发明名称 |
Pulse laser apparatus, terahertz measuring apparatus, and therahertz tomographic apparatus |
摘要 |
A pulse laser apparatus includes a laser (1; 4; 50) configured to generate a pulse of a laser beam, a fiber amplifier (2; 9), and a pulse compressor (3; 14,15). The fiber amplifier includes a rare-earth doped fiber (41) 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 |
EP2086074(A2) |
申请公布日期 |
2009.08.05 |
申请号 |
EP20090150747 |
申请日期 |
2009.01.16 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Ouchi, Toshihiko;Katagiri, Takashi;Furusawa, Kentaro |
分类号 |
H01S3/23;G01B11/06;G01B11/24;G01J11/00;G01N21/35;G01N21/3586;G01N21/47;G02F1/37;H01S1/02;H01S3/00;H01S3/067;H01S3/10;H01S3/108 |
主分类号 |
H01S3/23 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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