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    Optical devices with folded optical path designs
    11.
    发明授权
    Optical devices with folded optical path designs 有权
    具有折叠光路设计的光学设备

    公开(公告)号：US07157687B1

    公开(公告)日：2007-01-02

    申请号：US10677809

    申请日：2003-10-01

    Applicant: X. Steve Yao

    Inventor： X. Steve Yao

    IPC: G02F1/01 ,  H01J3/14

    CPC classification number: G02F1/093

    Abstract: Optical devices with folded optical paths to reduce size of optical devices and optical elements in the optical devices. The folded optical paths operate by manipulating optical polarization of light. Exemplary optical switches and variable optical attenuators are described.

    Abstract translation: 具有折叠光路的光学装置，以减小光学装置中的光学装置和光学元件的尺寸。 折叠的光路通过操纵光的偏振来操作。 描述了示例性光开关和可变光衰减器。

    Variable polarization-dependent-loss source
    13.
    发明授权
    Variable polarization-dependent-loss source 有权
    可变偏振相关损耗源

    公开(公告)号：US06975454B1

    公开(公告)日：2005-12-13

    申请号：US10209824

    申请日：2002-07-31

    Applicant: Lianshan Yan ,  X. Steve Yao

    Inventor： Lianshan Yan ,  X. Steve Yao

    IPC: G02B6/27 ,  G02B27/28

    CPC classification number: G02B6/2793 ,  G02B6/272 ,  H04B10/2572 ,  Y10S359/90

    Abstract: An optical device including a beam splitter, polarization controller, and beam combiner is described. In some embodiments, the beam splitter and beam combiner are provided in a single element. An incoming light beam is split into two beams with different polarization components. The polarization of one or both of the beams is rotated using one or two polarization controllers such as fiber squeezers. The beams are then combined, so that a portion of each of the beams is provided to an output. The polarization dependent loss of the device can then be controlled by controlling the polarization rotation. In some embodiments, the rotation is dynamically controlled.

    Abstract translation: 描述了包括分束器，偏振控制器和光束组合器的光学装置。 在一些实施例中，分束器和光束组合器设置在单个元件中。 入射光束被分成具有不同偏振分量的两个光束。 使用一个或两个偏振控制器（诸如光纤挤压器）使一个或两个光束的偏振旋转。 然后将光束组合，使得每个光束的一部分被提供给输出。 然后可以通过控制偏振旋转来控制器件的偏振相关损耗。 在一些实施例中，动态地控制旋转。

    Opto-electronic devices and systems based on brillouin selective sideband amplification
    14.
    发明授权
    Opto-electronic devices and systems based on brillouin selective sideband amplification 失效
    基于布里渊选择性边带放大的光电子器件和系统

    公开(公告)号：US06178036B1

    公开(公告)日：2001-01-23

    申请号：US09006845

    申请日：1998-01-14

    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 depolarizers and DGD generators based on optical delay
    15.
    发明授权
    Optical depolarizers and DGD generators based on optical delay 有权
    光学去极化器和基于光延迟的DGD发生器

    公开(公告)号：US08164831B2

    公开(公告)日：2012-04-24

    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 ,  G02B6/26 ,  G02B27/28

    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。

    Fiber devices with transverse-pressure-controlled squeezers
    19.
    发明授权
    Fiber devices with transverse-pressure-controlled squeezers 有权
    具有横向压力控制的挤压机的纤维装置

    公开(公告)号：US06873783B1

    公开(公告)日：2005-03-29

    申请号：US10873353

    申请日：2004-06-22

    Applicant: X. Steve Yao

    Inventor： X. Steve Yao

    IPC: G02B6/10 ,  G02B6/34 ,  G02F1/01 ,  G02B6/00

    CPC classification number: G02F1/0136 ,  G02B6/105 ,  G02B6/274 ,  G02B6/2766 ,  G02F1/0134

    Abstract: Implementations of a polarization control method and apparatus are provided. In one implementation, a device uses super-polished squeezing surfaces to apply pressure against a polyimide coated fiber thereby minimizing micro-bending effects that cause losses in the fiber. Special control circuitry may be used to maintain a driving source of piezo-electrics that control the squeezing surfaces at a resonant frequency, thereby minimizing the voltages needed to drive the piezo-electrics.

    Abstract translation: 提供了偏振控制方法和装置的实现。 在一个实施方案中，设备使用超抛光挤压表面对聚酰亚胺涂覆的纤维施加压力，从而最小化引起纤维损失的微弯曲效应。 可以使用特殊控制电路来保持压电表面的驱动源，以便以共振频率控制挤压表面，从而最小化驱动压电所需的电压。

    Ladder-structured photonic variable delay device
    20.
    发明授权
    Ladder-structured photonic variable delay device 失效
    梯形光子可变延迟装置

    公开(公告)号：US5796510A

    公开(公告)日：1998-08-18

    申请号：US835352

    申请日：1997-04-07

    Applicant: X. Steve Yao

    Inventor： X. Steve Yao

    IPC: G02B6/28 ,  G02F1/01 ,  G02F1/03 ,  G02F1/29 ,  H01Q3/26 ,  H01Q15/18 ,  H01Q15/24

    CPC classification number: H01Q3/2682 ,  G02F1/01 ,  H01Q15/18 ,  H01Q15/246 ,  G02B6/2861 ,  G02F2201/20

    Abstract: An ladder-structured variable delay device for providing variable true time delay to multiple optical beams simultaneously. The device comprises multiple basic units stacked on top of each other resembling a ladder. Each basic unit comprises a polarization sensitive corner reflector formed by two polarization beamsplitters and a polarization rotator array placed parallel to the hypotenuse of the corner reflector. Controlling an array element of the polarization rotator array causes an optical beam passing through the array element to either go up to a basic unit above it or reflect back towards output. The beams going higher on the "ladder" experience longer optical path delay. Finally, the ladder-structured variable device can be cascaded with another multi-channel delay device to form a new device which combines the advantages of the two individual devices. This programmable optic device has the properties of high packing density, low loss, easy fabrication, and virtually infinite bandwidth. In addition, the delay is reversible so that the same delay device can be used for both antenna transmitting and receiving.

    Abstract translation: 梯形结构的可变延迟装置，用于同时向多个光束提供可变的真实时间延迟。 该装置包括堆叠在彼此顶部的类似梯子的多个基本单元。 每个基本单元包括由两个偏振分束器形成的偏振敏感角反射器和平行于角反射器的斜边放置的偏振旋转器阵列。 控制偏振旋转器阵列的阵列元件使得通过阵列元件的光束向上移动到其上方的基本单元或反射回输出。 “梯子”上的光束越高，光路延迟越长。 最后，梯形结构的可变设备可以与另一个多通道延迟设备级联，形成一个结合了两个单独设备的优点的新设备。 该可编程光学器件具有高封装密度，低损耗，易于制造和几乎无限带宽的特性。 此外，延迟是可逆的，使得相同的延迟装置可以用于天线发射和接收两者。

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