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1. 发明授权

US06879619B1 Method and apparatus for filtering an optical beam 失效
标题翻译：用于过滤光束的方法和装置
公开(公告)号：US06879619B1
公开(公告)日：2005-04-12
申请号：US09626526
申请日：2000-07-27
申请人： Evan D. H. Green , William B. Chapman
发明人： Evan D. H. Green , William B. Chapman
IPC分类号： G02B5/28 , G02B6/34 , G02B7/00 , G02B26/00 , H01S5/022 , H01S5/0687 , H01S5/14 , H04J14/02 , H01S3/98
CPC分类号： H01S5/141 , G02B5/281 , G02B5/284 , G02B6/29358 , G02B6/29361 , G02B6/29395 , G02B26/002 , G02B26/007 , H01S3/1062 , H01S5/02248 , H01S5/02284 , H01S5/0687 , H04J14/02
摘要： The invention pertains to wavelength-agile optical filters suitable for wavelength-division-multiplexed (WDM) optical communications networks. More particularly, the invention pertains to optical filters with a wavelength reference that can be remotely switched to arbitrarily selectable channels on a standard grid, and to re-configurable optical communications networks employing same. The present invention provides a communication apparatus with a tunable filter which may be used in a wide range of applications including tuning an external cavity laser (ECL), selecting a wavelength for an add/drop multiplexer and providing channel selection and feedback for a wavelength locker. The filter may be utilized as a discrete component or in combination with circulators, wavelength lockers and gain medium. The filter may be implemented in whole or in part as part of a gain medium. The tunable filter exhibits a compact form factor and precise tuning to any selected wavelength of a predetermined set of wavelengths comprising a wavelength grid. The tunable filter may thus be utilized in telecom applications to generate the center wavelengths for any channel on the ITU or other optical grid.
摘要翻译：本发明涉及适用于波分复用（WDM）光通信网络的波长敏捷光学滤波器。更具体地，本发明涉及具有波长参考的光学滤波器，其可以远程地切换到标准网格上的任意可选择的信道，以及使用其的可重新配置的光通信网络。本发明提供了一种具有可调谐滤波器的通信装置，其可以在广泛的应用中使用，包括调谐外腔激光器（ECL），为加/减多路复用器选择波长，并为波长锁定器提供信道选择和反馈。滤波器可以用作分立元件或与循环器，波长锁存器和增益介质组合使用。滤波器可以全部或部分地实现为增益介质的一部分。可调谐滤波器具有紧凑的外形尺寸并且精确调谐到包括波长网格的预定波长组的任何选定波长。因此，可调谐滤波器可以用于电信应用中，以产生ITU或其他光栅上的任何信道的中心波长。

2. 发明授权

US06600760B1 Method and apparatus for tuning a laser 有权
标题翻译：用于调谐激光的方法和装置
公开(公告)号：US06600760B1
公开(公告)日：2003-07-29
申请号：US09626537
申请日：2000-07-27
申请人： Evan D. H. Green , William B. Chapman
发明人： Evan D. H. Green , William B. Chapman
IPC分类号： H01S310
CPC分类号： H01S5/141 , G02B5/281 , G02B5/284 , G02B6/29358 , G02B6/29395 , G02B6/29398 , G02B6/4204 , G02B26/002 , G02B26/007 , H01S3/1062 , H01S5/02248 , H01S5/02284 , H01S5/0687 , H04J14/02
摘要： The present invention provides a continuously tunable external cavity laser (ECL) with a compact form factor and precise tuning to a selected center wavelength of a selected wavelength grid. The ECL may thus be utilized in telecom applications to generate the center wavelengths for any channel on the ITU or other optical grid. The ECL does not require a closed loop feedback. A novel tuning mechanism is disclosed which provides for electrical or mechanical tuning to a known position or electrical parameter, e.g., voltage, current or capacitance, with the required precision in the selected center wavelength arising as a result of a novel arrangement of a grid generator and a channel selector. The grid generator exhibits first pass bands which correspond to the spacing between individual channels of the selected wavelength grid and a finesse which suppresses side band modes of the laser. The channel selector exhibits second pass bands differing from the first transmission bands by an amount corresponding substantially inversely with the number of channels of the selected wavelength grid. This relationship allows “vernier” tuning of the output wavelength of the laser to a selected wavelength on the wavelength grid. The finesse of the grid generator and channel selector is chosen to suppress channels adjacent to the selected channel. In an alternate embodiment of the invention a gain medium operable as a grid generator is disclosed. In an alternate embodiment of the invention a method for tuning a laser is disclosed.
摘要翻译：本发明提供了一种具有紧凑形状因数的可调谐的外腔激光器（ECL），并且精确地调谐到所选择的波长网格的选定的中心波长。因此，ECL可以用于电信应用中以产生ITU或其他光网格上的任何信道的中心波长。 ECL不需要闭环反馈。公开了一种新颖的调谐机构，其提供对已知位置或电参数（例如电压，电流或电容）的电或机械调谐，其中所选择的中心波长的所需精度是由于电网发生器的新颖布置而产生的和频道选择器。栅格发生器呈现出对应于所选波长栅格的各个通道之间的间隔的第一通过带和抑制激光器的边带模式的精细度。信道选择器具有与第一传输带不同的第二通带，其量与所选择的波长网格的信道数量基本相反。这种关系允许将激光器的输出波长的“游标”调谐到波长网格上的选定波长。选择电网发生器和信道选择器的精细度来抑制与所选信道相邻的信道。在本发明的替代实施例中，公开了可用作电网发生器的增益介质。在本发明的替代实施例中，公开了一种用于调谐激光器的方法。

3. 发明授权

US06470120B2 Method and apparatus for aligning fiber optics with optical elements 失效
标题翻译：将光纤与光学元件对准的方法和设备
公开(公告)号：US06470120B2
公开(公告)日：2002-10-22
申请号：US09736789
申请日：2000-12-13
申请人： Evan D. H. Green , Manish Sharma
发明人： Evan D. H. Green , Manish Sharma
IPC分类号： G02B626
CPC分类号： G02B6/3843 , G02B6/4204 , G02B6/422 , G02B6/4225 , G02B6/4226 , G02B6/4227
摘要： Apparatus and associated method for aligning optical components including lenses, filters, lasers, fiber optics, etc. The apparatus aligns a first optic element and a second optic element and includes a frame and a sleeve. The frame defines a frame bore along a longitudinal axis thereof. The sleeve defines an eccentric bore configured to contain the first optic element or the second optic element. The sleeve is rotatably coupled in the frame bore to align the first optic element with the second optic element in a plane intersected by the longitudinal axis.
摘要翻译：用于对准包括透镜，滤光器，激光器，光纤等的光学部件的装置和相关方法。该装置对准第一光学元件和第二光学元件，并且包括框架和套筒。框架沿其纵向轴线限定框架孔。套筒限定了配置成容纳第一光学元件或第二光学元件的偏心孔。套筒可旋转地联接在框架孔中，以将第一光学元件与第二光学元件对准在与纵向轴线相交的平面中。

4. 发明授权

US06888856B2 Method and apparatus for filtering an optical beam 失效
公开(公告)号：US06888856B2
公开(公告)日：2005-05-03
申请号：US10087728
申请日：2002-02-28
申请人： Evan D. H. Green , William B. Chapman
发明人： Evan D. H. Green , William B. Chapman
IPC分类号： G02B5/28 , G02B6/34 , G02B7/00 , G02B26/00 , H01S5/022 , H01S5/0687 , H01S5/14 , H04J14/02 , H01S3/98
CPC分类号： H01S5/141 , G02B5/281 , G02B5/284 , G02B6/29358 , G02B6/29361 , G02B6/29395 , G02B26/002 , G02B26/007 , H01S3/1062 , H01S5/02248 , H01S5/02284 , H01S5/0687 , H04J14/02
摘要： The invention pertains to wavelength-agile optical filters suitable for wavelength-division-multiplexed (WDM) optical communications networks. More particularly, the invention pertains to optical filters with a wavelength reference that can be remotely switched to arbitrarily selectable channels on a standard grid, and to re-configurable optical communications networks employing same. The present invention provides a communication apparatus with a tunable filter which may be used in a wide range of applications including tuning an external cavity laser (ECL), selecting a wavelength for an add/drop multiplexer and providing channel selection and feedback for a wavelength locker. The filter may be utilized as a discrete component or in combination with circulators, wavelength lockers and gain medium. The filter may be implemented in whole or in part as part of a gain medium. The tunable filter exhibits a compact form factor and precise tuning to any selected wavelength of a predetermined set of wavelengths comprising a wavelength grid. The tunable filter may thus be utilized in telecom applications to generate the center wavelengths for any channel on the ITU or other optical grid.

5. 发明授权

US06526071B1 Tunable laser transmitter with internal wavelength grid generators 失效
标题翻译：具有内部波长网格发生器的可调谐激光发射器
公开(公告)号：US06526071B1
公开(公告)日：2003-02-25
申请号：US09507557
申请日：2000-02-18
申请人： Paul Zorabedian , William B. Chapman , Evan D. H. Green , Michael Y. Jenq
发明人： Paul Zorabedian , William B. Chapman , Evan D. H. Green , Michael Y. Jenq
IPC分类号： H01S310
CPC分类号： H01S5/141 , H01S3/1062 , H01S5/02248 , H01S5/02284 , H01S5/0617 , H01S5/0622 , H01S5/0687 , H01S5/4087
摘要： The present invention provides a continuously tunable external cavity laser (ECL) with a compact form factor and precise tuning to a selected center wavelength of a selected wavelength grid. The ECL may thus be utilized in telecom applications to generate the center wavelengths for any channel on the ITU or other optical grid. The ECL does not require a closed loop feedback. A novel tuning mechanism is disclosed which provides for electrical or mechanical tuning to a known position or electrical parameter, e.g., voltage, current or capacitance, with the required precision in the selected center wavelength arising as a result of a novel arrangement of a grid generator and a channel selector. The grid generator exhibits first pass bands which correspond to the spacing between individual channels of the selected wavelength grid and a finesse which suppresses side band modes of the laser. The channel selector exhibits second pass bands that are wider than the first pass bands. In an embodiment of the invention the second pass bands have a periodicity substantially corresponding with the separation between the shortest wavelength channel and the longest wavelength channel of the selected wavelength grid and a finesse which suppresses channels adjacent to the selected channel. The broad second pass bands of the channel selector reduce the sensitivity of the ECL to tuning variations about the selected channel, thus avoiding the requirement of a closed loop feedback system to control the channel selector.
摘要翻译：本发明提供了一种具有紧凑形状因数的可调谐的外腔激光器（ECL），并且精确地调谐到所选择的波长网格的选定的中心波长。因此，ECL可以用于电信应用中以产生ITU或其他光网格上的任何信道的中心波长。 ECL不需要闭环反馈。公开了一种新颖的调谐机构，其提供对已知位置或电参数（例如电压，电流或电容）的电或机械调谐，其中所选择的中心波长的所需精度是由于电网发生器的新颖布置而产生的和频道选择器。栅格发生器呈现出对应于所选波长栅格的各个通道之间的间隔的第一通过带和抑制激光器的边带模式的精细度。通道选择器呈现比第一通带宽的第二通带。在本发明的一个实施例中，第二通带具有基本对应于所选择的波长网格的最短波长信道和最长波长信道之间的间隔的周期性，以及抑制与所选择的信道相邻的信道的精细度。频道选择器的宽的第二通频带降低了ECL对所选频道调谐变化的灵敏度，从而避免了闭环反馈系统控制频道选择器的要求。

6. 发明授权

US06987626B2 Vibration monitoring in optical and opto-electronic beam guiding systems 失效
标题翻译：光电子束导光系统的振动监测
公开(公告)号：US06987626B2
公开(公告)日：2006-01-17
申请号：US10394369
申请日：2003-03-20
申请人： Evan D. H. Green
发明人： Evan D. H. Green
IPC分类号： G02B7/02
CPC分类号： G02B27/646
摘要： An optical component mount with beam deviation monitoring and beam guiding system using such optical component mounts. The optical component mount has a location for mounting an optical element thereon for operating on the beam and at least one sensor attached to the optical mount at a predetermined position to at least one mode of the optical component mount. The predetermined position is selected depending on the state of the optical component mount. The state can be, e.g., a vibrational state or a thermal expansion state. The predetermined position is chosen near or at an anti-node of at least one mode contributing to the state. The state of the optical mount is determined based on the signals obtained from the at least one sensor, which can be an accelerometer in the case of monitoring a vibrational state or a temperature sensor in the case of monitoring a thermal expansion state.
摘要翻译：具有光束偏移监测的光学部件安装件和使用这种光学部件安装件的光束引导系统。光学部件安装件具有用于将其上的光学元件安装在其上的位置，以及在光学部件安装件的至少一个模式的预定位置处附接到光学安装座的至少一个传感器。根据光学部件安装件的状态选择预定位置。该状态可以是例如振动状态或热膨胀状态。选择在有助于该状态的至少一个模式的反节点附近或者在其上的预定位置。基于从监视热膨胀状态的情况下的监视振动状态的情况下的加速度计和至少一个传感器获得的信号来确定光学基座的状态。

7. 发明授权

US06331892B1 Interferometer for monitoring wavelength in an optical beam 失效
标题翻译：用于监测光束中的波长的方法和装置
公开(公告)号：US06331892B1
公开(公告)日：2001-12-18
申请号：US09418952
申请日：1999-10-15
申请人： Evan D. H. Green
发明人： Evan D. H. Green
IPC分类号： G01B902
CPC分类号： G01J9/0246
摘要： An interferometer and related methods for wavelength monitoring are disclosed. The interferometer may be used for the wavelength monitoring or as part of a wavelength feedback and control circuit for an optical signal source. The device operates by creating an output beam on which constructive and destructive optical interference may be detected. The optical interference is generated by a monochromatic beam split into a first beam traversing a stationary path and a second beam traversing a path of variable length. The first and second beams are then recombined to create constructive/destructive interference which may be measured by a detector and correlated with a processor to determine the output wavelength of the optical source. The maximum and minimum of the variable path length are precisely controlled due to use of a micro-positionable semiconductor retroreflector or mirror. Using the known oscillations of the retroreflector measured along the path of the second beam, the wavelength of optical signal source can be precisely and repetitively determined during each oscillation of the retroreflector.
摘要翻译：公开了一种用于波长监测的干涉仪和相关方法。干涉仪可以用于波长监测，或者用作光信号源的波长反馈和控制电路的一部分。该装置通过产生可以在其上检测到建设性和破坏性的光学干涉的输出光束进行工作。光学干涉由分离成穿过静止路径的第一光束的单色光束和穿过可变长度的路径的第二光束产生。然后将第一和第二光束重新组合以产生可能由检测器测量并与处理器相关联以确定光源的输出波长的建构性/相消干涉。可变路径长度的最大值和最小值由于使用微型定位半导体后向反射镜或反射镜而被精确地控制。使用沿着第二光束的路径测量的后向反射器的已知振荡，可以在后向反射器的每个振荡期间精确地和重复地确定光信号源的波长。

8. 发明授权

US5536964A Combined thin film pinhole and semiconductor photodetectors 失效
标题翻译：组合薄膜针孔和半导体光电探测器
公开(公告)号：US5536964A
公开(公告)日：1996-07-16
申请号：US315835
申请日：1994-09-30
申请人： Evan D. H. Green , Tario M. Haniff , Albert K. Hu
发明人： Evan D. H. Green , Tario M. Haniff , Albert K. Hu
IPC分类号： H01L27/144 , H01L31/02 , H01L31/0232
CPC分类号： H01L27/1443 , H01L27/1446 , H01L31/02024 , Y10S438/928 , Y10S438/977
摘要： A thin-film semiconductor pinhole component with monolithically integrated position-sensing photodetectors is herein referred to as a Position Sensitive Pinhole (PSP). Another embodiment is also discussed where a PSP is integrated onto a platform with controllable motion and is herein referred to as a Movable Position Sensitive Pinhole (MPSP). A third embodiment describes the MPSP with capacitive, electrostatic actuation incorporated into the device to achieve controlled motion, herein referred to as a Capacitively Actuated Movable Position Sensitive Pinhole (CAMPSP). Each of those embodiments of the present invention are discussed, as are their method of manufacture and use in a laser environment as a spatial filter.
摘要翻译：具有单片集成位置感测光电探测器的薄膜半导体针孔组件在本文中称为位置敏感针孔（PSP）。还讨论了其中PSP集成到具有可控运动的平台上的另一实施例，并且在本文中称为可移动位置敏感针孔（MPSP）。第三实施例描述了具有并入设备中的电容性静电致动器以实现受控运动的MPSP，这里称为电容式致动可动位置敏感针孔（CAMPSP）。讨论了本发明的这些实施例中的每一个，以及它们在激光环境中的制造和使用方法作为空间滤波器。

9. 发明授权

US5698453A Combined semiconductor thin film pinhole and semiconductor photodetectors and method of manufacture 失效
标题翻译：组合半导体薄膜针孔和半导体光电探测器及其制造方法
公开(公告)号：US5698453A
公开(公告)日：1997-12-16
申请号：US668085
申请日：1996-06-19
申请人： Evan D. H. Green , Tario M. Haniff , Albert K. Hu
发明人： Evan D. H. Green , Tario M. Haniff , Albert K. Hu
IPC分类号： H01L27/144 , H01L31/02 , H01L27/14
CPC分类号： H01L27/1443 , H01L27/1446 , H01L31/02024 , Y10S438/928 , Y10S438/977
摘要： A thin-film semiconductor pinhole component with monolithically integrated position-sensing photodetectors is herein referred to as a Position Sensitive Pinhole (PSP). Another embodiment is also discussed where a PSP is integrated onto a platform with controllable motion and is herein referred to as a Movable Position Sensitive Pinhole (MPSP). A third embodiment describes the MPSP with capacitive, electrostatic actuation incorporated into the device to achieve controlled motion, herein referred to as a Capacitively Actuated Movable Position Sensitive Pinhole (CAMPSP). Each of those embodiments of the present invention are discussed, as are their method of manufacture and use in a laser environment as a spatial filter.
摘要翻译：具有单片集成位置感测光电探测器的薄膜半导体针孔组件在本文中称为位置敏感针孔（PSP）。还讨论了其中PSP集成到具有可控运动的平台上的另一实施例，并且在本文中称为可移动位置敏感针孔（MPSP）。第三实施例描述了具有并入设备中的电容性静电致动器以实现受控运动的MPSP，这里称为电容式致动可动位置敏感针孔（CAMPSP）。讨论了本发明的这些实施例中的每一个，以及它们在激光环境中的制造和使用方法作为空间滤波器。

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