公开(公告)号：US06999663B2

公开(公告)日：2006-02-14

申请号：US09999533

申请日：2001-10-31

申请人： Edward C. Gage ,  Steven C. Dohmeier ,  Ronald E. Gerber ,  Craig A. Parsons ,  Thomas J. Schmitt ,  Eric K. Lindmark ,  John C. Holman ,  Kevin D. Batko ,  Timothy S. Gardner

发明人： Edward C. Gage ,  Steven C. Dohmeier ,  Ronald E. Gerber ,  Craig A. Parsons ,  Thomas J. Schmitt ,  Eric K. Lindmark ,  John C. Holman ,  Kevin D. Batko ,  Timothy S. Gardner

IPC分类号： G02B6/26

CPC分类号： G02B6/2937 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4219 ,  G02B6/4231 ,  G02B6/4239 ,  G02B6/4246 ,  G02B27/108 ,  G02B27/144

摘要： An improved fiber optic tap monitor has characteristics that are flatter over the wavelength range of interest. The polarization dependence of the characteristics of the tap monitor is reduced, and the package for the tap monitor is smaller. The tap monitor reduces the amount of light reflected back to the source. The tap monitor is also assembled in a manner to improve temperature stability, so that its characteristics over a range of temperatures are more nearly constant.

公开(公告)号：US06909827B2

公开(公告)日：2005-06-21

申请号：US10138168

申请日：2002-05-01

申请人： Thomas J. Schmitt ,  Jeffrey P. Treptau ,  Ronald E. Gerber ,  Timothy S. Gardner ,  Edward C. Gage ,  Kevin D. Batko

发明人： Thomas J. Schmitt ,  Jeffrey P. Treptau ,  Ronald E. Gerber ,  Timothy S. Gardner ,  Edward C. Gage ,  Kevin D. Batko

IPC分类号： G02B6/26 ,  G02B6/32

CPC分类号： G02B6/2746 ,  G02B6/32

摘要： Two sub-assemblies in a fiber optic device are fitted to mounting faces of a central section. The mounting faces are typically flat and mutually orthogonal, thus permitting the adjustment of the two sub-assemblies in decoupled degrees of freedom. This results in a simpler adjustment procedure for aligning the two sub-assemblies. Furthermore, the mounting of the sub-assemblies using the orthogonal mounting faces permits the use of relatively thin layers of adhesive that reduce misalignment problems arising from mismatched thermal expansion when the temperature changes.

摘要翻译： 光纤装置中的两个子组件装配到中心部分的安装面上。 安装面通常是平坦且相互正交的，从而允许以分离的自由度调节两个子组件。 这导致用于对准两个子组件的更简单的调整过程。 此外，使用正交安装面的子组件的安装允许使用相对薄的粘合剂层，其减少当温度变化时由错配的热膨胀引起的不对准问题。

公开(公告)号：US06594418B1

公开(公告)日：2003-07-15

申请号：US10138163

申请日：2002-05-01

申请人： Jeffrey P. Treptau ,  Thomas J. Schmitt ,  Ronald E. Gerber ,  Timothy S. Gardner ,  Edward C. Gage ,  Kevin D. Batko

发明人： Jeffrey P. Treptau ,  Thomas J. Schmitt ,  Ronald E. Gerber ,  Timothy S. Gardner ,  Edward C. Gage ,  Kevin D. Batko

IPC分类号： G02B632

CPC分类号： G02B6/32 ,  G02B6/264 ,  G02B6/266 ,  G02B6/2746

摘要： Two sub-assemblies in a fiber optic device are fitted to respective end faces of a central section, along a longitudinal axis. The end faces of the central section are non-parallel. Butting the sub-assemblies to respective ends of the central section permits relative adjustment of the two sub-assemblies in substantially decoupled degrees of freedom. This results in a simpler adjustment procedure for aligning the two sub-assemblies. Furthermore, the mounting of the sub-assemblies using angled faces permits the use of relatively thin layers of adhesive that reduce misalignment problems arising from mismatched thermal expansion when the temperature changes.

摘要翻译： 纤维光学装置中的两个子组件沿着纵向轴线装配到中心部分的相应端面。 中心部分的端面不平行。 将子组件对接到中心部分的相应端部允许基本上分离的自由度的两个子组件的相对调整。 这导致用于对准两个子组件的更简单的调整过程。 此外，使用成角度的表面安装子组件允许使用相对薄的粘合剂层，其减少当温度变化时由不匹配的热膨胀引起的不对准问题。

公开(公告)号：US06466525B1

公开(公告)日：2002-10-15

申请号：US09385789

申请日：1999-08-30

申请人： Edward C. Gage ,  Ronald E. Gerber ,  Ghanim A. Al-Jumaily ,  James E. Durnin ,  Kevin D. Batko

发明人： Edward C. Gage ,  Ronald E. Gerber ,  Ghanim A. Al-Jumaily ,  James E. Durnin ,  Kevin D. Batko

IPC分类号： G11B700

CPC分类号： G11B7/08576 ,  G11B7/08564 ,  G11B7/122 ,  G11B7/1356 ,  G11B7/1362 ,  G11B11/10545 ,  G11B11/10569 ,  G11B11/1058

摘要： An optical data storage system includes an optical disc and an armature adjacent the disc. An optical transducer mounted on the arm provides an optical beam output directed parallel to the plane of the disc. An optical actuator mounted on the arm and positioned in the optical beam adjusts the direction of the optical beam and a mirror is positioned to direct the optical beam in a direction perpendicular to the disc and toward the disc. An optical head is positioned at a distal end of the arm and is adapted to couple the optical beam to the optical disc. An arm actuator is coupled to the arm to move the arm relative to the disc and provide coarse positioning of the optical head relative to tracks on the disc. The optical actuator provides fine adjustment of the optical beam between tracks on the disc which are proximate the optical head due to the coarse adjustment by the arm actuator.

摘要翻译： 光学数据存储系统包括光盘和邻近光盘的电枢。 安装在臂上的光学换能器提供平行于盘的平面定向的光束输出。 安装在臂上并定位在光束中的光学致动器调节光束的方向，并且将反射镜定位成沿垂直于盘并朝向盘的方向引导光束。 光学头位于臂的远端并且适于将光束耦合到光盘。 臂致动器联接到臂以相对于盘移动臂并且提供光学头相对于盘上的轨道的粗略定位。 由于臂致动器的粗调，光学致动器在光盘上靠近光学头的轨道之间提供光束的精细调节。

公开(公告)号：US06860644B2

公开(公告)日：2005-03-01

申请号：US09999891

申请日：2001-10-31

申请人： Edward C. Gage ,  Timothy S. Gardner ,  Ronald E. Gerber ,  John J. Taranto

发明人： Edward C. Gage ,  Timothy S. Gardner ,  Ronald E. Gerber ,  John J. Taranto

IPC分类号： G02B6/26 ,  G02B6/32 ,  G02B6/38 ,  G02B6/293 ,  G02B6/34

CPC分类号： G02B6/325 ,  G02B6/262 ,  G02B6/32 ,  G02B6/3885

摘要： Generally, the present invention relates to a fiber optic device that is easier to align than conventional devices, and to a method for aligning such devices. An embodiment of the invention includes a first focusing element having an optical axis and a first focal length, and a first optical fiber optically coupled to a first side of the first focusing element. The first optical fiber is disposed at a first transverse distance from the optical axis so that light from the first optical fiber propagates on a second side of the first focusing element as a substantially collimated beam at a first angle to the optical axis. A wedged optical element is optically coupled to the second side of the first focusing element and deviates the substantially collimated beam so as to propagate in a direction substantially parallel to the optical axis.

摘要翻译： 通常，本发明涉及一种比常规设备更容易对准的光纤设备以及用于对准这些设备的方法。 本发明的实施例包括具有光轴和第一焦距的第一聚焦元件和与第一聚焦元件的第一侧光耦合的第一光纤。 第一光纤设置在距光轴的第一横向距离处，使得来自第一光纤的光在第一聚焦元件的第二侧作为基本准直的光束以与光轴成第一角度传播。 楔形光学元件光耦合到第一聚焦元件的第二侧，并使基本上准直的光束偏离，以便在基本平行于光轴的方向上传播。

公开(公告)号：US06950574B2

公开(公告)日：2005-09-27

申请号：US10207573

申请日：2002-07-29

申请人： Timothy S. Gardner ,  Ronald E. Gerber ,  Edward C. Gage

发明人： Timothy S. Gardner ,  Ronald E. Gerber ,  Edward C. Gage

IPC分类号： G02B6/32 ,  G02B6/34

CPC分类号： G02B6/29383 ,  G02B6/2937 ,  G02B6/29395 ,  G02B6/322

摘要： The invention relates to an approach to angle tuning a thin film, interference filter device in which light is delivered to the filter from a fiber lying off-axis relative to the filter, and to a method of optically coupling such a device. The optical device comprises a lens unit having an optical axis and an adjustable effective focal length. The device also includes a first port disposed on a first side of the lens unit and on a first side of the optical axis, and an optical element disposed on the second side of the lens unit. The optical element has an optical characteristic that is dependent on the angle of incidence on the optical element. The lens unit has an adjustable focal length so light from the first port is incident on the optical element at a desired angle.

摘要翻译： 本发明涉及一种角度调整薄膜干涉滤光器装置的方法，其中光从相对于滤光片离轴的光纤传送到滤光器，以及光学耦合这种装置的方法。 光学装置包括具有光轴和可调节的有效焦距的透镜单元。 该装置还包括设置在透镜单元的第一侧上并且在光轴的第一侧上的第一端口和设置在透镜单元的第二侧上的光学元件。 光学元件具有取决于光学元件上的入射角的光学特性。 透镜单元具有可调节的焦距，使得来自第一端口的光以期望的角度入射在光学元件上。

公开(公告)号：US5828630A

公开(公告)日：1998-10-27

申请号：US852975

申请日：1997-05-07

申请人： Edward C. Gage ,  Clarke K. Eastman ,  Steven C. Dohmeier ,  James A. Barnard

发明人： Edward C. Gage ,  Clarke K. Eastman ,  Steven C. Dohmeier ,  James A. Barnard

IPC分类号： G11B7/09 ,  G11B7/125 ,  G11B7/135 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B7/1356 ,  G11B11/1053 ,  G11B11/10534 ,  G11B11/10545 ,  G11B7/126 ,  G11B11/10576 ,  G11B11/10595 ,  G11B7/0901

摘要： A magneto-optic head for reading and writing information on a magneto-optic recording medium so that diffraction effects can be monitored during writing is disclosed. The magneto-optic head includes a source of laser light for projecting a laser light beam during writing and reading, a first partial polarizing beamsplitter disposed in the beam of light for causing one beam of light to be transmitted to the recording medium and for receiving reflected light and for projecting such light in a first direction, a second polarizing beamsplitter for receiving polarized light in the first direction from the first partial polarizing beamsplitter and projecting such polarized light in second and third directions, a first detector for receiving light in the second direction from the second polarizing beamsplitter and a second detector for receiving light in the second direction from the second polarizing beamsplitter, each detector including at least two photosensitive elements being split in the in-track direction so that in-track diffraction effects can be determined.

摘要翻译： 公开了一种用于在磁光记录介质上读取和写入信息以便在写入期间可以监视衍射效应的磁光头。 磁光头包括用于在写入和读取期间投射激光束的激光源，设置在光束中的第一部分偏振分束器，用于使一束光被传输到记录介质并用于接收反射 用于沿第一方向投射这样的光;第二偏振分束器，用于从第一部分偏振分束器沿第一方向接收偏振光并在第二和第三方向上投射这种偏振光;第一检测器，用于接收第二方向的光 从第二偏振分束器和第二检测器接收来自第二偏振分束器的第二方向的光，每个检测器包括沿轨道内方向分割的至少两个光敏元件，从而可以确定轨道内衍射效应。

公开(公告)号：US5586101A

公开(公告)日：1996-12-17

申请号：US397293

申请日：1995-03-01

申请人： Edward C. Gage ,  Steven C. Dohmeier

发明人： Edward C. Gage ,  Steven C. Dohmeier

IPC分类号： G11B7/005 ,  G11B11/105 ,  G11B20/10 ,  G11B7/00

CPC分类号： G11B20/10009 ,  G11B11/10515 ,  G11B7/005

摘要： An apparatus and method for detecting a data signal read from a magneto-optic (MO) storage medium. First and second detected signals are generated from first and second portions, respectively, of a radiation beam reflected from the medium. First and second gain control circuits are coupled to the first and second detectors, respectively. Each of the gain control circuits is operative to alter the gain of a signal path of the corresponding detected signal in response to a control signal which varies in accordance with a difference between the corresponding detected signal and a reference signal. The reference signals in each gain control circuit may be a common reference voltage level. A signal difference circuit produces a data signal corresponding to the difference between the detected signals.

摘要翻译： 一种用于检测从磁光（MO）存储介质读取的数据信号的装置和方法。 第一和第二检测信号分别从从介质反射的辐射束的第一和第二部分产生。 第一和第二增益控制电路分别耦合到第一和第二检测器。 响应于根据对应的检测信号和参考信号之间的差而变化的控制信号，增益控制电路中的每一个可操作以改变相应检测信号的信号路径的增益。 每个增益控制电路中的参考信号可以是公共参考电压电平。 信号差分电路产生对应于检测信号之间的差的数据信号。

公开(公告)号：US5537383A

公开(公告)日：1996-07-16

申请号：US397701

申请日：1995-03-01

申请人： Edward C. Gage ,  Steven C. Dohmeier

发明人： Edward C. Gage ,  Steven C. Dohmeier

IPC分类号： G11B7/005 ,  G11B7/125 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B11/10595 ,  G11B7/005 ,  G11B11/10515

摘要： An apparatus and method for providing differential detection and source noise subtraction in data signals read from magneto-optic (MO), write-once (WO) or other types of optical storage media using an incident radiation beam. A source monitor signal is generated by detecting radiation from an optical source providing the radiation beam. An error detector generates an error signal corresponding to a difference between the source monitor signal and a reference signal. A power level of the radiation beam is adjusted in response to the error signal. A data signal generator is adapted to receive a return beam resulting from application of the radiation beam to the medium and to generate a WO data signal from the return beam. A signal combiner combines the data signal and the source monitor signal to provide a compensated WO data signal. An MO data signal may be generated using a separate AGC circuit to adjust the gain of each differential detection channel in accordance with low-frequency amplitude differences between the detected signals and a reference signal. The same reference signal may be used in both the source noise subtraction and the MO data signal generation.

摘要翻译： 一种用于在使用入射辐射束从磁光（MO），一次写入（WO）或其他类型的光存储介质读取的数据信号中提供差分检测和源噪声减除的装置和方法。 通过检测来自提供辐射束的光源的辐射来产生源监测信号。 误差检测器产生与源监视信号和参考信号之间的差相对应的误差信号。 响应于误差信号调整辐射束的功率电平。 数据信号发生器适于接收由辐射束施加到介质而产生的返回光束，并从返回光束产生WO数据信号。 信号组合器组合数据信号和源监视器信号以提供经补偿的WO数据信号。 可以使用单独的AGC电路来生成MO数据信号，以根据检测到的信号与参考信号之间的低频幅度差来调整每个差分检测信​​道的增益。 在源噪声减除和MO数据信号生成中都可以使用相同的参考信号。

公开(公告)号：US5903537A

公开(公告)日：1999-05-11

申请号：US834571

申请日：1997-04-07

申请人： Edward C. Gage ,  Clarke K. Eastman ,  Roger A. Hajjar ,  Steven C. Dohmeier

发明人： Edward C. Gage ,  Clarke K. Eastman ,  Roger A. Hajjar ,  Steven C. Dohmeier

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B7/13 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/13

摘要： A recording apparatus and method are disclosed for forming marks on a recording medium. The recording apparatus includes an arrangement having an adjustable light source for producing a beam of light having first and second portions, with the second portion for recording marks on the medium, and an arrangement responsive to the first portion of the light beam and including a front facet detector positioned to receive the first portion of the light beam directly from the light source for producing a front facet signal. The recording apparatus also includes an arrangement for detecting light from the second portion of the light beam which is reflected from the medium and for producing a mark formation signal, and circuitry responsive to the front facet signal and the mark formation signal for producing a mark formation effectiveness signal. The recording apparatus further includes an arrangement for storing a mark formation effectiveness reference signal and circuitry responsive to the mark formation effectiveness signal and the mark formation effectiveness reference signal for adjusting the power of the light source during recording so that the amount of power is adjusted to maintain optimum mark quality.

摘要翻译： 公开了用于在记录介质上形成标记的记录装置和方法。 记录装置包括具有可调节光源的装置，用于产生具有第一和第二部分的光束，第二部分用于在介质上记录标记，以及响应于光束的第一部分并且包括前部 定位成从光源直接接收光束的第一部分以产生前刻面信号。 记录装置还包括用于检测来自介质的反射的光束的第二部分的光并用于产生标记形成信号的装置，以及响应于前面信号和标记形成信号的电路，用于产生标记形成 有效信号。 记录装置还包括用于存储标记形成有效性参考信号和响应于标记形成有效性信号的电路和用于在记录期间调节光源的功率的标记形成有效性参考信号的装置，使得功率量被调整为 保持最佳标记质量。