公开(公告)号：US09042003B2

公开(公告)日：2015-05-26

申请号：US14513058

申请日：2014-10-13

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Jiang Li ,  Hansuek Lee ,  Tong Chen ,  Kerry Vahala

IPC: G02F2/02 ,  G02F1/225 ,  G02F1/35

CPC classification number: G02F1/353 ,  G02F1/2257 ,  G02F2201/063 ,  G02F2201/17 ,  G02F2201/58 ,  G02F2202/09 ,  G02F2202/105 ,  G02F2203/15 ,  G02F2203/54 ,  G02F2203/56 ,  G02F2203/69

Abstract: A frequency comb generator fabricated on a chip with elimination of a disadvantageous reflow process, includes an ultra-high Q disk resonator having a waveguide that is a part of a wedge structure fabricated from a silicon dioxide layer of the chip. The disk resonator allows generation of a frequency comb with a mode spacing as low as 2.6 GHz and up to 220 GHz. A surface-loss-limited behavior of the disk resonator decouples a strong dependence of pumping threshold on repetition rate.

Abstract translation: 制造在芯片上的消除不利的回流工艺的频率梳发生器包括具有作为由芯片的二氧化硅层制成的楔形结构的一部分的波导的超高Q盘谐振器。 磁盘谐振器允许产生低至2.6GHz和高达220GHz的模式间隔的频率梳。 盘式谐振器的表面损耗受限行为使抽水阈值对重复率的强烈依赖性解耦。

公开(公告)号：US20140105232A1

公开(公告)日：2014-04-17

申请号：US13831692

申请日：2013-03-15

Applicant: California Institute of Technology

Inventor： Kerry Vahala ,  Tong Chen ,  Hansuek Lee ,  Myoung-Gyun Suh

IPC: H01S3/00 ,  H01S3/13 ,  H01S3/08

CPC classification number: H01S3/0014 ,  G02B6/12007 ,  G02B6/2934 ,  H01S3/08013 ,  H01S3/1305 ,  H01S5/026 ,  H01S5/0687

Abstract: An optical apparatus comprises a waveguide substrate and an optical reference cavity. The optical reference cavity comprises an optical waveguide formed on the waveguide substrate and arranged to form a closed loop greater than or about equal to 10 cm in length. The RMS resonance frequency fluctuation is less than or about equal to 100 Hz. The Q-factor can be greater than or about equal to 108. The optical waveguide can exhibit optical loss less than or about equal to 0.2 dB/m for propagation of an optical signal along the optical waveguide. The closed loop path can comprise two or more linked spirals greater than or about equal to 1 meter in length and can occupy an area on the waveguide substrate less than or about equal to 5 cm2.

Abstract translation: 光学装置包括波导基板和光学参考腔。 光学参考腔包括形成在波导衬底上并被布置成形成长度大于或等于10cm的闭环的光波导。 RMS谐振频率波动小于或等于100Hz。 Q因子可以大于或等于108.光波导可以表现出对于光信号沿着光波导传播的小于或等于0.2dB / m的光损耗。 闭环路径可以包括长度大于或等于1米的两个或多个连接的螺旋，并且可以占据波导基底上的面积小于或等于5cm 2。

公开(公告)号：US08848760B2

公开(公告)日：2014-09-30

申请号：US13831692

申请日：2013-03-15

Applicant: California Institute of Technology

Inventor： Kerry Vahala ,  Tong Chen ,  Hansuek Lee ,  Myoung-Gyun Suh

IPC: H01S3/08

CPC classification number: H01S3/0014 ,  G02B6/12007 ,  G02B6/2934 ,  H01S3/08013 ,  H01S3/1305 ,  H01S5/026 ,  H01S5/0687

Abstract: An optical apparatus comprises a waveguide substrate and an optical reference cavity. The optical reference cavity comprises an optical waveguide formed on the waveguide substrate and arranged to form a closed loop greater than or about equal to 10 cm in length. The RMS resonance frequency fluctuation is less than or about equal to 100 Hz. The Q-factor can be greater than or about equal to 108. The optical waveguide can exhibit optical loss less than or about equal to 0.2 dB/m for propagation of an optical signal along the optical waveguide. The closed loop path can comprise two or more linked spirals greater than or about equal to 1 meter in length and can occupy an area on the waveguide substrate less than or about equal to 5 cm2.

Abstract translation: 光学装置包括波导基板和光学参考腔。 光学参考腔包括形成在波导衬底上并被布置成形成长度大于或等于10cm的闭环的光波导。 RMS谐振频率波动小于或等于100Hz。 Q因子可以大于或等于108.光波导可以表现出对于光信号沿着光波导传播的小于或等于0.2dB / m的光损耗。 闭环路径可以包括两个或更多个长度大于或等于等于1米的连接螺旋，并且可以占据波导基板上小于或等于5cm 2的区域。

公开(公告)号：US10009103B2

公开(公告)日：2018-06-26

申请号：US15235075

申请日：2016-08-11

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY ,  THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE

Inventor： Kerry Vahala ,  Scott Diddams ,  Jiang Li ,  Xu Yi ,  Hansuek Lee

IPC: H03B17/00 ,  H04B10/2507 ,  H04B10/2575 ,  H04B10/25 ,  H04B10/50 ,  H04L7/00 ,  H03L7/08 ,  H03L7/16

CPC classification number: H04B10/2507 ,  H03B17/00 ,  H03L7/08 ,  H03L7/16 ,  H04B10/2504 ,  H04B10/2575 ,  H04B10/503 ,  H04B2210/006 ,  H04L7/0075 ,  H04L7/0091

Abstract: A microwave-frequency source at frequency fM comprises: a dual optical-frequency reference source, an electro-optic sideband generator, an optical bandpass filter, an optical detector, a reference oscillator, an electrical circuit, and a voltage-controlled oscillator (VCO). The sideband generator modulates dual optical reference signals at v2 and v1 to generate sideband signals at v1±n1fM and v2±n2fM. The bandpass filter transmits sideband signals at v1+N1fM and v2−N2fM. The optical detector generates a beat note at (v2−N2fM)−(v1+N1fM). The beat note and a reference oscillator signal are processed by the circuit to generate a loop-filtered error signal to input to the VCO. Output of the VCO at fM drives the sideband generator and forms the microwave-frequency output signal. The resultant frequency division results in reduced phase noise on the microwave-frequency signal.

公开(公告)号：US09450673B2

公开(公告)日：2016-09-20

申请号：US14605977

申请日：2015-01-26

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY ,  THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE, THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY

Inventor： Kerry Vahala ,  Scott Diddams ,  Jiang Li ,  Xu Yi ,  Hansuek Lee

IPC: H04B10/2507 ,  H04B10/2575 ,  H04B10/25 ,  H04B10/50 ,  H04L7/00 ,  H03L7/08 ,  H03L7/16

CPC classification number: H04B10/2507 ,  H03B17/00 ,  H03L7/08 ,  H03L7/16 ,  H04B10/2504 ,  H04B10/2575 ,  H04B10/503 ,  H04B2210/006 ,  H04L7/0075 ,  H04L7/0091

Abstract: A microwave-frequency source at frequency fM comprises: a dual optical-frequency reference source, an electro-optic sideband generator, an optical bandpass filter, an optical detector, a reference oscillator, an electrical circuit, and a voltage-controlled oscillator (VCO). The sideband generator modulates dual optical reference signals at v2 and v1 to generate sideband signals at v1±n1fM and v2±n2fM. The bandpass filter transmits sideband signals at v1+N1fM and v2−N2fM. The optical detector generates a beat note at (v2−N2fM)−(v1+N1fM). The beat note and a reference oscillator signal are processed by the circuit to generate a loop-filtered error signal to input to the VCO. Output of the VCO at fM drives the sideband generator and forms the microwave-frequency output signal. The resultant frequency division results in reduced phase noise on the microwave-frequency signal.

Abstract translation: 频率fM的微波频率源包括：双光频参考源，电光边带发生器，光带通滤波器，光检测器，参考振荡器，电路和压控振荡器（VCO ）。 边带发生器在v2和v1处调制双光参考信号，以在v1±n1fM和v2±n2fM产生边带信号。 带通滤波器发送v1 + N1fM和v2-N2fM的边带信号。 光学检测器在（v2-N2fM） - （v1 + N1fM）处产生节拍。 拍音和参考振荡器信号由电路处理以产生环路滤波的误差信号以输入到VCO。 在fM处的VCO的输出驱动边带发生器并形成微波频率输出信号。 所得到的分频导致微波频率信号上的相位噪声减小。