Pumping arrangement for fiber amplifiers
文献类型：专利
| 作者 | VAIL EDWARD C; NAGARAJAN RADHAKRISHNAN; RANSOM HARRISON; BOOTH IAN J; KIM, TAE; WOLAK EDMUND L; MAJOR, JO, S.; MACCORMACK STUART; OLESKEVICH TANYA; KIM TAE JIN |
| 发表日期 | 2002-05-16 |
| 专利号 | WO2002013339A3 |
| 著作权人 | SDL PLC |
| 国家 | 世界知识产权组织 |
| 文献子类 | 发明申请 |
| 其他题名 | Pumping arrangement for fiber amplifiers |
| 英文摘要 | An optical gain apparatus has a pump source providing pump energy at a pump wavelength to a gain medium that generates optical energy at a singal wavelength. To minimize disturbance from signal wavelengths appearing in a coupling path between the pump source and the gain medium, an optical attenuator is located in the coupling path that provides a significant degree of attenuation to signal wavelengths, while providing negligible attenuation of pump wavelengths. The attenuator may comprise a grating structure, such as a long period grating or a blazed grating. It may also comprise an angled coupling fiber that is oriented to reflect signal wavelengths out of the coupling path. The end of such a fiber would typically be formed into a microlens, such as a wedge-shaped lens or a biconic lens, and would preferably be coated with a material that is highly reflective at the signal wavelength, but anti-reflective at the pump wavelength. The microlens may also be angled relative to a longitudinal axis of the fiber. Other embodiments include the location of an attenuation component, such as scattering sites, absorbing material, or a refractive index change, at a radial position in the cladding of the optical fiber that affects the signal wavelength but not the pump wavelength. |
| 公开日期 | 2002-05-16 |
| 申请日期 | 2001-08-08 |
| 状态 | 未确认 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/52518]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SDL PLC |
| 推荐引用方式 GB/T 7714 | VAIL EDWARD C,NAGARAJAN RADHAKRISHNAN,RANSOM HARRISON,et al. Pumping arrangement for fiber amplifiers. WO2002013339A3. 2002-05-16. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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