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1. 发明申请

US20110049335A1 ELECTRICAL TERMINATION CIRCUIT FOR A TRAVELING-WAVE OPTOELECTRONIC DEVICE 有权
标题翻译：用于行波波导光电装置的电气终端电路
公开(公告)号：US20110049335A1
公开(公告)日：2011-03-03
申请号：US12859735
申请日：2010-08-19
申请人： Brian Higgins , Gregory J. McBrien
发明人： Brian Higgins , Gregory J. McBrien
IPC分类号： G01J1/46 , G02F1/035 , G02F1/03 , H01S3/097 , H01P1/22
CPC分类号： G02F1/0516 , G02F1/2255 , H01S5/042
摘要： An electrical termination circuit for a traveling wave optoelectronic device is disclosed. The electrical termination circuit is constructed to reflect a portion of a radio-frequency signal back into the optoelectronic device. The reflected signal is out of phase with the applied radio-frequency signal at a frequency of a detrimental spectral feature or a bump in an electro-optical transfer characteristic of the optoelectronic device. The amplitude and the phase of the reflected signal are selected so as to suppress the detrimental spectral feature without a significant reduction in the efficiency of electro-optical or optical-electrical transformation of the optoelectronic device.
摘要翻译：公开了一种用于行波光电子器件的终端电路。电终端电路被构造成将射频信号的一部分反射回光电器件。反射信号与施加的射频信号在光电子器件的电光转移特性中的有害光谱特征或凸块的频率处异相。选择反射信号的振幅和相位，以便抑制有害光谱特征，而不会显着降低光电子器件的电光或光电转换的效率。

2. 发明授权

US07783138B2 Free-space integrated photodetector with reduced phase tracking error 有权
标题翻译：自由空间集成光电探测器具有降低的相位跟踪误差
公开(公告)号：US07783138B2
公开(公告)日：2010-08-24
申请号：US12271154
申请日：2008-11-14
申请人： Roman T. Rowinski , Gregory J. McBrien , Karl Kissa , Eric Lim
发明人： Roman T. Rowinski , Gregory J. McBrien , Karl Kissa , Eric Lim
IPC分类号： G02F1/035
CPC分类号： G02F1/035 , G02F1/0123 , G02F2001/212 , G02F2201/58
摘要： A Mach-Zehnder (MZ) interferometer modulator structure for fiberoptic telecommunications is disclosed in which drift of the operating point can be monitored with a reduced phase tracking error. One or more components of free-space light radiated into the substrate of the MZ modulator are selectively detected with one or more photodetectors. Suitable summing circuits are described for nulling out undesired photocurrent contributions in the photodetector(s) from on-state and off-state light radiated from the MZ.
摘要翻译：公开了一种用于光纤电信的马赫 - 曾德（MZ）干涉仪调制器结构，其中可以以减小的相位跟踪误差监视工作点的漂移。用一个或多个光电检测器选择性地检测辐射到MZ调制器的衬底中的自由空间光的一个或多个成分。描述了合适的求和电路，用于在从MZ辐射的导通状态和截止状态的光下，消除光电探测器中的不期望的光电流贡献。

3. 发明申请

US20090232517A1 DITHERLESS OPTICAL MODULATOR CONTROL 有权
标题翻译：无差模光调制器控制
公开(公告)号：US20090232517A1
公开(公告)日：2009-09-17
申请号：US12402693
申请日：2009-03-12
申请人： Joseph P. FARINA , Gregory J. McBrien
发明人： Joseph P. FARINA , Gregory J. McBrien
IPC分类号： H04B10/04 , G02F1/01 , G02F1/21
CPC分类号： H04B10/50575 , H04B10/50572 , H04B10/50577 , H04B10/50593 , H04B10/50595 , H04B10/50597
摘要： A method of controlling the operating parameters of an optical modulator, without using a dither signal, is provided. Past operating parameters are compared to present operating parameters using a quality of modulation signal obtained by cross-correlating the data modulation signal used to drive the optical modulator with the modulated optical signal output from the optical modulator. The quality of modulation signal is used to optimize the operating parameters (e.g., bias point) of the optical modulator, or other operating parameters of the arrangement, such as the modulator drive level, timing alignment, etc.
摘要翻译：提供了一种控制光调制器的工作参数而不使用抖动信号的方法。将过去的操作参数与使用通过将用于驱动光调制器的数据调制信号与从光调制器输出的调制光信号相互相关而获得的调制信号的质量与当前工作参数进行比较。调制信号的质量用于优化光调制器的操作参数（例如，偏置点）或该装置的其它操作参数，例如调制器驱动电平，定时对准等。

4. 发明授权

US06646776B1 Suppression of high frequency resonance in an electro-optical modulator 有权
标题翻译：在电光调制器中抑制高频共振
公开(公告)号：US06646776B1
公开(公告)日：2003-11-11
申请号：US10065833
申请日：2002-11-23
申请人： Steve Cheung , Karl Kissa , Gregory J. McBrien
发明人： Steve Cheung , Karl Kissa , Gregory J. McBrien
IPC分类号： G02F103
CPC分类号： G02F1/2255 , G02F1/0356 , G02F2201/07 , G02F2201/12
摘要： The invention relates to apparatus and methods for suppressing high frequency resonance in an electro-optical device. The electro-optical device includes an optical waveguide formed in the upper surface of a substrate. The device further includes a plurality of electrically floating electrode segments that are positioned on the substrate to intensify an electric field in the optical waveguide. The device also includes a plurality of electrically grounded electrode segments that are positioned on the substrate for prohibiting modal conversion and propagation of high order modes in the plurality of electrically grounded electrode segments and in the plurality of electrically floating electrode segments, thereby suppressing modal coupling to the substrate. The device further includes a buffer layer formed on the upper surface of the substrate and a driving electrode formed on an upper surface of the buffer layer for receiving an RF signal that induces the electric field in the optical waveguide.
摘要翻译：本发明涉及用于抑制电光装置中高频共振的装置和方法。电光装置包括形成在基板的上表面中的光波导。该器件还包括多个电浮动电极段，其位于衬底上以加强光波导中的电场。该器件还包括多个电接地电极段，其位于衬底上，用于禁止在多个电接地电极段和多个电浮动电极段中的高阶模的模态转换和传播，从而抑制模式耦合底物。该器件还包括形成在衬底的上表面上的缓冲层和形成在缓冲层的上表面上的驱动电极，用于接收在光波导中引起电场的RF信号。

5. 发明授权

US5168534A Cascaded optic modulator arrangement 失效
标题翻译：级联光调制器布置
公开(公告)号：US5168534A
公开(公告)日：1992-12-01
申请号：US803818
申请日：1991-12-09
申请人： Gregory J. McBrien , James D. Farina
发明人： Gregory J. McBrien , James D. Farina
IPC分类号： G02B6/12 , G02F1/01 , G02F1/225
CPC分类号： G02F1/225 , G02B6/12004 , G02F1/0123 , G02F2203/19
摘要： A pair of interferometers, such as Mach-Zehnders, are disposed in a series arrangement in which a signal fed to an input of the first Mach-Zehnder is modulated by an optic modulator, the modulated signal is fed to an input of the second Mach-Zehnder and is modulated by a second optic modulator, the two optic modulators effectively being connected in a series or cascade arrangement. The phase offset of both modulators and the contrast of one modulator are adjusted to minimize both second and third order harmonics inherently generated by the modulation process of each modulator, thereby providing an improved linear response in the output signal of the second Mach-Zehnder.
摘要翻译：一对干涉仪如Mach-Zehnders以串联方式设置，其中馈送到第一Mach-Zehnder的输入端的信号被光调制器调制，调制信号被馈送到第二马赫 - Zehnder并且被第二光调制器调制，两个光调制器有效地以串联或级联方式连接。调整两个调制器的相位偏移和一个调制器的对比度以使由每个调制器的调制过程固有地产生的第二和第三阶谐波最小化，从而在第二马赫 - 曾德尔的输出信号中提供改进的线性响应。

6. 发明授权

US08050555B2 Optical phase modulator with monitoring structure 有权
标题翻译：具有监控结构的光相位调制器
公开(公告)号：US08050555B2
公开(公告)日：2011-11-01
申请号：US12250651
申请日：2008-10-14
申请人： Gregory J. McBrien
发明人： Gregory J. McBrien
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04B10/505 , G02F1/225 , G02F2001/212
摘要： The invention relates to an optical waveguide device that includes a waveguide phase modulator (WPM). A waveguide monitoring structure is coupled optically in parallel with the WPM so as to form a Mach-Zehnder interferometer therewith for producing monitor light indicative of a phase shift imparted by the WPM. The waveguide monitoring structure includes a first optical tap for tapping off a fraction of light entering the first WPM for providing first tapped-off light, a second optical tap for tapping off a fraction of light exiting the first WPM for providing second tapped off light, and an ancillary phase modulator for modulating the optical phase of the first or second tapped-off light so as to modulate the intensity of the monitor light in dependence upon the first phase shift. A feedback circuit controls the phase shift imparted by the WPM based on a modulation index of the monitor light.
摘要翻译：本发明涉及一种包括波导相位调制器（WPM）的光波导器件。波导监控结构与WPM并行光耦合，以形成Mach-Zehnder干涉仪，用于产生指示由WPM赋予的相移的监视光。波导监视结构包括：第一光学抽头，用于抽出进入第一WPM的一部分光以提供第一分接光;第二光学分接头，用于抽出离开第一WPM的一部分光以提供第二抽头光; 以及辅助相位调制器，用于调制第一或第二分接光的光学相位，以便根据第一相移来调制监视光的强度。反馈电路基于监视光的调制指数来控制由WPM施加的相移。

7. 发明授权

US06580840B1 High efficiency electro-optic modulator with equalized frequency response 有权
标题翻译：具有均衡频率响应的高效率电光调制器
公开(公告)号：US06580840B1
公开(公告)日：2003-06-17
申请号：US09668401
申请日：2000-09-22
申请人： Gregory J McBrien , Karl M. Kissa , Timothy U. Horton
发明人： Gregory J McBrien , Karl M. Kissa , Timothy U. Horton
IPC分类号： G02F1035
CPC分类号： G02F1/2255 , G02F1/0316 , G02F1/0327 , G02F1/0356 , G02F2001/212
摘要： A high-efficiency electro-optic modulator with an equalized frequency response is described. The modulator includes an optical waveguide formed in an electro-optic material that propagates an optical signal along a first direction of propagation. An electrical waveguide is formed on the electro-optic material and positioned generally co-linear relative to the optical waveguide and in electromagnetic communication with the optical waveguide. The geometry of the electrical waveguide is selected to achieve a modulation efficiency at a frequency in a bandwidth of a digital spectrum. A compensation network is electrically coupled to the electrical waveguide at a junction. The compensation network reduces an electro-optic response of the electro-optic modulator below the mean frequency bandwidth of the digital spectrum, thereby causing an increase of the electro-optic response above the mean frequency of the digital spectrum.
摘要翻译：描述了具有均衡频率响应的高效电光调制器。调制器包括形成在电光材料中的光波导，其沿着第一传播方向传播光信号。电波导形成在电光材料上并且相对于光波导大致共线并且与光波导电磁通信。选择电波导的几何形状以在数字频谱的带宽中的频率处实现调制效率。补偿网络在连接处电耦合到电波导。补偿网络将电光调制器的电光响应降低到数字频谱的平均频带宽度以下，从而导致高于数字频谱的平均频率的电光响应的增加。

8. 发明授权

US06449080B1 Electro-optic modulator with enhanced bias stability 有权
标题翻译：具有增强的偏置稳定性的电光调制器
公开(公告)号：US06449080B1
公开(公告)日：2002-09-10
申请号：US09520874
申请日：2000-03-08
申请人： Gregory J. McBrien , Thomas Joseph Gryk , Karl M. Kissa , Ed Wooten , Russell Fuerst
发明人： Gregory J. McBrien , Thomas Joseph Gryk , Karl M. Kissa , Ed Wooten , Russell Fuerst
IPC分类号： G02F103
CPC分类号： G02F1/2255 , G02F2203/21
摘要： A co-planar waveguide interferometric electro-optic modulator that reduces the bias point sensitivity of the modulator to ambient temperature and to applied RF is described. The modulator includes a first and second waveguide that are formed in an electro-optic substrate. A RF electrode is positioned on the electro-optic substrate between the first and the second waveguide. A ground electrode that may include a slot is positioned proximate to the second waveguide. A guard ground electrode is positioned proximate to the first waveguide to sink heat from the RF electrode and may also balance the thermal stress in the two waveguides. A dielectric material may also be positioned proximate to the first waveguide to balance the thermal stress in the two waveguides.
摘要翻译：描述了将调制器的偏置点灵敏度降低到环境温度和施加的RF的共平面波导干涉电光调制器。调制器包括形成在电光基板中的第一和第二波导。 RF电极位于第一和第二波导之间的电光基板上。可以包括槽的接地电极定位成靠近第二波导。保护接地电极定位成靠近第一波导以吸收来自RF电极的热量，并且还可以平衡两个波导中的热应力。绝缘材料也可以被定位成靠近第一波导以平衡两个波导中的热应力。

9. 发明授权

US06181456B2 Method and apparatus for stable control of electrooptic devices 有权
标题翻译：电光装置稳定控制的方法和装置
公开(公告)号：US06181456B2
公开(公告)日：2001-01-30
申请号：US09282955
申请日：1999-04-01
申请人： Gregory J. McBrien , Karl M. Kissa , Daniel J. Fritz
发明人： Gregory J. McBrien , Karl M. Kissa , Daniel J. Fritz
IPC分类号： G02F103
CPC分类号： G02F1/0123 , G02F1/0147 , G02F2203/21
摘要： Method and apparatus are disclosed for the stable control of electrooptic devices, such as for providing a stable bias point for operation of a lithium niobate interferometer-type modulator. The bias point of the modulator is thermally controlled by providing a selected difference in the temperatures of optical waveguide lengths of the interferometer. Heaters can be disposed with the lithium niobate substrate for transferring thermal energy with the optical waveguide lengths. A thermally conductive element can be disposed adjacent the optical waveguide lengths to act as “heat spreaders” to facilitate providing the selected difference in temperature. The invention also includes phase shifters, attenuators, and other optical devices formed from single and multiple optical waveguide lengths propagating separate optical beams.
摘要翻译：公开了用于电光装置的稳定控制的方法和装置，例如为铌酸锂干涉仪型调制器的操作提供稳定的偏置点。通过在干涉仪的光波导长度的温度上提供选定的差异来对调制器的偏置点进行热控制。加热器可与铌酸锂基板一起设置，以便用光波导长度传递热能。导热元件可以设置在光波导长度附近以用作“散热器”，以便于提供所选择的温差。本发明还包括由传播分离的光束的单个和多个光波导长度形成的移相器，衰减器和其它光学器件。

10. 发明授权

US5327279A Apparatus for linearization of optic modulators using a feed-forward predistortion circuit 失效
标题翻译：使用前馈预失真电路线性化光学调制器的装置
公开(公告)号：US5327279A
公开(公告)日：1994-07-05
申请号：US916233
申请日：1992-07-17
申请人： James D. Farina , Gregory J. McBrien
发明人： James D. Farina , Gregory J. McBrien
IPC分类号： H04B10/155 , H04B10/04
CPC分类号： H04B10/50593 , H04B10/505 , H04B10/58
摘要： A feed-forward predistortion circuit to provide improved linear response in optic modulators. The circuit includes a non-linear element, an amplifier/delay means and a power combiner. The non-linear element generates a first signal sin(X), where (X) is the input signal. The amplifier/delay means generates a second signal 2(X). The first and second signals are combined in the power combiner to produce a modulating signal 2(X)-sin(X) which is fed to an optic modulator. The modulating signal 2(X)-sin(X) compensates for the transfer function of the optic modulator which has a transfer function sin(X), thereby producing a linear output.
摘要翻译：一种前馈预失真电路，用于在光学调制器中提供改进的线性响应。电路包括非线性元件，放大器/延迟装置和功率组合器。非线性元件产生第一信号sin（X），其中（X）是输入信号。放大器/延迟装置产生第二信号2（X）。在功率组合器中组合第一和第二信号以产生馈送到光调制器的调制信号2（X）-sin（X）。调制信号2（X）-sin（X）补偿具有传递函数sin（X）的光调制器的传递函数，从而产生线性输出。

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