Title:
MODE-LOCKED LASER DEVICE
Document Type and Number:
Japanese Patent JP3479795
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable a mode-locked double clad fiber laser excited by a wide band diode laser array to generate pulses of the order of picoseconds or femtoseconds.
SOLUTION: 560fsec pulses of maximum power 40pJ and wavelength 1560nm are generated by an Er/Yb fiber oscillator 101. 170fsec pulses of 50pJ can be generated in a cavity which is compensated for dispersion. A negative chirp fiber Bragg grating 105 is added so as to improve a cavity in dispersion controllability, whereby pulses of maximum power 1nJ and width 3psec can be generated. A saturated absorber 118 is used to make an oscillator start generating pulses, and a nonlinear polarization development is used for shaping pulses in a normal state.
Inventors:
Martin e furman
Donald Jay Harter
Donald Jay Harter
Application Number:
JP23535696A
Publication Date:
December 15, 2003
Filing Date:
September 05, 1996
Export Citation:
Assignee:
Imra America Inc.
International Classes:
H01S3/098; H01S3/06; H01S3/067; H01S3/094; (IPC1-7): H01S3/098
Domestic Patent References:
| JP5226759A | ||||
| JP4357892A |
Other References:
Ｆｅｒｍａｎｎ Ｍ． Ｅ． ｅｔ ａｌ．，”Ｅｎｖｉｒｏｍｅｎｔａｌｌｙ ｓａｔａｂｌｅ Ｋｅｒｒｒ−ｔｙｐｅ ｍｏｄｅ−ｌｏｃｋｅｄ ｅｒｂｉｕｍ ｆｉｂｅｒ ｌａｓｅｒ ｐｒｏｄｕｃｉｎｇ ３６０−ｆｓ ｐｕｌｓｅｓ”，Ｏｐｔｉｃｓ Ｌｅｔｔｅｒｓ，Ｖｏｌ．１９， Ｎｏ．１，ｐｐ．４３−４５．
Ｆｅｒｍａｎｎ， Ｍ．Ｅ． ｅｔ ａｌ．，”Ｇｅｎｅｒａｔｉｏｎ ｏｆ １０ ｎＪ ｐｉｃｏｓｅｃｏｎｄ ｐｕｌｓｅｓ ｆｒｏｍ ａ ｍｏｄｅ ｌｏｃｋｅｄ ｆｉｂｒｅ ｌａｓｅｒ”，Ｅｌｅｃｔｒｏｎｉｃｓ Ｌｅｔｔｅｒｓ，Ｖｏｌ．３１， Ｎｏ．３，ｐｐ．１９４−１９５．
Ｆｅｒｍａｎｎ， Ｍ．Ｅ． ｅｔ ａｌ．，”Ｇｅｎｅｒａｔｉｏｎ ｏｆ １０ ｎＪ ｐｉｃｏｓｅｃｏｎｄ ｐｕｌｓｅｓ ｆｒｏｍ ａ ｍｏｄｅ ｌｏｃｋｅｄ ｆｉｂｒｅ ｌａｓｅｒ”，Ｅｌｅｃｔｒｏｎｉｃｓ Ｌｅｔｔｅｒｓ，Ｖｏｌ．３１， Ｎｏ．３，ｐｐ．１９４−１９５．
Attorney, Agent or Firm:
Hiroshi Ohkawa