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1. 发明授权

EP1142038B1 CONTROL FOR PIEZOELECTRIC ACTUATOR 有权
标题翻译：用于控制压电致动器
公开(公告)号：EP1142038B1
公开(公告)日：2008-06-11
申请号：EP00991922.6
申请日：2000-11-03
申请人： New Focus, Inc.
发明人： PEASE, John , CABATIC, Sherwin, D. , MELVIN, Dennis, E.
IPC分类号： H01L41/04
CPC分类号： H02N2/101 , H02N2/0095 , H02N2/145
摘要： A method and apparatus for controlling a piezo-electric actuator coupled to a driven member is disclosed. The piezo-electric actuator (212) is responsive to waveforms (2040, 204) with asymmetrical voltage/current profiles on the rising and falling edge to effect consistent and cumulative movement of the driven member in one of two directions throughout the reciprocations of the piezo-electric actuator. The waveforms are digitally generated from a stored set of numbers or a function for generating the set of numbers. The numbers correspond with the discrete digital values associated with the desired waveforms for moving the driven member in either of at least two directions. The controller may be used to drive more than one piezo-electric actuator. The controller may include responsiveness to a feedback of the position of the driven member to accurately position the driven member. The controller may also include the ability to update the function or values stored in memory so as to couple more efficiently with the new or existing actuators.

2. 发明公开

EP1149443A4 TUNABLE LASER 审中-公开
标题翻译： ABSTIMMBARER LASER
公开(公告)号：EP1149443A4
公开(公告)日：2006-03-22
申请号：EP99948194
申请日：1999-09-09
申请人： NEW FOCUS INC
发明人： DAY TIMOTHY , TUGANOV ALEXANDER V , WU I-FAN , PEASE JOHN , FARINAS ALEJANDRO D , ARNONE DAVID F , REITER KENNETH C , BROWNELL MICHAEL , CARNEY ROBERT A , MOORE BRUCE A
IPC分类号： H01S3/10 , H01S5/0687 , H01S3/105 , H01S3/1055 , H01S3/13 , H01S3/139 , H01S5/022 , H01S5/042 , H01S5/06 , H01S5/062 , H01S5/068 , H01S5/0683 , H01S5/14
CPC分类号： H01S5/02248 , H01S3/105 , H01S3/1055 , H01S5/0427 , H01S5/0617 , H01S5/06213 , H01S5/06804 , H01S5/06832 , H01S5/0687 , H01S5/1039 , H01S5/141 , H01S5/143
摘要： The present invention provides an optical multimeter (100) for use in calibrating and testing optical components. The optical multimeter (100) includes an analog/digital signal generator (250) for delivering an output beam (260) over a wide range of frequencies, duty cycles and amplitudes. Circuitry is also provided for modulation (222) of an analog signal onto the output. The signal generator (250) includes a tunable laser that is thermally stabilized as to optical path length, as well as tuning angle of the tuning element. The tunable laser exhibits a small form factor due in part to a novel wavelength control process which utilizes an open loop system to maintain precise output wavelength (260) control without the requirement of either a wavelength or position feedback device. Additionally, the tunable laser incorporates an inexpensive modulator circuit (222) which combines a low frequency closed loop power control with a separate digital modulator.
摘要翻译：本发明提供了用于校准和测试光学部件的光学万用表（100）。光学万用表（100）包括用于在宽范围的频率，占空比和幅度上传送输出光束（260）的模拟/数字信号发生器（250）。电路还被提供用于将模拟信号调制（222）到输出端上。信号发生器（250）包括可调谐激光器，该可调谐激光器关于光路长度以及调谐元件的调谐角度被热稳定。可调谐激光器呈现小型化因素，部分原因在于新颖的波长控制过程，其利用开环系统来保持精确的输出波长（260）控制而不需要波长或位置反馈设备。另外，可调谐激光器结合了低成本的调制器电路（222），其将低频闭环功率控制与单独的数字调制器组合。

3. 发明公开

EP1153463A1 TUNABLE LASER TRANSMITTER WITH INTERNAL WAVELENGTH GRID GENERATORS 审中-公开
标题翻译：具有内部波长栅格生产者可调谐激光全站仪
公开(公告)号：EP1153463A1
公开(公告)日：2001-11-14
申请号：EP00917645.4
申请日：2000-02-18
申请人： New Focus, Inc.
发明人： ZORABEDIAN, Paul , CHAPMAN, William, B. , GREEN, Evan, D., H. , JENQ, Michael, Y.
IPC分类号： H01S3/10
CPC分类号： H01S5/141 , H01S3/1055 , H01S3/1062 , H01S5/02248 , H01S5/02284 , H01S5/0617 , 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 (226) and a channel selector (262). The grid generator (226) exhibits first pass bands which correspond to the spacing between the individual channels of the selected wavelength grid and a fineness which suppresses side band modes of the laser. The channel selector (262) 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 (262).

4. 发明公开

EP1142038A1 CONTROL FOR PIEZOELECTRIC ACTUATOR 有权
标题翻译：用于控制压电致动器
公开(公告)号：EP1142038A1
公开(公告)日：2001-10-10
申请号：EP00991922.6
申请日：2000-11-03
申请人： New Focus, Inc.
发明人： PEASE, John , CABATIC, Sherwin, D. , MELVIN, Dennis, E.
IPC分类号： H01L41/00
CPC分类号： H02N2/101 , H02N2/0095 , H02N2/145
摘要： A method and apparatus for controlling a piezo-electric actuator coupled to a driven member is disclosed. The piezo-electric actuator (212) is responsive to waveforms (2040, 204) with asymmetrical voltage/current profiles on the rising and falling edge to effect consistent and cumulative movement of the driven member in one of two directions throughout the reciprocations of the piezo-electric actuator. The waveforms are digitally generated from a stored set of numbers or a function for generating the set of numbers. The numbers correspond with the discrete digital values associated with the desired waveforms for moving the driven member in either of at least two directions. The controller may be used to drive more than one piezo-electric actuator. The controller may include responsiveness to a feedback of the position of the driven member to accurately position the driven member. The controller may also include the ability to update the function or values stored in memory so as to couple more efficiently with the new or existing actuators.

5. 发明公开

EP1129513A1 CONTINUOUSLY-TUNABLE EXTERNAL CAVITY LASER 审中-公开
标题翻译：连续可调谐外腔式激光器
公开(公告)号：EP1129513A1
公开(公告)日：2001-09-05
申请号：EP99952013.3
申请日：1999-10-15
申请人： New Focus, Inc.
发明人： ZORABEDIAN, Paul , CHAPMAN, William, B. , JENQ, Michael, Y.
IPC分类号： H01S3/10
CPC分类号： H01S5/141 , H01S3/1062 , H01S5/02248 , 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. A novel interference filter which may be used to tune the ECL provides an absence of mode-hopping and reduced feedback from both spurious interference (210) and reflections (214) in the external cavity. A novel tuning mechanism is disclosed which provides for mechanical FM tuning of a wide range ECL tuning elements such as an interference filter, a diffraction element and a retroreflector (122). A novel feedback circuit is disclosed which provides closed loop feedback for selecting output wavelength in a laser.

6. 发明公开

EP0595833A1 DEVICE FOR CENTERING ROUND ARTICLES 失效
标题翻译：定心圆形物体。
公开(公告)号：EP0595833A1
公开(公告)日：1994-05-11
申请号：EP92913089.0
申请日：1992-05-08
申请人： NEW FOCUS, INC.
发明人： LUECKE, Francis, S.
IPC分类号： B25J15 , G02B7
CPC分类号： B25J15/103 , Y10S294/902
摘要： Un dispositif de support (10) pour des articles circulaires centrés (A) comprend une structure (12) pourvue d'un premier bras (14) et d'un second bras (16) fixés pivotants à la structure. Le premier bras présente un point de contact unique (18) au niveau de son extrémité distale alors que le second bras comprend une paire de surfaces divergentes (20, 22) au niveau de son extrémité distale. Les deux bras sont mécaniquement couplés de façon à tourner tout en maintenant une position fixe l'un par rapport à l'autre, et les surfaces incurvées du second bras sont profilées de façon particulière de sorte que des articles circulaires maintenus par les deux bras seront centrés en un endroit fixe par rapport à la structure de support.

7. 发明公开

EP0566660A4 IMPROVED OPTICAL MOUNTING APPARATUS 失效
标题翻译：改进的光学安装设备
公开(公告)号：EP0566660A4
公开(公告)日：1993-11-18
申请号：EP92904119
申请日：1992-01-03
申请人： NEW FOCUS, INC.
发明人： LUECKE, FRANCIS, S.
IPC分类号： G02B7/00 , G02B7/02 , G02B7/182
CPC分类号： G02B7/004 , G02B7/1825

8. 发明公开

EP1142038A4 CONTROL FOR PIEZOELECTRIC ACTUATOR 有权
标题翻译：用于控制压电致动器
公开(公告)号：EP1142038A4
公开(公告)日：2005-10-19
申请号：EP00991922
申请日：2000-11-03
申请人： NEW FOCUS INC
发明人： PEASE JOHN , CABATIC SHERWIN D , MELVIN DENNIS E
IPC分类号： H01L41/04 , H02N2/06 , H02N2/10 , H02N2/14
CPC分类号： H02N2/101 , H02N2/0095 , H02N2/145
摘要： A method and apparatus for controlling a piezo-electric actuator coupled to a driven member is disclosed. The piezo-electric actuator (212) is responsive to waveforms (2040, 204) with asymmetrical voltage/current profiles on the rising and falling edge to effect consistent and cumulative movement of the driven member in one of two directions throughout the reciprocations of the piezo-electric actuator. The waveforms are digitally generated from a stored set of numbers or a function for generating the set of numbers. The numbers correspond with the discrete digital values associated with the desired waveforms for moving the driven member in either of at least two directions. The controller may be used to drive more than one piezo-electric actuator. The controller may include responsiveness to a feedback of the position of the driven member to accurately position the driven member. The controller may also include the ability to update the function or values stored in memory so as to couple more efficiently with the new or existing actuators.

9. 发明公开

EP1325383A1 OPTICAL ISOLATOR WITH LOW INSERTION LOSS AND MINIMIZED POLARIZATION MODE DISPERSION 有权
标题翻译：具有低插入损耗和最小化的偏振模色散光隔离
公开(公告)号：EP1325383A1
公开(公告)日：2003-07-09
申请号：EP01986774.6
申请日：2001-10-05
申请人： New Focus, Inc.
发明人： HUANG, Yonglin , XIE, Ping , LUO, Xin , DU, Liren
IPC分类号： G02F1/09
CPC分类号： G02F1/093 , G02F2203/06 , Y10S359/90 , Y10S372/703
摘要： An optical isolator (200) comprises a first birefringent wedge (206) configured to refract incident light into an o-ray and e-ray, a rotator (208) configured to rotate the polarization planes of the o-ray and e-ray, a second birefringent wedge (210) and a correction element (212) of birefringent material. The lengh and the orientation of the optic axis of the correction element are chosen to compensate for first oder polarization mode dispersion, that is differential group delay, and walk-off introduced by the first and second polarizers.

10. 发明公开

EP1252493A1 REAL TIME PROCESS CONTROL OF OPTICAL COMPONENTS USING LINEARLY SWEPT TUNABLE LASER 审中-公开
标题翻译：光学部件的实时过程控制使用线性扫描可调激光器
公开(公告)号：EP1252493A1
公开(公告)日：2002-10-30
申请号：EP01908732.9
申请日：2001-01-29
申请人： New Focus, Inc.
发明人： WIPPICH, Mark , SMOLKA, Grogory, L. , HAND, Carter, F. , SHINE, Robert, John, Jr.
IPC分类号： G01M11/00
CPC分类号： G01M11/33 , G01M11/00
摘要： A system and method for real time process control, using a linearly swept tunable laser, which allows high speed in-situ monitoring and control of wavelength-specific properties of optical components. The invention comprises scanning an optical component with a high speed, high linearity tunable laser, and detecting optical output from the component during the scanning. Preferably, the invention also includes adjusting or controlling the optical properties of the component during scanning, according to detected optical output from the component. The invention is embodied in a process control system comprising a high speed, high linearity, tunable laser operatively coupled to an optical component which in turn is operatively coupled to an optical detector. A system control processor is operatively coupled to the tunable laser and detector. A processing control unit is associated with the optical component and is operatively coupled to the system control processor. In operation, the optical component is scanned by the tunable laser, and real time process control of one or more wavelength specific properties of the optical component may be carried out according to feedback from the optical detector and process control unit.

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