公开(公告)号：US20200287345A1

公开(公告)日：2020-09-10

申请号：US16809314

申请日：2020-03-04

申请人： nLIGHT, Inc.

发明人： Tyson Lowder

IPC分类号： H01S3/30 ,  H01S3/067 ,  H01S3/094

摘要： Fiber laser amplification systems and methods are disclosed for use with a chirally coupled core (3C) optical fiber enabling the generation of a high-power output beam having a controlled stable polarization state. Vector modulation instabilities which typically induce undesirable sidebands in 3C fiber optics are greatly reduced even at high peak powers, enabling operation of the up to power levels limited mainly by stimulated Raman scattering (SRS). Polarization extinction ratios (PER) demonstrate long-term stability and minimal degradation due to changes in system temperature. Delays in reaching stable operation during start-up are also greatly reduced.

公开(公告)号：US20170187160A1

公开(公告)日：2017-06-29

申请号：US15392925

申请日：2016-12-28

申请人： nLIGHT, Inc.

发明人： Tyson Lowder ,  Timothy N. Kutscha ,  Dennis McCal ,  Timothy S. McComb ,  Jared Green

IPC分类号： H01S3/10 ,  H01S3/106 ,  H01S3/067

CPC分类号： H01S3/06754 ,  B23K26/06 ,  H01S3/005 ,  H01S3/0085 ,  H01S3/067 ,  H01S3/1003 ,  H01S3/10038 ,  H01S3/10046 ,  H01S3/10084 ,  H01S3/10092

摘要： A pulse shaper includes a seed laser situated to emit laser pulses, an amplitude modulator situated to receive one or more laser pulse bursts from the seed laser, and a pulse signal generator situated to send a seed pulse signal with a predetermined delay to the seed laser so that the seed laser emits the laser pulses in one or more laser pulse bursts at a selected frequency with each laser pulse burst having a selected number of laser pulses and a selected temporal spacing between laser pulses in the laser pulse burst and situated to send an amplitude pulse signal so that the amplitude modulator adjusts the amplitude of at least one laser pulse in each laser pulse burst.

公开(公告)号：US09837784B2

公开(公告)日：2017-12-05

申请号：US15392925

申请日：2016-12-28

申请人： nLIGHT, Inc.

发明人： Tyson Lowder ,  Timothy N. Kutscha ,  Dennis McCal ,  Timothy S. McComb ,  Jared Green

IPC分类号： H01S3/30 ,  H01S3/067 ,  H01S3/00 ,  H01S3/10 ,  B23K26/06

CPC分类号： H01S3/06754 ,  B23K26/06 ,  H01S3/005 ,  H01S3/0085 ,  H01S3/067 ,  H01S3/1003 ,  H01S3/10038 ,  H01S3/10046 ,  H01S3/10084 ,  H01S3/10092

摘要： A pulse shaper includes a seed laser situated to emit laser pulses, an amplitude modulator situated to receive one or more laser pulse bursts from the seed laser, and a pulse signal generator situated to send a seed pulse signal with a predetermined delay to the seed laser so that the seed laser emits the laser pulses in one or more laser pulse bursts at a selected frequency with each laser pulse burst having a selected number of laser pulses and a selected temporal spacing between laser pulses in the laser pulse burst and situated to send an amplitude pulse signal so that the amplitude modulator adjusts the amplitude of at least one laser pulse in each laser pulse burst.

公开(公告)号：US09806488B2

公开(公告)日：2017-10-31

申请号：US15197443

申请日：2016-06-29

申请人： nLIGHT, Inc.

发明人： Tyson Lowder ,  Timothy N. Kutscha

IPC分类号： H01S3/10 ,  H01S3/094 ,  H01S3/067

CPC分类号： H01S3/094076 ,  H01S3/06754 ,  H01S3/10007 ,  H01S3/10038 ,  H01S3/10069

摘要： A method includes applying a boost pump signal to a pump laser of a laser system based on a preceding off duration associated with the laser system, and applying a forward pump signal to the pump laser. A laser system includes a seed laser situated to generate seed optical pulses, a pump laser situated to generate pump optical radiation, a fiber amplifier situated to receive the pump optical radiation and the seed optical pulses, and a controller situated to select a pump boost duration or pump boost magnitude based on an off duration associated with the laser system.

公开(公告)号：US20170005451A1

公开(公告)日：2017-01-05

申请号：US15197443

申请日：2016-06-29

申请人： nLIGHT, Inc.

发明人： Tyson Lowder ,  Timothy N. Kutscha

IPC分类号： H01S3/094 ,  H01S3/10 ,  H01S3/067

CPC分类号： H01S3/094076 ,  H01S3/06754 ,  H01S3/10007 ,  H01S3/10038 ,  H01S3/10069

摘要： A method includes applying a boost pump signal to a pump laser of a laser system based on a preceding off duration associated with the laser system, and applying a forward pump signal to the pump laser. A laser system includes a seed laser situated to generate seed optical pulses, a pump laser situated to generate pump optical radiation, a fiber amplifier situated to receive the pump optical radiation and the seed optical pulses, and a controller situated to select a pump boost duration or pump boost magnitude based on an off duration associated with the laser system.

摘要翻译： 一种方法包括：基于与激光系统相关联的先前关闭持续时间，将激励泵信号应用于激光系统的泵浦激光器，以及向泵激光器施加正向泵浦信号。 激光系统包括位于产生种子光脉冲的种子激光器，位于产生泵浦光辐射的泵激光器，位于接收泵浦光辐射和种子光脉冲的光纤放大器，以及控制器，其位于选择泵提升持续时间 或基于与激光系统相关联的关闭持续时间的泵升压幅度。