公开(公告)号：US20170302051A1

公开(公告)日：2017-10-19

申请号：US15132797

申请日：2016-04-19

Applicant: Lumentum Operations LLC

Inventor： Wei XIONG ,  Michael C. LARSON ,  Paul COLBOURNE ,  Sheldon MCLAUGHLIN

IPC: H01S3/13 ,  H01S3/10 ,  H01S3/081

CPC classification number: H01S3/1305 ,  H01S3/005 ,  H01S3/08027 ,  H01S3/08036 ,  H01S3/0811 ,  H01S3/10061 ,  H01S3/1062 ,  H01S3/1303 ,  H01S5/005 ,  H01S5/0687 ,  H01S5/141

Abstract: A device may include a first photodetector to generate a first current based on an optical power of an optical beam. The device may include a beam splitter to split a portion of the optical beam into a first beam and a second beam. The device may include a wavelength filter to filter the first beam and the second beam. The wavelength filter may filter the second beam differently than the first beam based on a difference between an optical path length of the first beam and an optical path length of the second beam through the wavelength filter. The device may include second and third photodetectors to respectively receive, after the wavelength filter, the first beam and the second beam and to generate respective second currents.

公开(公告)号：US09647827B1

公开(公告)日：2017-05-09

申请号：US14921157

申请日：2015-10-23

Applicant: Raytheon Company

Inventor： Steven R. Wilkinson ,  Bishara Shamee

IPC: H04B10/00 ,  H04L7/00 ,  H04L7/08

CPC classification number: G01S3/00 ,  G02F7/00 ,  H01S3/1303 ,  H01S3/1305 ,  H01S3/1307 ,  H03K3/42 ,  H03K5/13 ,  H03M1/0624 ,  H03M1/0836 ,  H03M1/1215 ,  H03M1/662

Abstract: An apparatus comprises a photonic oscillator circuit configured to generate optical signals that are separated by a uniform delay; radio frequency (RF) generating circuitry configured to receive the optical signals and produce a series of reference clock signals having a same clock signal frequency, wherein each reference clock signal in the series includes a uniform delay from a previous clock signal in the series; and a plurality of analog-to-digital converter (ADC) circuits, wherein an ADC circuit includes a signal input to directly receive an RF input signal that is continuous in time and amplitude, and a clock input to receive a reference clock signal of the repeating series of reference clock signals, wherein the ADC circuits are configured to sample a RF input signal at the frequency of the reference clock signal with the uniform delay to sample interleaved digital values representing the RF signal.

公开(公告)号：US09088130B2

公开(公告)日：2015-07-21

申请号：US13845602

申请日：2013-03-18

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea Advanced Institute of Science and Technology

Inventor： Hong Sig Kim ,  Wang Yuhl Oh ,  Tae Hwan Kim ,  Jae Guyn Lim ,  Han Saem Cho

IPC: H01S5/068 ,  H01S5/0687 ,  H01S5/14 ,  H01S3/13 ,  H01S3/137 ,  H01S5/062

CPC classification number: H01S5/06821 ,  H01S3/1303 ,  H01S3/137 ,  H01S5/06216 ,  H01S5/0687 ,  H01S5/141 ,  H01S5/146

Abstract: An apparatus and method for stabilizing an output of a laser is provided. An optical amplifier oscillates light having a first wavelength band. A filter filters the light having the first wavelength band to output light having a second wavelength band narrower than the first wavelength band. The light having the second wavelength band may correspond to an output of a laser. To stabilize the wavelength center of the output laser, at least a portion of the light having the second wavelength band may be transferred to a fiber Bragg Grating (FBG) through a coupler. By performing feedback of a difference between the signal output from the FBG and a laser modulation signal, an offset corresponding to a lead zirconate titanate (PZT) operating parameter of a Fabry-Perot filter may be controlled to automatically stabilize the wavelength center.

Abstract translation: 提供一种稳定激光输出的装置和方法。 光放大器振荡具有第一波长带的光。 滤光器对具有第一波长带的光进行滤光，以输出具有比第一波长带窄的第二波长带的光。 具有第二波长带的光可以对应于激光的输出。 为了稳定输出激光器的波长中心，具有第二波长带的光的至少一部分可以通过耦合器传送到光纤布拉格光栅（FBG）。 通过执行从FBG输出的信号与激光调制信号之间的差异的反馈，可以控制对应于法布里 - 珀罗滤波器的锆钛酸铅（PZT）工作参数的偏移量以自动稳定波长中心。

公开(公告)号：US20140070895A1

公开(公告)日：2014-03-13

申请号：US14017700

申请日：2013-09-04

Applicant: Seiko Epson Corporation

Inventor： Koji CHINDO

IPC: H03B17/00

CPC classification number: H03B17/00 ,  H01S3/1303 ,  H01S5/0687 ,  Y10T29/49016

Abstract: A manufacturing method of an atom oscillator (an example of a quantum interference device) includes assembling the atom oscillator (an example of the quantum interference device) by respectively disposing a gas cell, a semiconductor laser, a light detector, ICs of a circuit unit, heaters, and coils at desired locations, and adjusting at least one of currents which flow through the coils, and positions and shapes of the coils such that a frequency-temperature characteristic of a pair of resonance light beams becomes approximately flat.

Abstract translation: 原子振荡器（量子干涉装置的实例）的制造方法包括通过分别设置气体电池，半导体激光器，光检测器，电路单元的IC来组装原子振荡器（量子干涉装置的示例） ，加热器和线圈，并且调节流经线圈的电流中的至少一个以及线圈的位置和形状，使得一对谐振光束的频率 - 温度特性变得大致平坦。

公开(公告)号：US20140035687A1

公开(公告)日：2014-02-06

申请号：US14050468

申请日：2013-10-10

Applicant: Raytheon Company

Inventor： Steven R. Wilkinson ,  Matthew T. Cashen ,  Todd O. Clatterbuck

IPC: H03L7/26

CPC classification number: H03L7/26 ,  G04F5/14 ,  G04F13/02 ,  G04G7/00 ,  G04G7/02 ,  H01S3/1303 ,  H01S3/1304 ,  H01S3/1305 ,  H01S3/2383

Abstract: A system for distributing a reference oscillator signal includes a clock having a reference oscillator and a femtosecond laser stabilized by the reference oscillator. The system also includes at least one beamsplitter configured to split the femtosecond laser. The system further includes one or more remote nodes that are spaced from the clock. The remote nodes are configured to generate reference signals based on the split femtosecond laser.

Abstract translation: 用于分配参考振荡器信号的系统包括具有参考振荡器和由参考振荡器稳定的飞秒激光器的时钟。 该系统还包括被配置为分裂飞秒激光的至少一个分束器。 该系统还包括与时钟间隔开的一个或多个远程节点。 远程节点被配置为基于分裂飞秒激光产生参考信号。

公开(公告)号：US08331409B1

公开(公告)日：2012-12-11

申请号：US13008876

申请日：2011-01-18

Applicant: Wei Liang ,  Anatoliy Savchenkov ,  Andrey B. Matsko ,  Vladimir S. Ilchenko ,  David Seidel ,  Lute Maleki

Inventor： Wei Liang ,  Anatoliy Savchenkov ,  Andrey B. Matsko ,  Vladimir S. Ilchenko ,  David Seidel ,  Lute Maleki

IPC: H01S3/13

CPC classification number: H01S3/1303 ,  H01S3/1304 ,  H01S3/139 ,  H01S5/0687

Abstract: Devices and techniques for locking a laser in frequency by locking a reference laser to a reference frequency and an optical interferometer to the reference laser and by locking the laser to a selected frequency produced by the optical interferometer.

Abstract translation: 通过将参考激光器锁定到参考频率并将光学干涉仪锁定到参考激光器并通过将激光器锁定到由光学干涉仪产生的选定频率来锁定激光器的频率的装置和技术。

公开(公告)号：US07873081B1

公开(公告)日：2011-01-18

申请号：US12272324

申请日：2008-11-17

Applicant: Peiliang Gao

Inventor： Peiliang Gao

IPC: H01S3/10

CPC classification number: H01S5/141 ,  G02F1/116 ,  G02F1/332 ,  H01S3/082 ,  H01S3/1068 ,  H01S3/1303 ,  H01S3/1392

Abstract: A tunable laser cavity utilizes a dispersion compensated acousto-optic tunable filter. The wavelength accuracy and stability is achieved by a wavelength locker utilizing two separate intracavity light beams without the need to use beam splitters to significantly reduce the space typically needed by a conventional wavelength locker, and provide more stable operation and easy assembly. The acoustic optical tunable filter is constructed in such a way that two transducers are bonded on the same crystal opposite to each other to create two counter propagating acoustic waves. Dispersion occurs after the collimated light diffracted by the first acoustic wave and is compensated by the second acoustic wave traveling in the opposite direction. By using different laser gain mediums, acoustic wave driving frequencies and acousto-optical crystals, this invention can be used to make tunable lasers in wide range of optical wavelengths.

Abstract translation: 可调激光腔使用色散补偿声光可调谐滤波器。 通过使用两个单独的腔内光束的波长锁定器实现波长精度和稳定性，而不需要使用分束器来显着减少常规波长锁定器通常需要的空间，并且提供更稳定的操作和容易的组装。 声光可调谐滤波器的构造方式是使两个换能器相互结合在同一个晶体上以产生两个反向传播的声波。 在由第一声波衍射的准直光之后发生色散，并且通过沿相反方向行进的第二声波来补偿。 通过使用不同的激光增益介质，声波驱动频率和声光晶体，本发明可用于制造宽范围的光波长的可调谐激光器。

公开(公告)号：US07466729B2

公开(公告)日：2008-12-16

申请号：US11492017

申请日：2006-07-25

Applicant: Alan Kathman ,  John Barnett Hammond ,  Robert TeKolste ,  Alvaro Cruz Cabrera

Inventor： Alan Kathman ,  John Barnett Hammond ,  Robert TeKolste ,  Alvaro Cruz Cabrera

IPC: H01S3/13

CPC classification number: G01J3/02 ,  G01J3/0256 ,  G01J3/26 ,  G01J9/0246 ,  G01J2003/1213 ,  H01S3/1303 ,  H01S5/005 ,  H01S5/0687

Abstract: A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.

Abstract translation: 用于多于一个波长的波长锁定器包括用于相应检测器的具有不同特性的滤波器。 滤光器可以是具有不同自由光谱范围的标准具，例如具有不同的表观或实际厚度。 如果使用三个以上的这样的滤波器来输出偏移周期信号，则可以消除参考检测器并且可以实现在波长范围上的连续操作。

公开(公告)号：US20060192970A1

公开(公告)日：2006-08-31

申请号：US11066683

申请日：2005-02-25

Applicant: Bruce Tiemann

Inventor： Bruce Tiemann

IPC: G01B9/02 ,  H01S3/13

CPC classification number: H01S3/13 ,  H01S3/1303 ,  H01S3/1305

Abstract: Method and apparatus are disclosed that enable lasers to be stabilized in frequency to a high precision while simultaneously enabling rapid re-acquisition of stabilization control loops in the event of frequency locking loss. The principle of operation is to incorporate two etalons, one having a high finesse for frequency high stability, and one having a low finesse for wide error signal locking range, and electronics that pass control between two control systems in such a manner that any loss of frequency locking is rapidly re-acquired.

Abstract translation: 公开了使激光器能够以高精度稳定的方法和装置，同时在频率锁定损失的情况下能够快速重新采集稳定控制回路。 操作原理是包含两个标准具，一个具有高频率高稳定性的技术，另一个具有低误差信号锁定范围的精细度，以及两个控制系统之间的控制，使得任何损失 频率锁定被快速重新获得。

公开(公告)号：US06807205B1

公开(公告)日：2004-10-19

申请号：US09903425

申请日：2001-07-10

Applicant: Hans-Stephan Albrecht ,  Uwe Stamm ,  Wolfgang Zschocke

Inventor： Hans-Stephan Albrecht ,  Uwe Stamm ,  Wolfgang Zschocke

IPC: H01S300

CPC classification number: H01S3/225 ,  H01S3/1303

Abstract: A method for operating an excimer or molecular fluorine laser system at a stabilized wavelength includes generating a laser beam and directing a beam portion through a wavelength measurement system, calibrating the wavelength measurement system to an absolute reference, determining the wavelength of the laser beam including figuring in a drift compensation value of the wavelength, and tuning the wavelength to a target wavelength when the determined wavelength differs from the target wavelength.

Abstract translation: 用于以稳定的波长操作受激准分子或分子氟激光系统的方法包括产生激光束并将光束部分引导通过波长测量系统，将波长测量系统校准为绝对参考，确定激光束的波长，包括计算 在波长的漂移补偿值中，并且当所确定的波长与目标波长不同时，将波长调谐到目标波长。