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41. 发明授权

US06376830B1 System and method for measuring the transfer function of a guided wave device 有权
标题翻译：用于测量导波装置的传递函数的系统和方法
公开(公告)号：US06376830B1
公开(公告)日：2002-04-23
申请号：US09606120
申请日：2000-06-15
申请人： Mark E. Froggatt , Turan Erdogan
发明人： Mark E. Froggatt , Turan Erdogan
IPC分类号： G01C1964
CPC分类号： G01M11/3172 , G01M11/3145 , G01M11/3181
摘要： A method/system are provided for measuring the N×N scalar transfer function elements for an N-port guided wave device. Optical energy of a selected wavelength is generated at a source and directed along N reference optical paths having N reference path lengths. Each reference optical path terminates in one of N detectors such that N reference signals are produced at the N detectors. The reference signals are indicative of amplitude, phase and frequency of the optical energy carried along the N reference optical paths. The optical energy from the source is also directed to the N-ports of the guided wave device and then on to each of the N detectors such that N measurement optical paths are defined between the source and each of the N detectors. A portion of the optical energy is modified in terms of at least one of the amplitude and phase to produce N modified signals at each of the N detectors. At each of the N detectors, each of the N modified signals is combined with a corresponding one of the N reference signals to produce corresponding N combined signals at each of the N detectors. A total of N2 measurement signals are generated by the N detectors. Each of the N2 measurement signals is sampled at a wave number increment &Dgr;k so that N2 sampled signals are produced. The N×N transfer function elements are generated using the N2 sampled signals. Reference and measurement path length constraints are defined such that the N combined signals at each of the N detectors are spatially separated from one another in the time domain.
摘要翻译：提供了一种用于测量N端口导波装置的N×N标量传递函数单元的方法/系统。所选波长的光能量在源处产生并沿着具有N个参考路径长度的N个参考光路引导。每个参考光路终止于N个检测器中的一个，使得N个检测器产生N个参考信号。参考信号指示沿着N个参考光路携带的光能的幅度，相位和频率。来自源极的光能还被引导到导波装置的N端口，然后被引导到N个检测器中的每一个，使得N个测量光路被定义在源和每个N个检测器之间。根据幅度和相位中的至少一个来修改光能的一部分以在N个检测器中的每一个处产生N个修正的信号。在每个N个检测器中，N个修正信号中的每一个与N个参考信号中的相应一个组合，以在N个检测器中的每一个处产生相应的N个组合信号。共有N2个测量信号由N个检测器产生。每个N2测量信号以波数增量DELTAk采样，从而产生N2个采样信号。使用N 2个采样信号生成N×N传递函数元素。定义参考和测量路径长度约束，使得N个检测器中的每一个处的N个组合信号在时域中彼此空间上分离。

42. 发明授权

US06211957B1 In-line all-fiber polarimeter 失效
标题翻译：在线全纤维旋光仪
公开(公告)号：US06211957B1
公开(公告)日：2001-04-03
申请号：US09517865
申请日：2000-03-03
申请人： Turan Erdogan , Thomas Andrew Strasser , Paul Stephen Westbrook
发明人： Turan Erdogan , Thomas Andrew Strasser , Paul Stephen Westbrook
IPC分类号： G01J400
CPC分类号： G02B6/2706 , G01J4/04 , G01N21/21 , G02B6/2766 , G02B6/29319 , G02B6/4215
摘要： An in-line optical fiber polarimeter comprises a plurality of fiber gratings and a single wave plate, disposed sequentially along a length of optical fiber. The fiber gratings are precisely oriented and have a predetermined grating period such that each grating functions to out-couple a predetermined portion of the optical signal passing through the polarimeter. A separate detector is associated with each grating to measure the out-coupled signal. The four Stokes parameters can be determined from the set of measurements and then used to determine to state of polarization of an optical signal passing through the polarimeter.
摘要翻译：一种在线光纤偏振计包括沿光纤长度依次设置的多个光纤光栅和单波片。光纤光栅被精确定向并且具有预定的光栅周期，使得每个光栅用于将耦合通过偏振计的光信号的预定部分。单独的检测器与每个光栅相关联以测量输出耦合信号。可以从该组测量中确定四个斯托克斯参数，然后用于确定通过偏振计的光信号的偏振状态。

43. 发明授权

US08059327B1 Variable spectral filter apparatus 有权
标题翻译：可变光谱滤波装置
公开(公告)号：US08059327B1
公开(公告)日：2011-11-15
申请号：US12770160
申请日：2010-04-29
申请人： Turan Erdogan , Robert James Beeson
发明人： Turan Erdogan , Robert James Beeson
IPC分类号： G02B26/00
CPC分类号： G02B26/007
摘要： A variable spectral filter apparatus has a filter support rotatable about a single axis of rotation and has at least first and second transmissive spectral filters, each spectral filter having a filter width defined by its first and second edges, wherein the filter width is orthogonal to the axis. The first edges of the filters are equidistant from the axis of rotation when the filter support is rotated to any angle. The plane of each of the spectral filters is parallel to the axis. Rotational positions of the filter support about the axis of rotation, over a first 60 degree range of angles, define, between the first and second edges of at least the first spectral filter, an undeviated filtered light path of at least half the filter width that extends orthogonally with respect to the axis. A rotational actuator is energizable to rotate the filter support about the axis.
摘要翻译：可变光谱滤波器装置具有可围绕单个旋转轴线旋转的滤光器支架，并且具有至少第一和第二透射光谱滤光器，每个光谱滤光器具有由其第一和第二边缘限定的滤光器宽度，其中滤光片宽度与轴。当过滤器支撑件旋转到任何角度时，过滤器的第一边缘与旋转轴线等距。每个频谱滤波器的平面平行于轴。过滤器支撑件围绕旋转轴线的旋转位置在第一60度的角度范围内限定至少第一光谱滤光器的第一和第二边缘之间的至少一半的过滤器宽度的未经过滤的光路，相对于轴正交延伸。旋转致动器可激励以围绕轴线旋转过滤器支撑件。

44. 发明申请

US20110267678A1 Variable Spectral Filter Apparatus 有权
标题翻译：可变光谱滤波器
公开(公告)号：US20110267678A1
公开(公告)日：2011-11-03
申请号：US12770160
申请日：2010-04-29
申请人： Turan Erdogan , Robert James Beeson
发明人： Turan Erdogan , Robert James Beeson
IPC分类号： G02B26/00 , G02B5/22
CPC分类号： G02B26/007
摘要： A variable spectral filter apparatus has a filter support rotatable about a single axis of rotation and has at least first and second transmissive spectral filters, each spectral filter having a filter width defined by its first and second edges, wherein the filter width is orthogonal to the axis. The first edges of the filters are equidistant from the axis of rotation when the filter support is rotated to any angle. The plane of each of the spectral filters is parallel to the axis. Rotational positions of the filter support about the axis of rotation, over a first 60 degree range of angles, define, between the first and second edges of at least the first spectral filter, an undeviated filtered light path of at least half the filter width that extends orthogonally with respect to the axis. A rotational actuator is energizable to rotate the filter support about the axis.
摘要翻译：可变光谱滤波器装置具有可围绕单个旋转轴线旋转的滤光器支架，并且具有至少第一和第二透射光谱滤光器，每个光谱滤光器具有由其第一和第二边缘限定的滤光器宽度，其中滤光片宽度与轴。当过滤器支撑件旋转到任何角度时，过滤器的第一边缘与旋转轴线等距。每个频谱滤波器的平面平行于轴。过滤器支撑件围绕旋转轴线的旋转位置在第一60度角度范围内限定至少第一光谱滤光器的第一和第二边缘之间的至少一半的过滤器宽度的未变形的滤光光路，相对于轴正交延伸。旋转致动器可激励以围绕轴线旋转过滤器支撑件。

45. 发明授权

US06447959B1 Amplitude mask for writing long-period gratings 失效
标题翻译：用于写入长周期光栅的幅度掩模
公开(公告)号：US06447959B1
公开(公告)日：2002-09-10
申请号：US09572520
申请日：2000-05-17
申请人： Turan Erdogan , Alan D. Heaney , David B. Stegall
发明人： Turan Erdogan , Alan D. Heaney , David B. Stegall
IPC分类号： G03F900
CPC分类号： G02B6/02142 , G03F7/0005
摘要： Long-period gratings are written more quickly and at higher intensities by amplitude masks having shadow-forming patterns that scatter, redirect, or otherwise divert shadow portions of radiation used for writing the gratings instead of blocking the shadow portions by absorption or reflection. The shadow-forming masks can be formed along transparent base optics by arrays of diffusers, diffractors, or refractors that relatively divert different portions of the radiation.
摘要翻译：长时间光栅通过具有阴影形成图案的幅度掩模更快地写入，并且以更高的强度写入，这些阴影形成图案散射，重定向或以其他方式转移用于写入光栅的辐射的阴影部分，而不是通过吸收或反射来阻挡阴影部分。阴影形成掩模可以通过相对偏转辐射的不同部分的扩散器，衍射体或折射体的阵列沿透明基底光学器件形成。

46. 发明授权

US06950611B2 In-line polarization monitoring and control in lightwave communication systems 有权
标题翻译：光波通信系统中的在线极化监测与控制
公开(公告)号：US06950611B2
公开(公告)日：2005-09-27
申请号：US09781857
申请日：2001-02-12
申请人： Turan Erdogan , Thomas Andrew Strasser , Paul Stephen Westbrook
发明人： Turan Erdogan , Thomas Andrew Strasser , Paul Stephen Westbrook
IPC分类号： H04B10/135 , H04B10/00
CPC分类号： H04B10/2572
摘要： Polarization monitoring and control in a lightwave communication system is achieved by using an in-line polarimeter in conjunction with a polarization controller. The devices are readily compact, accurate and therefore capable of implementation in a variety of system applications. In one embodiment, a polarimeter and controller can be coupled together by a feedback loop between the polarimeter output and the controller input to provide “active polarization control” (APC).
摘要翻译：光波通信系统中的极化监测和控制通过使用在线偏振计和偏振控制器来实现。这些设备容易紧凑，准确，因此能够在各种系统应用中实现。在一个实施例中，偏振计和控制器可以通过偏振计输出和控制器输入之间的反馈回路耦合在一起，以提供“主动偏振控制”（APC）。

47. 发明授权

US06411755B1 Cladding-assisted single-mode fiber coupler 失效
标题翻译：包层辅助单模光纤耦合器
公开(公告)号：US06411755B1
公开(公告)日：2002-06-25
申请号：US09559998
申请日：2000-04-27
申请人： Turan Erdogan
发明人： Turan Erdogan
IPC分类号： G02B634
CPC分类号： G02B6/02095 , G02B6/14 , G02B6/29319 , G02B6/2937 , G02B6/30
摘要： A single-mode fiber includes a grating located near a fiber tip to shift transmitted light from a fundamental core mode to one or more higher cladding modes. Light exiting the fiber from the cladding mode occupies more area but is more collimated. Translational alignment tolerances are relaxed by the improvement in collimation, allowing couplings to be made directly with the single-mode fiber or through the intermediacy of a conventional lens, which can itself be aligned more readily and be less fast.
摘要翻译：单模光纤包括位于光纤尖端附近的光栅，以将透射光从基本芯模移动到一个或多个更高的包层模式。从包层模式离开光纤的光线占据更多的面积，但更准确。通过准直的改进来放宽平移对准公差，使得可以使用单模光纤直接进行耦合，或者通过传统透镜的中间化，其本身可以更容易地对准并且不太快。

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