公开(公告)号：US10050407B1

公开(公告)日：2018-08-14

申请号：US15647772

申请日：2017-07-12

Applicant: Raytheon Company

Inventor： Javier H. Fernandez ,  Todd O. Clatterbuck ,  Gabriel N. Price ,  Andrew N. Daniele ,  Michael S. Lackey ,  Chon Thai ,  Darcy Bibb

IPC: H01S3/13 ,  H01S3/137 ,  H01S5/0687 ,  H01S3/136 ,  H01S5/0683 ,  H01S5/068

Abstract: Generally discussed herein are systems, devices, and methods for providing a frequency stabilized optical frequency comb, including frequency stabilizing the optical frequency comb to a laser that is frequency stabilized to an optical reference cavity, generating a low frequency electrical signal from the optical frequency comb, comparing the generated low frequency electrical signal to a reference low frequency electrical signal, determining an optical reference cavity drift based on the comparison, and then adjusting a frequency of the laser in response to the determined optical reference cavity drift.

公开(公告)号：US09300109B2

公开(公告)日：2016-03-29

申请号：US14153224

申请日：2014-01-13

Applicant: Raytheon Company

Inventor： Kevin Knabe ,  Andrew N. Daniele ,  Victor Leyva

IPC: H01S3/13 ,  H01S3/131 ,  H01S3/136 ,  H01S3/139

CPC classification number: H01S3/13 ,  H01S3/06791 ,  H01S3/1109 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/1317 ,  H01S3/136 ,  H01S3/139

Abstract: A servo system includes multiple servo channels being driven by a common error signal. Each channel has a controller that receives an error signal and provides a drive signal to a driver. The servo channels are arranged serially, with a drive signal from one controller forming the error signal for a downstream controller. As a result, the downstream controller does not attempt to correct for phase error directly, but instead attempts to keep the upstream driver at or near its operational midpoint. The servo channels can be arranged in order of decreasing controller bandwidth, from fastest to slowest. In contrast with a parallel configuration, in which servo channels all simultaneously receive a common error signal, the serial configuration can allow each controller to use its full bandwidth, can eliminate crosstalk between servo channels, and can prevent saturation of upstream drive signals.

Abstract translation: 伺服系统包括由公共误差信号驱动的多个伺服通道。 每个通道具有控制器，其接收错误信号并向驱动器提供驱动信号。 伺服通道串联布置，来自一个控制器的驱动信号形成用于下游控制器的误差信号。 因此，下游控制器不会直接尝试纠正相位误差，而是试图将上游驱动器保持在其操作中点处或其附近。 可以按照从最快到最慢的控制器带宽降低顺序排列伺服通道。 与其中伺服通道同时接收公共误差信号的并行配置相反，串行配置可以允许每个控制器使用其全部带宽，可以消除伺服通道之间的串扰，并且可以防止上游驱动信号的饱和。

公开(公告)号：US10096968B1

公开(公告)日：2018-10-09

申请号：US15621569

申请日：2017-06-13

Applicant: Raytheon Company

Inventor： Javier H. Fernandez ,  Todd O. Clatterbuck ,  Andrew N. Daniele ,  Michael S. Lackey ,  Darcy Bibb ,  Chon Thai

IPC: H01S3/13 ,  H01S3/11

Abstract: Generally discussed herein are systems, devices, and methods for locking an optical frequency comb. A device may include comb error measurement and control circuitry to receive a beat tone and carrier envelope offset of an optical frequency comb and provide a fast and slow repetition rate control and a fast and slow carrier envelope offset control. The repetition rate controls and carrier envelope offset controls to control actuators of an optical frequency comb generator.

公开(公告)号：US20150200519A1

公开(公告)日：2015-07-16

申请号：US14153224

申请日：2014-01-13

Applicant: Raytheon Company

Inventor： Kevin Knabe ,  Andrew N. Daniele ,  Victor Leyva

IPC: H01S3/13

CPC classification number: H01S3/13 ,  H01S3/06791 ,  H01S3/1109 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/1317 ,  H01S3/136 ,  H01S3/139

Abstract: A servo system includes multiple servo channels being driven by a common error signal. Each channel has a controller that receives an error signal and provides a drive signal to a driver. The servo channels are arranged serially, with a drive signal from one controller forming the error signal for a downstream controller. As a result, the downstream controller does not attempt to correct for phase error directly, but instead attempts to keep the upstream driver at or near its operational midpoint. The servo channels can be arranged in order of decreasing controller bandwidth, from fastest to slowest. In contrast with a parallel configuration, in which servo channels all simultaneously receive a common error signal, the serial configuration can allow each controller to use its full bandwidth, can eliminate crosstalk between servo channels, and can prevent saturation of upstream drive signals.

Abstract translation: 伺服系统包括由公共误差信号驱动的多个伺服通道。 每个通道具有控制器，其接收错误信号并向驱动器提供驱动信号。 伺服通道串联布置，来自一个控制器的驱动信号形成用于下游控制器的误差信号。 因此，下游控制器不会直接尝试纠正相位误差，而是试图将上游驱动器保持在其操作中点处或其附近。 可以按照从最快到最慢的控制器带宽降低顺序排列伺服通道。 与其中伺服通道同时接收公共误差信号的并行配置相反，串行配置可以允许每个控制器使用其全部带宽，可以消除伺服通道之间的串扰，并且可以防止上游驱动信号的饱和。