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    Dynamic control of polarization of an optical signal
    3.
    发明授权
    Dynamic control of polarization of an optical signal 有权
    光信号的极化动态控制

    公开(公告)号：US06576886B1

    公开(公告)日：2003-06-10

    申请号：US09683825

    申请日：2002-02-20

    Applicant: X. Steve Yao

    Inventor： X. Steve Yao

    IPC: H01J4014

    CPC classification number: G02F1/0136

    Abstract: Techniques for dynamically controlling polarization of an optical signal by combining both feed-forward and feedback controls.

    Abstract translation: 通过组合前馈和反馈控制来动态控制光信号的偏振的技术。

    Methods and devices based on brillouin selective sideband amplification
    4.
    发明授权
    Methods and devices based on brillouin selective sideband amplification 失效
    基于布里渊选择性边带扩增的方法和装置

    公开(公告)号：US06535328B2

    公开(公告)日：2003-03-18

    申请号：US09739926

    申请日：2000-12-18

    Applicant: X. Steve Yao

    Inventor： X. Steve Yao

    IPC: H01S3098

    CPC classification number: H04B10/2916

    Abstract: Opto-electronic devices and techniques using Brillouin scattering to select a sideband in a modulated optical carrier signal for amplification. Two lasers respectively provide a carrier signal beam and a Brillouin pump beam which are fed into an Brillouin optical medium in opposite directions. The relative frequency separation between the lasers is adjusted to align the frequency of the backscattered Brillouin signal with a desired sideband in the carrier signal to effect a Brillouin gain on the sideband. This effect can be used to implement photonic RF signal mixing and conversion with gain, conversion from phase modulation to amplitude modulation, photonic RF frequency multiplication, optical and RF pulse generation and manipulation, and frequency-locking of lasers.

    Abstract translation: 使用布里渊散射的光电子器件和技术来选择用于放大的调制光载波信号中的边带。 两个激光器分别提供载波信号光束和布里渊泵浦光束，它们以相反方向馈送到布里渊光学介质中。 调整激光器之间的相对频率间隔以使反向散射布里渊信号的频率与载波信号中的期望的边带对齐，以实现边带上的布里渊增益。 这种效应可用于实现具有增益，从相位调制到幅度调制，光子RF倍频，光学和RF脉冲生成和操作以及激光器频率锁定的增益的光子RF信号混合和转换。

    Optical pulse synthesis using brillouin selective sideband amplification
    5.
    发明授权
    Optical pulse synthesis using brillouin selective sideband amplification 失效
    使用布里渊选择性边带扩增的光脉冲合成

    公开(公告)号：US06476959B2

    公开(公告)日：2002-11-05

    申请号：US09758551

    申请日：2001-01-10

    Applicant: X. Steve Yao

    Inventor： X. Steve Yao

    IPC: H01S330

    CPC classification number: H01S3/302

    Abstract: Techniques for producing optical pulses based on Brillouin selective sideband amplification by using a common modulation control signal to modulate both a signal beam to produce multiple sideband signals and a single pump beam to produce multiple pump beams.

    Abstract translation: 通过使用公共调制控制信号来调制信号束以产生多个边带信号和单个泵浦波束以产生多个泵浦波束的基于布里渊选择性边带放大产生光脉冲的技术。

    Coupled opto-electronic oscillator
    6.
    发明授权
    Coupled opto-electronic oscillator 失效
    耦合光电子振荡器

    公开(公告)号：US5929430A

    公开(公告)日：1999-07-27

    申请号：US937892

    申请日：1997-09-25

    Applicant: X. Steve Yao ,  Lute Maleki

    Inventor： X. Steve Yao ,  Lute Maleki

    IPC: H01S5/065 ,  H01S5/10 ,  H01S5/50 ,  H01S3/098 ,  G02F1/03

    CPC classification number: H01S5/065 ,  H01S5/1071 ,  H01S5/50

    Abstract: A coupled opto-electronic oscillator that directly couples a laser oscillation with an electronic oscillation to simultaneously achieve a stable RF oscillation at a high frequency and ultra-short optical pulsation by mode locking with a high repetition rate and stability. Single-mode selection can be achieved even with a very long opto-electronic loop. A multimode laser can be used to pump the electronic oscillation, resulting in a high operation efficiency. The optical and the RF oscillations are correlated to each other.

    Abstract translation: 将激光振荡与电子振荡直接耦合的耦合光电子振荡器，通过具有高重复率和稳定性的模式锁定同时实现高频下的稳定RF振荡和超短光脉冲。 即使使用非常长的光电环路也可以实现单模选择。 可以使用多模激光器来泵送电子振荡，导致高的运行效率。 光学和RF振荡相互关联。

    Brillouin opto-electronic oscillators
    7.
    发明授权
    Brillouin opto-electronic oscillators 失效
    布里渊光电振荡器

    公开(公告)号：US5917179A

    公开(公告)日：1999-06-29

    申请号：US10417

    申请日：1998-01-21

    Applicant: X. Steve Yao

    Inventor： X. Steve Yao

    IPC: G02F1/01 ,  H01S3/30 ,  G02F1/035 ,  H01S3/098

    CPC classification number: G02F1/0123 ,  H01S3/302

    Abstract: Opto-electronic oscillators having at least one Brillouin feedback loop based on the Brillouin selective sideband amplification to provide a sufficient gain for the oscillator to start and sustain an electro-optic oscillation. Such an oscillator can generate high frequency, high spectral purity, and tunable microwave signals in both optical and electrical domains.

    Abstract translation: 具有基于布里渊选择性边带放大的至少一个布里渊反馈回路的光电子振荡器，以为振荡器启动和维持电光振荡提供足够的增益。 这种振荡器可以在光学和电学领域中产生高频，高光谱纯度和可调谐的微波信号。

    Optical Depolarizers and DGD Generators Based on Optical Delay
    8.
    发明申请
    Optical Depolarizers and DGD Generators Based on Optical Delay 有权
    基于光延迟的光偏振器和DGD发生器

    公开(公告)号：US20090225420A1

    公开(公告)日：2009-09-10

    申请号：US12468801

    申请日：2009-05-19

    Applicant: X. Steve Yao ,  Jane Chen ,  Yongqiang Shi

    Inventor： X. Steve Yao ,  Jane Chen ,  Yongqiang Shi

    IPC: G02B5/30

    CPC classification number: G02B27/283 ,  G02B6/272 ,  G02B6/278 ,  G02B6/2786 ,  G02B27/286 ,  G02F1/0136 ,  G02F1/09 ,  G02F2001/0139

    Abstract: Techniques and devices for depolarizing light and producing a variable differential group delays in optical signals. In one implementation, an input optical beam is split into first and second beams with orthogonal polarizations. One or two optical reflectors are then used to cause the first and second optical beams to undergo different optical path lengths before they are recombined into a single output beam. An adjustment mechanism may used implemented to adjust the difference in the optical path lengths of the first and second beams to produce a variable DGD. When the depolarization of light is desired, the difference in the optical path lengths of the first and second beams is set to be greater than the coherence length of the input optical beam.

    Abstract translation: 用于去光偏振并产生光信号中的可变差分组延迟的技术和装置。 在一个实现中，输入光束被分成具有正交偏振的第一和第二光束。 然后使用一个或两个光反射器来使第一和第二光束在被重新组合成单​​个输出光束之前经历不同的光程长度。 可以使用调整机构来调整第一和第二光束的光程长度的差异以产生可变DGD。 当需要光的去极化时，第一和第二光束的光程长度的差被设定为大于输入光束的相干长度。

    In-line optical polarimeter using free-space polarization sampling elements
    9.
    发明授权
    In-line optical polarimeter using free-space polarization sampling elements 有权
    使用自由空间偏振采样元件的在线光学偏振计

    公开(公告)号：US07265836B1

    公开(公告)日：2007-09-04

    申请号：US11025662

    申请日：2004-12-28

    Applicant: X. Steve Yao

    Inventor： X. Steve Yao

    IPC: G01J4/00

    CPC classification number: G01J4/00

    Abstract: This application teaches various implementations of methods and in-line polarimeters with free-space sampling elements to sample four sample beams for determining the polarization state of input light. In one exemplary implementation, a device in this application includes four optical polarization analyzers arranged in series to form an optical path in free space to split four sample beams with four different states of polarization from an input optical beam propagating along the optical path. Each optical polarization analyzer transmits a majority of the input optical beam along the optical path and splits a fraction of the input beam as a respective sample beam. The device also includes four optical detectors respectively positioned in optical paths of the four sample beams to convert the sample beams into four detector signals indicative of optical power levels of the four different states of polarization, respectively.

    Abstract translation: 该应用教导了具有自由空间采样元件的方法和在线偏振计的各种实施方式来采样四个采样光束以确定输入光的偏振状态。 在一个示例性实施方案中，本申请中的装置包括串联布置的四个光学偏振分析器，以在自由空间中形成光路，以分离具有沿着光路传播的输入光束的四个不同偏振态的四个采样光束。 每个光学偏振分析仪沿着光路传输大部分输入光束，并将一部分输入光束分成相应的样本光束。 该装置还包括四个光学检测器，分别位于四个采样光束的光路中，以将采样光束分别转换成四个检测器信号，分别指示四个不同偏振态的光功率电平。

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