公开(公告)号：US09042004B2

公开(公告)日：2015-05-26

申请号：US13936278

申请日：2013-07-08

Applicant: IMRA AMERICA, INC.

Inventor： Martin E. Fermann ,  Gennady Imeshev ,  Gyu C. Cho ,  Zhenlin Liu ,  Donald J. Harter

IPC: H01S3/067 ,  H01S3/00 ,  H01S3/13 ,  H01S3/094 ,  H01S3/108 ,  H01S3/16 ,  H01S3/23 ,  H01S3/30

CPC classification number: H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/094007 ,  H01S3/1086 ,  H01S3/1301 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/2308 ,  H01S3/2316 ,  H01S3/302

Abstract: By compensating polarization mode-dispersion as well chromatic dispersion in photonic crystal fiber pulse compressors, high pulse energies can be obtained from all-fiber chirped pulse amplification systems. By inducing third-order dispersion in fiber amplifiers via self-phase modulation, the third-order chromatic dispersion from bulk grating pulse compressors can be compensated and the pulse quality of hybrid fiber/bulk chirped pulse amplification systems can be improved. Finally, by amplifying positively chirped pulses in negative dispersion fiber amplifiers, a low noise wavelength tunable seed source via anti-Stokes frequency shifting can be obtained.

Abstract translation: 通过补偿光子晶体光纤脉冲压缩器中的偏振模色散以及色散，可以从全光纤啁啾脉冲放大系统获得高脉冲能量。 通过自相位调制在光纤放大器中产生三阶色散，可以补偿来自大容量光栅脉冲压缩器的三阶色散，可以提高混合光纤/体积啁啾脉冲放大系统的脉冲质量。 最后，通过在负色散光纤放大器中正向啁啾脉冲放大，可以获得通过反斯托克斯频移的低噪声波长可调种子源。

公开(公告)号：US10256597B2

公开(公告)日：2019-04-09

申请号：US15439062

申请日：2017-02-22

Applicant: IMRA AMERICA, INC.

Inventor： Donald J. Harter ,  Gyu C. Cho ,  Zhenlin Liu ,  Martin E. Fermann ,  Xinhua Gu ,  Salvatore F. Nati ,  Lawrence Shah ,  Ingmar Hartl ,  Mark Bendett

IPC: H01S3/11 ,  H01S3/00 ,  H01S3/067 ,  H01S3/108 ,  H01S3/109 ,  H01S3/16 ,  H01S3/23 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/13

Abstract: The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier.

公开(公告)号：US09680280B2

公开(公告)日：2017-06-13

申请号：US13967465

申请日：2013-08-15

Applicant: IMRA AMERICA, INC.

Inventor： Salvatore F. Nati ,  Otho E. Ulrich, Jr. ,  Gyu C. Cho ,  Wayne A. Gillis ,  Donald J. Harter ,  Mark Bendett ,  Ingmar Hartl

IPC: H01S3/00 ,  H01S3/067 ,  H01S3/0941 ,  H01S3/11 ,  H01S3/10 ,  H01S3/105 ,  H01S3/13 ,  H01S3/131 ,  H01S3/139

CPC classification number: H01S3/06779 ,  H01S3/06758 ,  H01S3/0941 ,  H01S3/10015 ,  H01S3/1003 ,  H01S3/10038 ,  H01S3/10046 ,  H01S3/105 ,  H01S3/1112 ,  H01S3/1305 ,  H01S3/1312 ,  H01S3/1394

Abstract: An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.

公开(公告)号：US09590386B2

公开(公告)日：2017-03-07

申请号：US14482093

申请日：2014-09-10

Applicant: IMRA AMERICA, INC.

Inventor： Donald J. Harter ,  Gyu C. Cho ,  Zhenlin Liu ,  Martin E. Fermann ,  Xinhua Gu ,  Salvatore F. Nati ,  Lawrence Shah ,  Ingmar Hartl ,  Mark Bendett

IPC: H01S3/11 ,  H01S3/23 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094 ,  H01S3/108 ,  H01S3/109 ,  H01S3/16

CPC classification number: H01S3/1106 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0085 ,  H01S3/0092 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/094003 ,  H01S3/094019 ,  H01S3/094042 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/1086 ,  H01S3/109 ,  H01S3/11 ,  H01S3/1118 ,  H01S3/1305 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1643 ,  H01S3/235

Abstract: The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier.

Abstract translation: 本发明描述了可用作用于工业设置的用于基于Nd：或Yb：的再生放大器的脉冲源的鲁棒光纤激光器系统。 本发明修改了适应性，并结合了FCPA系统中的几个最新进展，用作这种新型再生放大器的输入源。

公开(公告)号：US20130293947A1

公开(公告)日：2013-11-07

申请号：US13936278

申请日：2013-07-08

Applicant: IMRA America, INC.

Inventor： Martin E. Fermann ,  Gennady Imeshev ,  Gyu C. Cho ,  Zhenlin Liu ,  Donald J. Harter

IPC: H01S3/00

CPC classification number: H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/094007 ,  H01S3/1086 ,  H01S3/1301 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/2308 ,  H01S3/2316 ,  H01S3/302

Abstract: By compensating polarization mode-dispersion as well chromatic dispersion in photonic crystal fiber pulse compressors, high pulse energies can be obtained from all-fiber chirped pulse amplification systems. By inducing third-order dispersion in fiber amplifiers via self-phase modulation, the third-order chromatic dispersion from bulk grating pulse compressors can be compensated and the pulse quality of hybrid fiber/bulk chirped pulse amplification systems can be improved. Finally, by amplifying positively chirped pulses in negative dispersion fiber amplifiers, a low noise wavelength tunable seed source via anti-Stokes frequency shifting can be obtained.