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81. 发明授权

US5796765A Optical pulse seqeunce generator 失效
标题翻译：光脉冲发生器
公开(公告)号：US5796765A
公开(公告)日：1998-08-18
申请号：US617868
申请日：1996-03-25
申请人： Julian Kazimirez Lucek , Kevin Smith
发明人： Julian Kazimirez Lucek , Kevin Smith
IPC分类号： H01S3/06 , G02F1/35 , G02F2/00 , H01S3/00 , H01S3/067 , H01S3/083 , H01S3/098 , H01S5/00 , H01S5/04 , H01S5/06 , H01S5/50 , H04B10/145 , H04J14/08 , H04L7/00 , H04L7/04 , H01S3/10
CPC分类号： H01S3/1112 , G02F1/3517 , H01S3/06791 , H01S5/50 , H04B10/50 , H04J14/08 , H04L7/0075 , G02F1/3519 , G02F2002/006 , G02F2203/54 , H01S3/0057 , H01S3/083 , H01S3/10092 , H01S5/0057 , H01S5/041 , H01S5/0608 , H04J14/083 , H04L7/041
摘要： An optical pulse sequence is generated by applying a repetitive optical signal to an optical modulator connected in the laser cavity of a mode-locked laser. The pulse sequence in the laser cavity is then output. The repeat period of the repetitive optical signal is set to be equal to, or an integer multiple of, the cavity round-trip time. The laser is thereby driven to output pulses in bit positions corresponding to the non-zero pulses of the input repetitive optical signal. In one example, the output pulse sequence is used to control an optical switch to provide an OTDM programmable multiplexer using optical signals.
摘要翻译： PCT No.PCT / GB94 / 02239 Sec。 371日期：1996年3月25日 102（e）1996年3月25日PCT PCT 1996年6月24日PCT公布。出版物WO95 / 10870 日期1995年04月20日通过对连接在锁模激光器的激光腔中的光调制器应用重复的光信号来产生光脉冲序列。然后输出激光腔中的脉冲序列。重复光信号的重复周期被设置为等于空腔往返时间的整数倍。因此激光器被驱动以对应于输入重复光信号的非零脉冲的比特位置输出脉冲。在一个示例中，输出脉冲序列用于控制光开关以使用光信号提供OTDM可编程多路复用器。

82. 发明授权

US5754714A Semiconductor optical waveguide device, optical control type optical switch, and wavelength conversion device 失效
标题翻译：半导体光波导器件，光控制型光开关和波长转换器件
公开(公告)号：US5754714A
公开(公告)日：1998-05-19
申请号：US526384
申请日：1995-09-11
申请人： Nobuo Suzuki , Yuzo Hirayama
发明人： Nobuo Suzuki , Yuzo Hirayama
IPC分类号： G02F1/017 , G02F1/313 , G02F1/35 , G02F2/00 , H01S5/06 , H01S5/50 , G02F1/295
CPC分类号： B82Y20/00 , G02F2/004 , H01S5/0601 , G02F1/01708 , G02F1/01716 , G02F1/3133 , G02F1/3517 , H01S5/0602 , H01S5/0608 , H01S5/0609 , H01S5/0611 , H01S5/50 , H01S5/5054
摘要： A semiconductor optical waveguide device comprises a stripe-shaped semiconductor optical waveguide, part of the semiconductor optical waveguide being an active layer producing gain by electric current injection, and part of the semiconductor optical waveguide being an intra-band resonant absorption layer in which an intra-band absorption resonant wavelength is arranged within the gain band of the active layer, and means for injecting electric current into the active layer.
摘要翻译：半导体光波导器件包括条形半导体光波导，半导体光波导的一部分是通过电流注入产生增益的有源层，并且半导体光波导的一部分是带内共振吸收层，其中内部带内吸收谐振波长被布置在有源层的增益带内，以及用于将电流注入有源层的装置。

83. 发明授权

US5754325A Optical regenerating circuit 失效
标题翻译：光学再生电路
公开(公告)号：US5754325A
公开(公告)日：1998-05-19
申请号：US623718
申请日：1996-03-29
申请人： Yukio Michishita
发明人： Yukio Michishita
IPC分类号： G02F1/35 , G02F2/00 , H04B10/2563 , H04B10/29 , H04B10/299 , H04L7/00 , H04B10/16
CPC分类号： H04B10/299 , H04L7/0075
摘要： In a data communication system, a circuit for regenerating an optical signal that is deteriorated during the course of transmission has an optical clock generator for generating an optical clock signal whose frequency is equal to the bit rate of an optical signal input to a preselected port thereof. The clock generator outputs the clock signal via the same port as the optical signal is input. The circuit is capable of regenerating the optical signal while efficiently separating the optical signal and clock signal respectively input to and output from the clock generator.
摘要翻译：在数据通信系统中，用于再生在传输过程中劣化的光信号的电路具有用于产生频率等于输入到其预选端口的光信号的比特率的光时钟信号的光时钟发生器。时钟发生器通过与输入光信号相同的端口输出时钟信号。该电路能够重新产生光信号，同时有效地分离输入到时钟发生器和从时钟发生器输出的光信号和时钟信号。

84. 发明授权

US5742415A Optical switching device 失效
标题翻译：光开关器件
公开(公告)号：US5742415A
公开(公告)日：1998-04-21
申请号：US624523
申请日：1996-05-28
申请人： Robert J. Manning , David M. Spirit , David M. Patrick , Andrew D. Ellis
发明人： Robert J. Manning , David M. Spirit , David M. Patrick , Andrew D. Ellis
IPC分类号： G02F1/35 , G02F2/00 , H01S5/00 , H01S5/04 , H01S5/06 , H01S5/50 , H04B10/50 , H04J14/08 , H04L7/00 , H04J14/02
CPC分类号： H04B10/50 , G02F1/3517 , H01S5/50 , H04L7/0075 , G02F1/3519 , G02F2002/006 , H01S5/0057 , H01S5/041 , H01S5/0608 , H04J14/083
摘要： A non-linear optical switch includes a semiconductor optical gain medium. The switch is arranged to switch a signal at a first wavelength in response to a control signal at a second wavelength applied to the optical gain medium. The refractive index of the gain medium is modified in response to the control signal. An optical holding signal at a third wavelength is applied to the gain medium. The optical holding signal pumps the optical gain medium and thereby fixes the Fermi level. The switch may be embodied in OTDM demultiplexers, clock recovery circuits, wavelength converters and other devices.
摘要翻译： PCT No.PCT / GB94 / 02240 Sec。 371日期：1996年5月28日 102（e）日期1996年5月28日PCT提交1994年10月11日PCT公布。公开号WO95 / 10795 日期1995年04月20日非线性光开关包括半导体光学增益介质。开关被布置为响应于施加到光学增益介质的第二波长的控制信号而切换第一波长的信号。响应于控制信号修改增益介质的折射率。将第三波长的光学保持信号施加到增益介质。光学保持信号泵浦光学增益介质，从而固定费米能级。开关可以体现在OTDM解复用器，时钟恢复电路，波长转换器和其他设备中。

85. 发明授权

US5675674A Optical fiber modulation and demodulation system 失效
标题翻译：光纤调制解调系统
公开(公告)号：US5675674A
公开(公告)日：1997-10-07
申请号：US518635
申请日：1995-08-24
申请人： R. Stephens Weis
发明人： R. Stephens Weis
IPC分类号： E21B47/12 , G01H9/00 , G02B6/34 , G02F2/00
CPC分类号： E21B47/123 , G01H9/004 , G02B6/022 , G02B6/2932 , G02B6/29352
摘要： This invention is directed toward a fiber optic modulation and demodulation system, and more particularly directed toward a telemetry system for relaying signals from sensors in remote, harsh environments. Light is modulated using one or more optical reflective grating and piezoelectric crystal combinations, and demodulated using an interferometer system. The one or more modulators are driven by the responses of one or more sensors thereby modulating one or more carrier wavelengths of a carrier light source. The modulated light signal is transmitted from the sensor or sensors, over an optical fiber, to an interferometer which is used to demodulate the reflected signals and thereby determine the responses of one or more sensors. One embodiment of the invention set forth is that of a telemetry system linking sensors within a borehole to detection and processing equipment at the surface of the earth.
摘要翻译：本发明涉及一种光纤调制和解调系统，更具体地涉及一种用于在远程恶劣环境中传输来自传感器的信号的遥测系统。使用一个或多个光学反射光栅和压电晶体组合调制光，并使用干涉仪系统进行解调。一个或多个调制器由一个或多个传感器的响应驱动，从而调制载波光源的一个或多个载波波长。调制光信号通过光纤从传感器或传感器传输到干涉仪，干涉仪用于解调反射信号，从而确定一个或多个传感器的响应。提出的本发明的一个实施例是将钻孔内的传感器连接到地球表面处的检测和处理设备的遥测系统。

86. 发明授权

US5659412A Polarization diversity detection of optical signals transmitted through a polarization-mode dispersive medium 失效
标题翻译：通过偏振模色散介质传输的光信号的极化分集检测
公开(公告)号：US5659412A
公开(公告)日：1997-08-19
申请号：US350287
申请日：1994-12-06
申请人： Basil Wahid Hakki
发明人： Basil Wahid Hakki
IPC分类号： G02F2/00 , H04B10/18 , H04B10/00 , H04B10/06
CPC分类号： H04B10/2569
摘要： An apparatus and method which utilize polarization diversity detection to compensate for polarization-mode dispersion (PMD) introduced in an optical signal propagating over a medium such as optical fiber. A received optical signal is separated into first and second polarization components by a polarization beam splitter (PBS). A control signal corresponding to a phase difference between the polarization components is used to drive at least one polarization controller located in the optical signal path before the PBS, such that the two polarization components are aligned with the PSPs of the received optical signal. The control signal may also be used to adjust a variable delay element such that phases of the two polarization components are aligned before the components are combined to provide a PMD-compensated output signal. Other aspects of the invention are directed to polarization control using a rotator element with low numerical aperture input and output signal coupling, and to the use of feedback control to compensate for variations in loss through a polarization controller.
摘要翻译：利用极化分集检测来补偿在诸如光纤的介质上传播的光信号中引入的偏振模色散（PMD）的装置和方法。接收到的光信号由偏振分束器（PBS）分离成第一和第二偏振分量。对应于偏振分量之间的相位差的控制信号用于驱动位于PBS之前的光信号路径中的至少一个偏振控制器，使得两个偏振分量与所接收的光信号的PSP对准。控制信号还可以用于调整可变延迟元件，使得两个偏振分量的相位在组合之前被对准以提供PMD补偿的输出信号。本发明的其他方面涉及使用具有低数值孔径输入和输出信号耦合的旋转元件的偏振控制，以及使用反馈控制来补偿通过偏振控制器的损耗变化。

87. 发明授权

US5631768A Technical field of optoelectronics 失效
标题翻译：光电技术领域
公开(公告)号：US5631768A
公开(公告)日：1997-05-20
申请号：US532174
申请日：1995-09-22
申请人： Adrien Bruno
发明人： Adrien Bruno
IPC分类号： G02B6/12 , G02B6/122 , G02B6/34 , G02F2/00 , H01S5/026 , H01S5/50 , H01S3/00
CPC分类号： G02B6/12011 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/12033 , G02B6/1228 , H01S5/026 , H01S5/50
摘要： This invention concerns an optoelectronic device, characterized in that it comprises, integrated by deposition in a single epitaxy on a semi-insulating substrate: at least one mode adapter (T), at least one optical amplifier (OA), at least one filter (MUX) capable of separating different wavelengths of the signal, at least one photodetector (D) and at least one guide (G) ensuring the link between the above-mentioned elements.
摘要翻译：本发明涉及一种光电器件，其特征在于，其包括通过在半绝缘衬底上的单个外延沉积而集成的：至少一个模式适配器（T），至少一个光放大器（OA），至少一个滤光器 MUX），能够分离信号的不同波长，至少一个光电检测器（D）和至少一个引导件（G），确保上述元件之间的连接。

88. 发明授权

US5594583A Apparatus for re-shaping a train of light pulses, and apparatus for recovering a periodic signal synchronized on a train of modulated light pulses 失效
标题翻译：用于重新形成一系列光脉冲的装置，以及用于恢复在一串调制光脉冲上同步的周期信号的装置
公开(公告)号：US5594583A
公开(公告)日：1997-01-14
申请号：US261714
申请日：1994-06-17
申请人： Fabrice Devaux
发明人： Fabrice Devaux
IPC分类号： G02F2/00 , H04B10/00 , H04B10/02 , H04B10/17 , H04B10/18 , H04B10/155 , H04B10/04
CPC分类号： H04B10/299
摘要： Apparatus for reshaping a train of light pulses includes an electro-absorbent modulator to which the train of pulses is applied for the purpose of being resynchronized and reshaped. A periodic signal generator that is adjustable in phase and frequency applies a periodic signal to the modulator to voltage control said modulator. Servo-control means control said generator in phase and in frequency to minimize the mean photocurrent delivered by the modulator while it is both in its absorbent state and receiving a light pulse. The apparatus may also be used to recover a periodic signal that is synchronized on a train of modulated light pulses. The invention is applicable to long distance telecommunications by transmitting soliton pulses along optical fibers.
摘要翻译：用于重塑一串光脉冲的装置包括一个电吸收调制器，脉冲串被施加到该电吸收调制器上以便重新同步并重新成形。在相位和频率上可调节的周期信号发生器将周期性信号施加到调制器以对所述调制器进行电压控制。伺服控制意味着在相位和频率上控制所述发生器以最小化由调制器在其处于吸收状态并接收光脉冲时传递的平均光电流。该装置还可用于恢复在一串调制光脉冲上同步的周期信号。本发明可应用于沿着光纤传输孤子脉冲的长途电信。

89. 发明授权

US5548402A Optical sweep signal generator 失效
标题翻译：光扫信号发生器
公开(公告)号：US5548402A
公开(公告)日：1996-08-20
申请号：US412990
申请日：1995-03-29
申请人： Seiji Nogiwa
发明人： Seiji Nogiwa
IPC分类号： G02F2/00 , G01B9/02 , H01S5/042 , H01S5/06
CPC分类号： H01S5/06258 , H01S5/0085 , H01S5/0687
摘要： In an optical sweep signal generator, output beams of a variable-wavelength laser are supplied to an optical branch in which they are divided into first and second beams. The first beam, branched by the optical branch, is delayed by an optical delay line, from which a delayed beam is outputted. An optical mixer mixes the second beam together with the delayed beam so as to produce a mixed beam, which is then supplied to an optical detector. The optical detector performs heterodyne wave detection on the mixed beam. Then, a frequency analyzer performs a frequency analysis on result of the heterodyne wave detection so as to detect heterodyne beat frequency. The variable-wavelength laser is controlled in such a way that the heterodyne beat frequency detected does not vary with respect to time in a selected period of time. Thus, the sweep optical frequency to be realized is varied linearly with respect to time.
摘要翻译：在光扫描信号发生器中，可变波长激光器的输出光束被提供给它们被分成第一和第二光束的光学分支。由光分支分支的第一光束被光延迟线延迟，从该延迟线输出延迟的光束。光学混合器将第二光束与延迟光束混合，以产生混合光束，然后将其提供给光学检测器。光检测器对混合光束进行外差波检测。然后，频率分析仪对外差波检测的结果进行频率分析，以检测外差拍频。控制可变波长激光器使得所检测到的外差拍频不相对于所选择的时间段内的时间变化。因此，要实现的扫描光频率相对于时间呈线性变化。

90. 发明授权

US5532867A Bias stabilization circuit and method for a linearized directional coupler modulator 失效
标题翻译：用于线性定向耦合器调制器的偏置稳定电路和方法
公开(公告)号：US5532867A
公开(公告)日：1996-07-02
申请号：US468578
申请日：1995-06-06
申请人： Robert R. Hayes , William B. Bridges
发明人： Robert R. Hayes , William B. Bridges
IPC分类号： G02F1/01 , G02F1/313 , G02F1/35 , G02F2/00
CPC分类号： G02F1/0123 , G02F1/3132 , G02F2203/19
摘要： A circuit and method for actively stabilizing the DC bias voltages applied to passive sections of a linearized directional coupler modulator. A reference electrical signal is applied to the active section of a linearized directional coupler modulator, thereby modulating an input optical beam. An optical detector is used at the output end of the modulator to monitor the modulated optical beam. The output of the detector is sent to one or more synchronous detectors that select the one or more harmonic frequency components that one wants to suppress. The synchronous detector output is sent to a filter that converts the harmonic frequency component to a DC bias voltage, which is integrated and used to bias the passive section of the modulator. The resulting negative-feedback loop minimizes the magnitude of the particular harmonic that is selected by the filter. In a preferred embodiment, the present stabilization circuit is used to stabilize the bias voltages in a three-section linearized directional coupler modulator, resulting in a stable modulator with low second harmonic distortion and low third-order intermodulation distortion.
摘要翻译：一种用于主动稳定施加到线性化定向耦合器调制器的无源部分的DC偏置电压的电路和方法。参考电信号被施加到线性化定向耦合器调制器的有源部分，从而调制输入光束。在调制器的输出端使用光学检测器来监视调制的光束。检测器的输出被发送到选择想要抑制的一个或多个谐波频率分量的一个或多个同步检测器。同步检测器输出被发送到滤波器，该滤波器将谐波频率分量转换成DC偏置电压，其被积分并用于偏置调制器的被动部分。所得到的负反馈环路使由滤波器选择的特定谐波的幅度最小化。在一个优选实施例中，本稳定电路用于稳定三段线性定向耦合器调制器中的偏置电压，导致具有低二次谐波失真和低三阶互调失真的稳定调制器。

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