Passively temperature-compensated wavelength-tunable device comprising flexed optical gratings and communication systems using such devices
文献类型：专利
| 作者 | JIN, SUNGHO; MAVOORI, HAREESH |
| 发表日期 | 2000-11-14 |
| 专利号 | US6148128 |
| 著作权人 | AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Passively temperature-compensated wavelength-tunable device comprising flexed optical gratings and communication systems using such devices |
| 英文摘要 | In accordance with the invention, a passively temperature-compensated tunable optical grating device comprises a grating, which is fixed at both ends to a support frame, and is mechanically or magnetically flexed so that a tensile strain induced in the grating reconfigures the resonant wavelength of the grating. Preferred embodiments include at least one waveguide grating, a flexing mechanism capable of inducing a latchable change in grating periodicity and at least one negative thermal expansion component which, upon heating, reduces the strain in the grating so that the temperature-induced wavelength shift is substantially cancelled out. The device can reduce the temperature-dependent wavelength change to less than 0.5 nm/100 deg. C, and preferably less than 0.05 nm/100 deg. C. In a preferred embodiment, the packaging assembly also includes a fine-wavelength adjusting mechanism for post-assembly corrective tuning. The device is especially useful in WDM communication systems, particularly for adding or dropping channels, for dynamically gain-equalizing optical amplifiers, for tunable lasers, and for dispersion compensation. |
| 公开日期 | 2000-11-14 |
| 申请日期 | 1998-09-28 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/38774]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED |
| 推荐引用方式 GB/T 7714 | JIN, SUNGHO,MAVOORI, HAREESH. Passively temperature-compensated wavelength-tunable device comprising flexed optical gratings and communication systems using such devices. US6148128. 2000-11-14. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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