发明名称 |
PULSE LASER APPARATUS, TERAHERTZ MEASURING APPARATUS, AND TERAHERTZ TOMOGRAPHIC APPARATUS |
摘要 |
A pulse laser apparatus includes a laser configured to generate a pulse of a laser beam, a fiber amplifier, and a pulse compressor. The fiber amplifier includes a rare-earth doped fiber that exhibits normal dispersion at a wavelength of the laser beam generated from the laser. The pulse laser apparatus further includes a unit configured to give a loss to energy portions in a wavelength region corresponding to a zero-dispersion wavelength of the rare-earth doped fiber and/or a wavelength region longer than the zero-dispersion wavelength within a wavelength spectrum of the laser beam having been chirped in the fiber amplifier. |
申请公布号 |
US2011210252(A1) |
申请公布日期 |
2011.09.01 |
申请号 |
US201113093804 |
申请日期 |
2011.04.25 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
OUCHI TOSHIHIKO;KATAGIRI TAKASHI;FURUSAWA KENTARO |
分类号 |
G01J5/00;G01J3/10;H01S3/067;H01S3/13 |
主分类号 |
G01J5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|