺旋结构,为光栅提供了变迹性质。 在本发明的另一个实施例中,沿着光栅的一部分的间距轮廓被配置成产生所需的手性光纤光栅特性。 在本发明的另一个实施方案中,包括两个单螺旋端区域和中间双螺旋区域的手性光纤光栅可以在制造之后被分离成两个或多个部分,例如以提供一个或多个单螺旋手性光纤光栅和 一个或多个双螺旋手性光纤光栅。 在本发明的替代实施例中,双螺旋结构手性光纤光栅通过围绕位于它们之间的纵向中心轴线扭转两个平行光纤来提供。

    Chiral in-fiber polarizer apparatus and method
    5.
    发明申请
    Chiral in-fiber polarizer apparatus and method 失效
    手性光纤偏振器装置及方法

    公开(公告)号:US20050089271A1

    公开(公告)日:2005-04-28

    申请号:US10972966

    申请日:2004-10-25

    摘要: A chiral in-fiber polarizer implemented in a chiral fiber structure having a core and a cladding surrounding the core, is provided. The chiral polarizer includes an entry end for receiving incident light and an exit end for outputting polarized light, as well as a pitch variation along its length between the entry and exit ends in accordance with a predetermined desirable pitch profile, wherein in one embodiment of the inventive polarizer, the inverse value of the chiral structure's pitch at the exit end is less than at the entry end, and preferably substantially equal to zero. The pitch profile may be advantageously selected to correspond to one or more predetermined pitch configurations, may be determined in accordance with one or more mathematical functions, or may be random. In accordance with the present invention, at least one of various parameters of the chiral structure, including, but not limited to, the core and cladding refractive indices and sizes, and the pitch profile, may be configured and selected to substantially eliminate the undesirable polarization component of the incident light by achieving an optimized extinction ratio within a desired spectral range. In another embodiment of the inventive chiral polarizer, the pitch profile is selected and configured such that the inverse value of the chiral structure's pitch at the entry end of the chiral structure is also zero. This arrangement enables significant reduction of insertion loss of the incident light entering the entry end of the inventive polarizer.

    摘要翻译: 提供了具有芯和围绕芯的包层的手性纤维结构体中实现的手征式光纤偏振器。 手征偏振器包括用于接收入射光的入口端和用于输出偏振光的出射端,以及根据预定的期望间距轮廓沿入口端和出射端之间的长度的间距变化,其中在 本发明的偏振器,出口端处的手性结构的间距的反向值小于入口端处,优选地基本上等于零。 可以有利地选择音调轮廓以对应于一个或多个预定音调配置,可以根据一个或多个数学函数来确定,或者可以是随机的。 根据本发明,可以配置和选择手性结构的各种参数中的至少一个,包括但不限于芯和包层的折射率和尺寸以及沥青分布,以基本上消除不期望的极化 通过在期望的光谱范围内实现优化的消光比来实现入射光的分量。 在本发明的手性偏振器的另一个实施方案中,选择和配置音调轮廓,使得手性结构的入口端处的手性结构的间距的倒数值也为零。 这种布置使得能够显着降低入射到本发明的偏振器入口端的入射光的插入损耗。

    Universal grinding machine
    6.
    发明授权
    Universal grinding machine 失效
    万能磨床

    公开(公告)号:US06190242B1

    公开(公告)日:2001-02-20

    申请号:US09405880

    申请日:1999-09-24

    IPC分类号: B24B700

    摘要: A universal grinding machine having a plurality of workpiece holders, each of which can be moved independently of each other or jointly, by a separate slide, in the longitudinal direction of the workpiece on a slide guide disposed on the machine bed, or which can be fixed independently of each other or jointly to the machine bed.

    摘要翻译: 一种通用研磨机,具有多个工件保持器,每个工件保持器可以通过单独的滑动件在工件的纵向方向上彼此独立地或联合地移动到设置在机床上的滑动引导件上,或者可以是 彼此独立地或共同地固定到机床。

    Optical fiber coupler with low loss and high coupling coefficient and method of fabrication thereof
    7.
    发明申请
    Optical fiber coupler with low loss and high coupling coefficient and method of fabrication thereof 失效
    具有低损耗和高耦合系数的光纤耦合器及其制造方法

    公开(公告)号:US20050135740A1

    公开(公告)日:2005-06-23

    申请号:US11015565

    申请日:2004-12-18

    摘要: An optical fiber coupler capable of providing a low loss, high coupling coefficient interface between conventional optical fibers and optical waveguide devices is provided. The novel coupler, which may be polarization maintaining, if a polarization maintaining preform is used in its fabrication. includes a core, a cladding, a first end for interfacing with an optical fiber and a second end for interfacing with an optical waveguide device. The sizes of the core and cladding are gradually reduced from the first end to the second end in accordance with a predetermined reduction profile. Various parameters, such as refractive indices and sizes of the core and cladding and the reduction profile are selected to produce a low numerical aperture at the first end and a high numerical aperture at the second end, while advantageously minimizing insertion loss and maximizing the coupling coefficient at each end. In another embodiment, the novel coupler includes a secondary cladding which is also reduced between the first and second ends to improve the strength of the coupler structure at the second end. In yet another embodiment, one or two novel couplers are formed along with a chiral fiber based optical waveguide device as a single continuous element. The optical fiber preform used to fabricate the novel optical fiber coupler can be etched prior to fabrication to facilitate application of the reduction profile.

    摘要翻译: 提供了能够提供常规光纤和光波导器件之间的低损耗高耦合系数接口的光纤耦合器。 如果在其制造中使用偏振保持预制件,则该新型耦合器可以是偏振保持。 包括芯,包层,用于与光纤接口的第一端和用于与光波导器件对接的第二端。 芯和包层的尺寸根据预定的减小曲线从第一端逐渐减小到第二端。 选择各种参数,例如芯和包层的折射率和尺寸以及减小分布,以在第一端产生低数值孔径,在第二端产生高数值孔径,同时有利地使插入损耗最小化并使耦合系数最大化 在每一端 在另一个实施例中,新型耦合器包括次级包层,其也在第一和第二端之间减小,以提高第二端处的耦合器结构的强度。 在另一个实施例中,一个或两个新型耦合器与作为单个连续元件的基于手性光纤的光波导器件一起形成。 用于制造新型光纤耦合器的光纤预制件可以在制造之前进行蚀刻以便于应用减薄曲线。