发明名称 |
Short-wavelength laser element doped with rare earth ions, optical amplifier doped with rare earth ions, and wavelength converter doped with rare earth ions |
摘要 |
A first pumping beam at a wavelength of 1210 nm emitted from a first pumping source is focused by a first lens system on an optical fiber. A second pumping beam at a wavelength of 650 nm emitted from a second pumping source passes through a coupler and a second lens system and arrives at the optical fiber to be incident thereon. Tm ions with which a core portion of the optical fiber is doped sequentially experience a ground-state level absorption transition upon absorption of the first pumping beam, an excited-state level absorption transition to an upper laser level upon absorption of the second pumping beam, and a radiative transition from the upper laser level to a ground-state level, thereby emitting light at a wavelength of 460 to 500 nm. The light at a wavelength of 460 to 500 nm emitted from the Tm ions is resonated by a resonator consisting of an incident mirror and an emitting mirror and outputted as a laser beam.
|
申请公布号 |
US5659558(A) |
申请公布日期 |
1997.08.19 |
申请号 |
US19960610884 |
申请日期 |
1996.03.05 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TOHMON, GENJI;OHYA, JUN;UNO, TOMOAKI |
分类号 |
H01S3/067;H01S3/094;H01S3/16;(IPC1-7):H01S3/30 |
主分类号 |
H01S3/067 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|