公开(公告)号：EP1803200A4

公开(公告)日：2009-07-22

申请号：EP05853418

申请日：2005-12-08

申请人： IMRA AMERICA INC

发明人： HOFFMAN ROBERT ,  NATI SALVATORE F ,  GU XINHUA ,  LIU ZHENLIN

IPC分类号： H01S3/13

CPC分类号： H01S3/1022 ,  H01S3/0014 ,  H01S3/0401 ,  H01S3/0941 ,  H01S3/10007 ,  H01S3/10046 ,  H01S3/10069

摘要： A method and apparatus for detecting and controlling the conditions needed for starting and maintaining mode-locked operation of a laser system including a fiber oscillator and high power fiber amplifier. The invention is used to monitor the output power and repetition rate of the fiber oscillator and control the operation of the oscillator such that the oscillator obtains and maintains correct mode-locked operation despite changes in environmental conditions such as temperature, and also with changes due to component aging or degradation.

公开(公告)号：EP1815281A4

公开(公告)日：2009-05-06

申请号：EP05725660

申请日：2005-03-14

申请人： IMRA AMERICA INC

发明人： FERMANN MARTIN E ,  IMESHEV GENNADY ,  CHO GYU CHOEN ,  LIU ZHENLIN ,  HARTER DONALD J

IPC分类号： G02B6/02 ,  G02B6/26 ,  H01S3/00 ,  H01S3/067 ,  H01S3/108 ,  H04B10/00

CPC分类号： 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

摘要： 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, low noise wavelength tunable seed source via anti-Stokes frequency shifting can be obtained.

公开(公告)号：EP2274771A4

公开(公告)日：2012-03-07

申请号：EP09758837

申请日：2009-03-11

申请人： IMRA AMERICA INC

发明人： MURAKAMI MAKOTO ,  HU ZHENDONG ,  LIU BING ,  CHE YONG ,  LIU ZHENLIN ,  UEHARA YUZURU

IPC分类号： H01L21/44 ,  C23C14/08 ,  C23C14/28 ,  C23C14/56 ,  H01S3/00

CPC分类号： C23C14/28 ,  C23C14/08 ,  C23C14/564 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/2308