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公开(公告)号：US5136598A
公开(公告)日：1992-08-04
申请号：US531416
申请日：1990-05-31
申请人： Joseph F. Weller , William K. Burns , Lew Goldberg
发明人： Joseph F. Weller , William K. Burns , Lew Goldberg
摘要： An apparatus for generating a relatively high-power, modulated optical beams disclosed. The apparatus comprises a first element for emitting a relatively low-power laser beam at a preselected wavelength, means for focusing the laser beam into a focused beam, a damage-resistant integrated optic modulator responsive to the focused beam for developing a modulated beam, optical means for shaping the modulated beam into a shaped modulated beam, and semiconductor means having a large active area responsive to the shaped, modulated beam for producing a relatively high-power, output modulated beam. In a first embodiment, the semiconductor means is a semiconductor amplifier which amplifies the modulated beam to produce the high-power, modulated output beam.
摘要翻译： 公开了一种用于产生相对高功率的调制光束的装置。 该装置包括用于以预选波长发射相对较低功率的激光束的第一元件，用于将激光束聚焦到聚焦光束的装置，响应于聚焦光束的抗损伤集成光学调制器，用于显影调制光束，光学 用于将调制的波束成形为成形的调制波束的装置，以及响应于成形的调制波束的大的有源区域的半导体装置，用于产生相对高功率的输出调制波束。 在第一实施例中，半导体装置是放大调制光束以产生高功率调制输出光束的半导体放大器。
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公开(公告)号：US06744947B2
公开(公告)日：2004-06-01
申请号：US09965247
申请日：2001-09-28
IPC分类号： G02B626
CPC分类号： H01S3/06795 , H01S3/0085 , H01S3/06712 , H01S3/06754 , H01S3/1003 , H01S3/10092 , H01S3/13 , H01S2301/02 , Y10S385/901
摘要： Featured is a high power, broadband superfluorescent source with very low relative intensity noise (RIN) including a seed source, a modulator operably coupled to the seed source and a polarization maintaining (PM) amplifier operably coupled to the modulator. The output of the seed source is processed in the modulator so the modulator outputs a polarized optical output to the PM amplifier. The PM amplifier amplifies the modulated, polarized optical output so as to provide an amplified polarized optical output therefrom. Also featured is a feedback circuit operably coupled to the PM amplifier to control the transmission of the modulator so as to minimize the amplitude fluctuations in the output signal. Such a source is advantageous in high precision fiber optical rotation sensors and multiplexed strain sensing arrays.
摘要翻译： 特征是具有非常低的相对强度噪声（RIN）的高功率宽带超荧光源，包括种子源，可操作地耦合到种子源的调制器和可操作地耦合到调制器的偏振维持（PM）放大器。 种子源的输出在调制器中进行处理，因此调制器向PM放大器输出偏振光输出。 PM放大器放大经调制的偏振光输出，以便从其提供放大的偏振光输出。 还有一个反馈电路，其可操作地耦合到PM放大器以控制调制器的传输，以便最小化输出信号中的振幅波动。 这样的源在高精度光纤旋转传感器和复用应变传感阵列中是有利的。
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公开(公告)号：USH1965H1
公开(公告)日：2001-06-05
申请号：US08714876
申请日：1996-09-17
申请人： William K. Burns , Lew Goldberg , Wayne McElhanon
发明人： William K. Burns , Lew Goldberg , Wayne McElhanon
IPC分类号： H01S310
摘要： A bulk, quasi-periodic phase-matched difference-frequency (DFG) process in field-poled LiNbO3 bulk crystal permits continuous tunability of the output radiation in the 3.0-4.1 &mgr;m wavelength range through grating rotation. DFG in QPM-LiNbO3 crystal, carried out using a Nd:YAG laser and a high power semiconductor laser at the quasi-phased matching (QPM) degeneracy point, results in an ultra wide 0.5 &mgr;m acceptance bandwidth, permitting crystal rotation-free wavelength tuning of 4.0-4.5 &mgr;m, with 0.2 mW output power at 4.5 &mgr;m.
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公开(公告)号：US06661934B2
公开(公告)日：2003-12-09
申请号：US10143885
申请日：2002-05-14
申请人： William K. Burns , Larry A. Hess , Vishal Agarwal
发明人： William K. Burns , Larry A. Hess , Vishal Agarwal
IPC分类号： G02F1035
CPC分类号： G02F1/035 , G02F1/225 , G02F2201/07 , G02F2203/21
摘要： An optical waveguide device including an electro-optical crystal substrate having a top surface and a bottom surface; an optical waveguide path formed within a surface of the electro-optical crystal substrate; at least one electrode positioned above the optical waveguide path for applying an electric field to the optical waveguide path; and a silicon titanium oxynitride layer and a connecting layer for interconnecting the silicon titanium oxynitride layer to another surface of the electro-optical crystal substrate that is opposite to the surface in which the optical waveguide path is formed.
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公开(公告)号：US06526186B2
公开(公告)日：2003-02-25
申请号：US10098310
申请日：2002-03-18
申请人： William K. Burns
发明人： William K. Burns
IPC分类号： G02F10355
CPC分类号： G02F1/2255 , G02F2203/25
摘要： An optical modulator includes a substrate having an electrooptic effect, an optical waveguide having first and second cascading portions in the substrate, and transmitting an optical field, a first coplanar strip electrode having a first part over the first cascading portion and second and third parts extending beyond the first cascading portion, wherein the first part is approximately perpendicular to the second and third parts and has a width substantially the same as the first cascading portion, a second coplanar strip electrode having a first part over the second cascading portion and second and third parts to extend beyond the second cascading portion, and the first part being approximately perpendicular to the second and third parts, and a voltage source supplying a voltage to the first coplanar strip electrode, wherein the second coplanar strip electrode is grounded and is symmetrical to the first coplanar strip electrode.
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公开(公告)号：US5644664A
公开(公告)日：1997-07-01
申请号：US471461
申请日：1995-06-06
IPC分类号： G02F1/225 , G02F2/00 , H04B10/142 , G02B6/10
CPC分类号： G02F1/225 , G02F1/2255 , H04B10/5051 , H04B10/5053 , G02F2/002
摘要： A transmission system responsive to an electrical input information signalncludes means for modulating the input signal with a microwave subcarrier signal to produce a subcarrier modulated signal. A first interferometric modulator responsive to a source light and to the subcarrier modulated signal produces a first modulated optical signal. A second interferometric modulator cascade coupled to the first modulator and being responsive to the first modulated optical signal and to a microwave local oscillator signal produces a second modulated optical signal. Means coupled between the first and second modulators transmit the first modulated optical signal from the first modulator to the second modulator. Means responsive to the second modulated optical signal produce an output signal.
摘要翻译： 响应于电输入信息信号的传输系统包括用微波副载波信号调制输入信号以产生副载波调制信号的装置。 响应于源光和副载波调制信号的第一干涉式调制器产生第一调制光信号。 耦合到第一调制器并响应于第一调制光信号和微波本地振荡器信号的第二干涉式调制器级联产生第二调制光信号。 耦合在第一和第二调制器之间的装置将第一调制光信号从第一调制器传送到第二调制器。 响应于第二调制光信号的装置产生输出信号。
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7.发明授权
公开(公告)号：US5619364A
公开(公告)日：1997-04-08
申请号：US392310
申请日：1995-02-22
CPC分类号： H04B10/2537
摘要： A method and apparatus for counteracting polarization fading and stimulated Brillouin scattering in long runs of non-polarization maintaining optical fiber. A linearly polarized optical signal is depolarized by phase modulating the signal at a frequency significantly above the fiber's Brillouin scattering linewidth V.sub.b prior to launch into the long run of fiber.
摘要翻译： 用于抵消非偏振保持光纤的长时间偏振衰减和受激布里渊散射的方法和装置。 线性偏振光信号通过在发射到长时间光纤之前以明显高于光纤的布里渊散射线宽Vb的频率进行相位调制来去偏振。
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公开(公告)号：US5319440A
公开(公告)日：1994-06-07
申请号：US934221
申请日：1992-08-25
CPC分类号： G01C19/721
摘要： A depolarized fiber optic gyroscope with a detector for detecting a rotat about an axis of rotation and a method therefor is disclosed. The gyroscope includes a depolarized light source for generating the depolarized light; a gyro coil for conducting depolarized light about the axis of rotation, the gyro coil including a coil of a non-polarization preserving fiber having first and second ends; a depolarizer with first and second ports for eliminating birefringence induced scale factor variations caused by the non-polarization preserving fiber, the first port of the depolarizer being coupled to the first end of the gyro coil; and a coupler device for coupling the second end of the gyro coil, the second port of the depolarizer, the detector and the depolarized light source, without utilizing a polarizer.
摘要翻译： 公开了一种具有用于检测围绕旋转轴线的旋转的检测器的去极化光纤陀螺仪及其方法。 陀螺仪包括用于产生去极化光的去极化光源; 用于对旋转轴线进行去偏光的陀螺线圈，所述陀螺线圈包括具有第一端和第二端的非偏振保留光纤的线圈; 具有第一和第二端口的消偏振器，用于消除由非偏振保留光纤引起的双折射引起的比例因子变化，去偏振器的第一端口耦合到陀螺仪线圈的第一端; 以及用于耦合陀螺仪线圈的第二端，去极化器的第二端口，检测器和去极化光源的耦合器装置，而不使用偏振器。
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9.发明授权Method for eliminating birefringence in a fiber optic coupler and a coupler polarization corrector 失效用于消除光纤耦合器和耦合器偏振校正器中的双折射的方法
公开(公告)号：US4737005A
公开(公告)日：1988-04-12
申请号：US450693
申请日：1982-12-17
CPC分类号： G02B6/274 , G01C19/725 , G02B6/24 , G02B6/2766 , G02B6/2821 , G02B6/2843 , Y10S359/90
摘要： A method for correcting birefringence in a fiber optic coupler comprising measuring the intrinsic birefringent retardation, fast axis orientation and rotation of separate paths through the coupler and adding lumped birefringent elements to the ports of the coupler in a fashion to compensate for the intrinsic birefringence.
摘要翻译： 一种用于校正光纤耦合器中的双折射的方法，包括测量固有双折射延迟，快轴定向和通过耦合器的分离路径的旋转，并以集中的双折射元件以耦合器的端口的方式补偿本征双折射。
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公开(公告)号：US4653917A
公开(公告)日：1987-03-31
申请号：US478593
申请日：1983-03-24
CPC分类号： G01C19/725
摘要： A fiber optic gyroscope comprising a Sagnac interferometer including a (3.times.3) optical directional coupler. The gyroscope is driven with an essentially unpolarized broadband spatially coherent light beam supplied by a super-luminescent diode source. A significant reduction in baseband noise occurs due to the use of the essentially unpolarized light beam.
摘要翻译： 包括具有（3×3）光学定向耦合器的Sagnac干涉仪的光纤陀螺仪。 陀螺仪由超发光二极管源提供的基本上非偏振的宽带空间相干光束驱动。 由于使用了基本上非偏振光束，基带噪声显着降低。
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