发明名称 |
OPTICAL FIBER AMPLIFIER AND OPTICAL AMPLIFYING METHOD EMPLOYING IT, LASER OSCILLATING METHOD, LASER AMPLIFIER AND LASER OSCILLATOR, AND LASER AND LASER MACHINING APPARATUS BOTH EMPLOYING LASER OSCILLATOR |
摘要 |
A small size and high efficiency laser oscillation apparatus capable of obtaining high output and high beam quality laser light is provided. First waveguide (21) (refractive index= n1) for transmitting excitation light, second waveguide (22) composed of core (23) (refractive index= n3) for generating laser light and clad (24) (refractive index= n2) for transmitting the excitation light, and third waveguide (25) (refractive index= n4) including first waveguide 21 and second waveguide 22 are provided. Light amplifying fiber (20), in which the refractive indices are set so as to satisfy the relation: n1 < n4 < n2 < n3, is used and excised by semiconductor lasers (10a) and (10b). |
申请公布号 |
EP1731936(A4) |
申请公布日期 |
2006.12.13 |
申请号 |
EP20050721663 |
申请日期 |
2005.03.30 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAGAYASU, DOUKEI |
分类号 |
G02B6/28;H01S3/06;H01S3/00;H01S3/067;H01S3/094;H01S3/0941;H01S3/10 |
主分类号 |
G02B6/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|