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    Tunable add-drop filter with an active resonator
    11.
    发明授权
    Tunable add-drop filter with an active resonator 有权

    公开(公告)号：US12247909B2

    公开(公告)日：2025-03-11

    申请号：US18322118

    申请日：2023-05-23

    Applicant: Washington University

    Inventor： Sahin Kaya Ozdemir ,  Lan Yang ,  Bo Peng ,  Faraz Monifi

    IPC: G01N15/14 ,  G01N15/1434 ,  G01N21/77 ,  G01N21/65

    Abstract: A method of transmitting at least one optical signal through an add-drop filter includes directing the at least one optical signal into a first tapered optical fiber of the add-drop filter. The add-drop filter includes an active resonator side-coupled between the first tapered optical fiber and a second tapered optical fiber, and the active resonator is doped with at least one rare earth ion. A tuned optical gain is produced by delivering a tuned amount of pump laser energy to the at least one rare earth ion at a sub-lasing level, the tuned optical gain configured to compensate an intrinsic loss of the active resonator.

    DETECTION OF NANO-SCALE PARTICLES WITH A SELF-REFERENCED AND SELF-HETERODYNED RAMAN MICRO-LASER
    15.
    发明申请
    DETECTION OF NANO-SCALE PARTICLES WITH A SELF-REFERENCED AND SELF-HETERODYNED RAMAN MICRO-LASER 审中-公开
    用自动和自异性拉曼光学激光器检测纳米鳞片状颗粒

    公开(公告)号：US20150285728A1

    公开(公告)日：2015-10-08

    申请号：US14659427

    申请日：2015-03-16

    Applicant: Washington University

    Inventor： Sahin Kaya Ozdemir ,  Lan Yang

    IPC: G01N15/14 ,  G01N21/65

    CPC classification number: G01N15/1434 ,  G01N21/7746 ,  G01N2021/655 ,  Y10S977/88

    Abstract: A system and method for is a micro-laser based nano-scale object detection system and method using frequency shift and/or mode splitting techniques. The system and method can provide highly sensitive detection of nanoparticles with a self-referenced and self-heterodyned whispering-gallery Raman micro-laser. The system and method also provides for nano-particle size measurement.

    Abstract translation: 一种用于基于微激光的纳米尺度物体检测系统和方法的系统和方法，该系统和方法使用频移和/或模式分割技术。 该系统和方法可以提供具有自参考和自我外差的耳语拉曼微型激光器的纳米颗粒的高灵敏度检测。 该系统和方法还提供纳米粒度测量。

    TUNABLE ADD-DROP FILTER WITH AN ACTIVE RESONATOR
    16.
    发明公开
    TUNABLE ADD-DROP FILTER WITH AN ACTIVE RESONATOR 审中-公开

    公开(公告)号：US20230304916A1

    公开(公告)日：2023-09-28

    申请号：US18322118

    申请日：2023-05-23

    Applicant: Washington University

    Inventor： Sahin Kaya Ozdemir ,  Lan Yang ,  Bo Peng ,  Faraz Monifi

    IPC: G01N15/14 ,  G01N21/77

    CPC classification number: G01N15/1434 ,  G01N21/7746 ,  G01N2021/655 ,  Y10S977/88

    Abstract: A method of transmitting at least one optical signal through an add-drop filter includes directing the at least one optical signal into a first tapered optical fiber of the add-drop filter. The add-drop filter includes an active resonator side-coupled between the first tapered optical fiber and a second tapered optical fiber, and the active resonator is doped with at least one rare earth ion. A tuned optical gain is produced by delivering a tuned amount of pump laser energy to the at least one rare earth ion at a sub-lasing level, the tuned optical gain configured to compensate an intrinsic loss of the active resonator.

    OPTICAL WHISPERING GALLERY MODE BARCODES FOR HIGH-PRECISION AND WIDE-RANGE MEASUREMENTS
    17.
    发明申请
    OPTICAL WHISPERING GALLERY MODE BARCODES FOR HIGH-PRECISION AND WIDE-RANGE MEASUREMENTS 有权

    公开(公告)号：US20230010794A1

    公开(公告)日：2023-01-12

    申请号：US17859879

    申请日：2022-07-07

    Applicant: Washington University

    Inventor： Lan Yang ,  Jie Liao

    IPC: G01J5/44 ,  G01J5/0821 ,  G06K19/06

    Abstract: Systems and methods for measuring a temperature using an optical whispering gallery mode (WGM) resonator are disclosed. The system includes a WGM resonator operatively coupled to a tunable laser source and a detector, as well as a computing device. The computing device is configured to transform a transmission spectrum from the detector into a measured barcode that includes a matrix of values indicative of at least one characteristic of the transmission spectrum. The computing device is further configured to transform the measured barcode into a temperature based on a relative collective shift of the measured barcode from a reference barcode selected from a predetermined library of reference barcodes.

    Method and system for parity-time symmetric optics and nonreciprocal light transmission
    20.
    发明授权
    Method and system for parity-time symmetric optics and nonreciprocal light transmission 有权
    奇偶校验时对称光学和非互易光传输的方法和系统

    公开(公告)号：US09531150B2

    公开(公告)日：2016-12-27

    申请号：US14685335

    申请日：2015-04-13

    Applicant: Washington University

    Inventor： Sahin Kaya Ozdemir ,  Bo Peng ,  Lan Yang

    IPC: H01S3/05 ,  H01S3/06 ,  H01S3/17 ,  H01S3/10 ,  G02F1/365 ,  H01S3/082 ,  H01S3/094 ,  H01S3/16

    CPC classification number: H01S3/10092 ,  G02F1/365 ,  G02F2203/15 ,  H01S3/0604 ,  H01S3/0627 ,  H01S3/082 ,  H01S3/094038 ,  H01S3/1608 ,  H01S3/176

    Abstract: A method and system for optical systems based on parity-time symmetry and its breaking, and for nonreciprocal light transmission in a parity-time symmetric micro-resonator system are provided. The system includes an optical assembly that includes a first dissipative optical system and a second optical system coupled in energy transfer communication with the first optical system. The second optical system is configured to receive a continuous flow of energy from an external source and to transfer energy to the first optical system through the couple wherein the energy transferred to the first optical system from the second optical system is approximately equal to the energy dissipated in the first optical system, where the energy transferred to the first optical system from the second optical system is selectable using at least one of an amount of couple between the first optical system and the second optical system and a gain of the second optical system.

    Abstract translation: 提供了一种基于奇偶校验 - 时间对称性及其断开的光学系统的方法和系统，以及用于奇偶校验 - 时间对称微谐振器系统中的非互易光传输的方法和系统。 该系统包括光学组件，其包括第一耗散光学系统和与第一光学系统的能量传递通信耦合的第二光学系统。 第二光学系统被配置为从外部源接收持续的能量流并且通过耦合将能量传递到第一光学系统，其中从第二光学系统传送到第一光学系统的能量近似等于所耗散的能量 在第一光学系统中，使用第一光学系统和第二光学系统之间的耦合量和第二光学系统的增益中的至少一个可选择从第二光学系统传送到第一光学系统的能量。

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