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61. 发明授权

US4479701A Dual coupler fiber optic recirculating memory 失效
标题翻译：双耦合光纤再循环存储器
公开(公告)号：US4479701A
公开(公告)日：1984-10-30
申请号：US326215
申请日：1981-12-01
申请人： Steven A. Newton , John E. Bowers , Herbert J. Shaw
发明人： Steven A. Newton , John E. Bowers , Herbert J. Shaw
IPC分类号： G11C21/00 , G01S7/285 , G02B6/00 , G02B6/28 , G02B5/172
CPC分类号： G02B6/29338 , G02B6/2821 , G02B6/2861 , G02B6/29332
摘要： A fiber optic recirculating memory is disclosed which utilizes dual couplers to form a splice-free recirculating memory device from a length of single mode optical fiber forming a loop which acts as a delay line and a second length of single mode optical fiber which provides an input end and an output end for the device. A single signal supplied as an input to the device will result in a series of output signals identical to the input signal, although at smaller, decreasing amplitudes; the invention prevents the first output signal from being substantially larger than the rest of the output signals, thus eliminating the need for protective circuitry on the output end or the rejection of the first output signal. In addition to being useful as a recirculating memory device for use in a system where data is generated at a rate faster than it can be accepted by a data processor, the invention may be used as a tap filter to pass a selected fundamental frequency and its harmonics, and to attenuate all other frequencies.
摘要翻译：公开了一种光纤再循环存储器，其利用双耦合器从一单一模式光纤的长度形成无拼接的循环存储器件，该单模光纤形成用作延迟线的环路和第二长度的单模光纤，其提供输入端和输出端。作为输入到设备的单个信号将产生与输入信号相同的一系列输出信号，尽管幅度较小，幅度较小。本发明防止第一输出信号显着地大于其余的输出信号，从而消除了在输出端上对保护电路的需要或第一输出信号的抑制。除了用作在数据以比数据处理器可以接受的速度更快的速度生成数据的系统中有用的本发明之外，本发明可以用作抽头滤波器以通过选定的基频，并且其谐波，并衰减所有其他频率。

62. 再颁专利

USRE34604E Sensor using fiber interferometer 失效
标题翻译：传感器采用光纤干涉仪
公开(公告)号：USRE34604E
公开(公告)日：1994-05-10
申请号：US589061
申请日：1990-09-26
申请人： Herbert J. Shaw
发明人： Herbert J. Shaw
IPC分类号： G01D5/353 , G01H9/00 , G01J9/02 , G01B9/02
CPC分类号： G01D5/35303 , G01H9/004 , G01J9/02 , G01J2009/0226
摘要： A closed loop optical fiber interferometer is used in sensing a quantity, Q, by applying a time varying or modulated measure of, Q, asymmetrically to the closed loop (24) and detecting phase shift between two counterpropagating optical signals in the closed loop. The closed loop (24) can be used in the sensing element or a separate sensor (68, 70) can develop a time varying signal which is then applied to the closed loop interferometer.
摘要翻译：闭环光纤干涉仪用于通过对闭环（24）不对称地应用时变或调制测量Q来检测数量Q，并检测闭环中两个反向传播光信号之间的相移。闭环（24）可以用在感测元件中，或者单独的传感器（68,70）可以产生随后施加到闭环干涉仪的时变信号。

63. 发明授权

US4801189A Birefringent fiber narrowband polarization coupler and method of coupling using same 失效
标题翻译：双折射光纤窄带偏振耦合器及其耦合方法
公开(公告)号：US4801189A
公开(公告)日：1989-01-31
申请号：US161375
申请日：1988-02-22
申请人： Herbert J. Shaw , Robert C. Youngquist , Janet L. Brooks
发明人： Herbert J. Shaw , Robert C. Youngquist , Janet L. Brooks
IPC分类号： G02B6/28 , G02B6/34 , G02F1/01 , G02B6/26 , G02B5/30
CPC分类号： G02B6/274 , G02B6/2766 , G02B6/2821 , G02F1/0134 , Y10S359/90
摘要： There is disclosed herein a fiber optic directional coupler for coupling light between two polarization modes. A highly birefringent fiber optic waveguide is positioned on a flat polished surface with either of the principal axes of birefringence oriented at an angle, preferably 45.degree., to the vertical. A ridged block is then pressed down on the fiber. The ridges of the block have longitudinal axes transverse to the longitudinal axis of the fiber. The width of the ridge faces is one-half beat length, and the spacing between the ridges in also one-half beat length. The stressed regions caused by the ridges cause coupling of light traveling in one polarization mode into the other polarization mode by abrupt shifting of the axes of birefringence at the boundaries of the stressed regions.
摘要翻译：这里公开了用于在两个偏振模式之间耦合光的光纤定向耦合器。高度双折射的光纤波导位于平坦抛光表面上，双折射的主轴线与垂直方向成一定角度，最好是45°。然后将一个脊状块压在纤维上。块的脊具有横向于纤维的纵向轴线的纵向轴线。脊面的宽度为半节拍长度，脊之间的间距也为半节拍长度。由脊部引起的应力区域通过在应力区域的边界处的双折射轴的突然移位而导致以一种偏振模式行进的光耦合到另一种偏振模式。

64. 发明授权

US4794598A Synchronously pumped ring fiber Raman laser 失效
标题翻译：同步泵浦环形光纤拉曼激光器
公开(公告)号：US4794598A
公开(公告)日：1988-12-27
申请号：US888170
申请日：1986-07-18
申请人： Emmanuel Desurvire , Herbert J. Shaw
发明人： Emmanuel Desurvire , Herbert J. Shaw
IPC分类号： H01S3/00 , H01S3/06 , H01S3/094 , H01S3/16 , H01S3/30
CPC分类号： H01S3/094026 , H01S3/302
摘要： An all-fiber ring laser has a single, uninterrupted length of single-mode optical fiber that is formed into a loop by using an optical coupler. Pump signal pulses at a first optical wavelength are introduced into one end of the optical fiber. Each pump pulse propagates through the loop formed in the fiber and then exits the fiber. The pump signal pulses excite the molecules of the optical fiber to cause them to go to a higher, unstable energy level. When the molecules return to a lower energy level, photons are emitted at a second optical frequency that has a wavelength that is shifted from the wavelength of the pump signal to form laser signal pulses. The coupler is a multiplexing coupler that has a first coupling ratio at the wavelength of the pump signal and has a second coupling ratio at the wavelength of the emitted optical signal. The first coupling ratio is preferably close to zero and the second coupling coefficient is greater than 0.5. The laser optical signal recirculates in the loop to stimulate further emission of optical energy at the shifted wavelength in phase with the recirculating optical signal. Each pump pulse is timed to enter the optical fiber loop in synchronism with the recirculating laser signal pulse so as to excite the fiber molecules so as to amplify the recirculating signal pulses. The laser signal has a loop transit time related to the time interval between pump pulses such that a multiple of the loop transit time is substantially equal to a multiple of the time interval.
摘要翻译：全光纤环形激光器具有单个不间断长度的单模光纤，其通过使用光耦合器形成环路。在第一光波长的泵浦信号脉冲被引入光纤的一端。每个泵浦脉冲通过形成在光纤中的环路传播，然后离开光纤。泵浦信号脉冲激发光纤的分子，使它们进入更高，不稳定的能级。当分子返回到较低的能量水平时，光子以具有从泵浦信号的波长偏移的波长的第二光学频率发射以形成激光信号脉冲。耦合器是在泵浦信号的波长处具有第一耦合比并且在所发射的光信号的波长处具有第二耦合比的多路耦合器。第一耦合比优选接近零，第二耦合系数大于0.5。激光光信号在环路中再循环以刺激与再循环光信号同相的移动波长的光能的进一步发射。每个泵浦脉冲被定时以与循环激光信号脉冲同步地进入光纤回路，以激发光纤分子，以放大再循环信号脉冲。激光信号具有与泵脉冲之间的时间间隔相关的回路通过时间，使得循环通过时间的倍数基本上等于时间间隔的倍数。

65. 发明授权

US4792207A Single mode fiber optic single sideband modulator and method of frequency shifting using same 失效
标题翻译：单模光纤单边带调制器和使用相同方式进行频移
公开(公告)号：US4792207A
公开(公告)日：1988-12-20
申请号：US50762
申请日：1987-05-15
申请人： Herbert J. Shaw , Robert C. Youngquist , Janet L. Brooks
发明人： Herbert J. Shaw , Robert C. Youngquist , Janet L. Brooks
IPC分类号： G02B6/28 , G02F1/01 , G02F1/125 , G02B6/02 , G02B5/30 , G02F1/11
CPC分类号： G02F1/0134 , G02B6/2821 , G02F1/125 , Y10S359/90
摘要： A fiber optic frequency shifter comprising two waveguides having different indices of refraction. In some embodiments the waveguides are two modes of propagation in one fiber. Plural distributed coupling ridges, or electrodes mounted adjacent piezoelectric materials, are independently driven to apply sinusoidally varying forces to the fiber. In some embodiments, the phase relationship of the driving signals for the electrodes or ridges is such that a travelling acoustic wave is launched in the fiber. In other embodiments, regions of stress in the fiber are created by an acoustic wave coupled into the fiber from a transducer coupled to an acoustic medium surrounding the fiber. The input carrier light is shifted in frequency by the frequency of the acoustic wave.
摘要翻译：一种光纤移频器，包括具有不同折射率的两个波导。在一些实施例中，波导是在一个光纤中的两种传播模式。多个分布耦合脊或邻近压电材料安装的电极被独立地驱动以向光纤施加正弦变化的力。在一些实施例中，用于电极或脊的驱动信号的相位关系使得行进声波在光纤中发射。在其他实施例中，光纤中的应力区域是由耦合到围绕光纤的声学介质的传感器耦合到光纤中的声波产生的。输入载波的频率以声波的频率移动。

66. 发明授权

US4676585A Continuously variable fiber optic delay line 失效
标题翻译：连续可变光纤延迟线
公开(公告)号：US4676585A
公开(公告)日：1987-06-30
申请号：US637042
申请日：1984-07-09
申请人： Herbert J. Shaw , John E. Bowers , Steven A. Newton
发明人： Herbert J. Shaw , John E. Bowers , Steven A. Newton
IPC分类号： G02B6/00 , G02B6/28 , H04B10/02 , G02B6/26
CPC分类号： G02B6/2861 , G02B6/2821 , G02B6/2826 , G02B6/283 , Y10S359/90
摘要： A continuously variable optical delay line having a first substrate (66, 70) and a second substrate (95). The first substrate is composed of a quartz block (70) with a large radius of curvature along its length, supporting a silicon substrate (66) having a plurality of longitudinal, parallel v-grooves (68). A single length (121) of single mode optical fiber is wrapped around the first substrate (66, 70) in helical fashion with each loop being secured in one of the v-grooves (68). The portions of the fiber (121) in the v-grooves (68) are lapped and polished to create a flat coupling surface extending laterally and longitudinally across the first substrate (66, 70). The second substrate (91) is composed of a quartz block with a single v-groove holding a segment of single mode fiber (95). The radius of curvature of this v-groove is substantially smaller than that of the first substrate, such that the flat coupling surface of the second substrate (91) is shorter than that of the first substrate (66). The first and second substrates are placed together such that the fiber in the second substrate is coupled to the fiber in the first substrate. By moving (142) the second substrate longitudinally with respect to the first substrate, a continuously variable delay can be obtained. The continuously variable delay line can be combined with a separate discretely variable delay line to create a longer continuous variable delay. The continuous variable delay line can be formed with only one v-groove (68) in the first substrate (66).
摘要翻译： PCT No.PCT / US82 / 01609 Sec。 371日期1984年7月9日 102（e）日期1984年7月9日PCT申请日1982年11月12日PCT公布。出版物WO84 / 02006 日期：1984年5月24日。一种具有第一基板（66,70）和第二基板（95）的连续可变光延迟线。第一衬底由沿其长度具有大曲率半径的石英块（70）组成，支撑具有多个纵向平行V形槽（68）的硅衬底（66）。单模光纤的单个长度（121）以螺旋方式缠绕在第一基板（66,70）周围，每个环固定在一个V形槽（68）中。所述v形槽（68）中的所述纤维（121）的所述部分被研磨和抛光以产生横向和纵向延伸穿过所述第一衬底（66,70）的平坦的联接表面。第二基板（91）由具有保持单模光纤（95）的单个v形槽的石英块组成。该v形槽的曲率半径比第一衬底的曲率半径小，使得第二衬底（91）的平坦耦合表面比第一衬底（66）的平坦的耦合表面短。将第一和第二基板放置在一起，使得第二基板中的光纤耦合到第一基板中的光纤。通过相对于第一基板纵向移动（142）第二基板，可以获得连续可变的延迟。连续可变延迟线可以与单独的离散可变延迟线组合以产生更长的连续可变延迟。连续可变延迟线可以在第一基板（66）中仅形成一个V形槽（68）。

67. 发明授权

US4588255A Optical guided wave signal processor for matrix-vector multiplication and filtering 失效
标题翻译：光导波信号处理器，用于矩阵矢量乘法和滤波
公开(公告)号：US4588255A
公开(公告)日：1986-05-13
申请号：US503871
申请日：1983-06-13
申请人： Moshe Tur , Joseph W. Goodman , Herbert J. Shaw , Behzad Moslehi , John E. Bowers
发明人： Moshe Tur , Joseph W. Goodman , Herbert J. Shaw , Behzad Moslehi , John E. Bowers
IPC分类号： G02B6/28 , G06E3/00 , G06G7/12
CPC分类号： G02B6/2861 , G06E3/001
摘要： An array (48, 49, 50, 51) of fiber optic couplers coupling an input (45) and an output (46) waveguide. The output waveguide (46) is routed among the couplers of the array such that either backward or forward coupling exists. With backward coupling, energy coupled into the output waveguide (46) in a coupler of the array is guided back to the preceding coupler for coupling back into the input waveguide (45).The backward coupling allows recirculations to occur between couplers to create poles and zeroes in the transfer function of the array which transfer function can be programmed or tailored somewhat to have specific characteristics. Further, the backward coupling allows the array to be used for matrix-vector multiplication.
摘要翻译：耦合输入（45）和输出（46）波导的光纤耦合器的阵列（48,49,50,51）。输出波导（46）在阵列的耦合器之间被路由，使得存在向后或向前耦合。通过反向耦合，耦合到阵列的耦合器中的输出波导（46）的能量被引导回到先前的耦合器以耦合回到输入波导（45）。反向耦合允许在耦合器之间发生再循环，以在阵列的传递函数中产生极点和零点，该传递函数可以被编程或稍微修改以具有特定的特性。此外，反向耦合允许阵列用于矩阵矢量乘法。

68. 发明授权

US4564293A Fiber optic loop interferometer and method with coincident backscatter elimination 失效
标题翻译：光纤环路干涉仪和符合反向散射消除的方法
公开(公告)号：US4564293A
公开(公告)日：1986-01-14
申请号：US520605
申请日：1983-08-05
申请人： Steven A. Newton , Herbert J. Shaw , Cassius C. Cutler
发明人： Steven A. Newton , Herbert J. Shaw , Cassius C. Cutler
IPC分类号： G01B9/02 , G01C19/72 , G01C19/64
CPC分类号： G01C19/72
摘要： Method and apparatus for improving the sensitivity of Sagnac gyroscopes and other interferometers utilizing a fiber optic loop by minimizing the effects of backscattered radiation. In one disclosed embodiment, the amplitude of coincident backscattered radiation is significantly reduced by applying the light in the form of a pulse of short duration and gating the output so that only the scattered energy from a short length of the fiber contributes to the interfering wave. The interference is reduced even further by processing or constructing the loop to eliminate the scattering sources in the short segment which can give rise to coincident backscattered power.
摘要翻译：用于通过最小化背散射辐射的影响来提高利用光纤环路的Sagnac陀螺仪和其它干涉仪的灵敏度的方法和装置。在一个公开的实施例中，通过以短持续时间的脉冲的形式施加光并门控输出，使得只有来自光纤的短长度的散射能量有助于干扰波，才能显着地减少重合后向散射辐射的幅度。通过处理或构造回路以消除短段中的散射源，甚至可以进一步降低干扰，这可以产生一致的反向散射功率。

69. 发明授权

US4546476A Fiber optic amplifier 失效
标题翻译：光纤放大器
公开(公告)号：US4546476A
公开(公告)日：1985-10-08
申请号：US448707
申请日：1982-12-10
申请人： Herbert J. Shaw , Marvin Chodorow
发明人： Herbert J. Shaw , Marvin Chodorow
IPC分类号： G02B6/00 , G02B6/04 , G02B6/28 , G02B27/10 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/091 , H01S3/0915 , H01S3/094 , H01S3/23 , H01S3/30
CPC分类号： H01S3/094003 , H01S3/06708 , H01S3/06737 , H01S3/094007 , H01S3/094019 , H01S3/094069
摘要： A pair of small diameter optical fibers are arranged in a side-by-side configuration, the first fiber providing a pumping source, and the second fiber doped with a material which will lase at the signal frequency. The signal to be amplified propagates through the second fiber to stimulate emission of coherent light from the lasing material, resulting in amplification of the signal. The refractive index of the first and second fibers are selected such that the signal in the second fiber is well guided, while the pumping light in the first fiber is unguided, yielding low losses in the second fiber but high transfer of the pumping light from the first fiber to the second fiber.
摘要翻译：一对小直径光纤以并排配置排列，第一光纤提供泵浦源，第二光纤掺杂有以信号频率变化的材料。待放大的信号通过第二光纤传播，以刺激来自激光材料的相干光的发射，导致信号的放大。选择第一和第二光纤的折射率使得第二光纤中的信号被良好地引导，而第一光纤中的泵浦光未被引导，在第二光纤中产生低损耗，但来自第一根光纤到第二条光纤。

70. 发明授权

US4530097A Brillouin ring laser 失效
标题翻译：布里渊环激光
公开(公告)号：US4530097A
公开(公告)日：1985-07-16
申请号：US426885
申请日：1982-09-29
申请人： Loren F. Stokes , Herbert J. Shaw , Marvin Chodorow
发明人： Loren F. Stokes , Herbert J. Shaw , Marvin Chodorow
IPC分类号： G01C19/66 , G01C19/72 , G02B27/28 , G02F1/35 , H01S3/083 , H01S3/30
CPC分类号： H01S3/302 , G01C19/66 , H01S3/083
摘要： A Brillouin ring laser comprises a fiber optic resonator formed from a loop of fiber optic material and a fiber optic directional coupler for optically closing the loop.
摘要翻译：布里渊环激光器包括由光纤材料环形成的光纤谐振器和用于光学闭合环路的光纤定向耦合器。

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