发明名称 |
Optical fiber, waveguide, and optical active device. |
摘要 |
<p>An optically active device comprising an optical fiber (10), a light source (12) and an optical device (13) is disclosed. The optical fiber (10) comprises a core made of an optical functioning glass doped with Pr<3><+> as an active ion and transmits light at a first wavelength. The light source (12) generates excitation light at a second wavelength shorter than the first wavelength. The optical device (13) directs the excitation light from the light source (12) into the optical fiber (10). Then, Pr<3><+> in the core of the optical fiber (10) is stimulated to emit light at the second wavelength. As a result, an optical function such as optical amplification can be effected at the second wavelength. <IMAGE></p> |
申请公布号 |
EP0470612(A1) |
申请公布日期 |
1992.02.12 |
申请号 |
EP19910113321 |
申请日期 |
1991.08.08 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LIMITED;NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
CHIGUSA, YOSHIKI;ONISHI, MASASHI;KOHGO, TAKASHI;WATANABE, MINORU;SANKAWA, IZUMI |
分类号 |
G02F1/35;H01S3/06;H01S3/063;H01S3/067;H01S3/07;H01S3/0915;H01S3/16;H01S3/17 |
主分类号 |
G02F1/35 |
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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