Laser with coupled optical waveguides
文献类型：专利
| 作者 | POCHOLLE, JEAN-PAUL; LALLIER, ERIC; PAPUCHON, MICHEL |
| 发表日期 | 1994-05-10 |
| 专利号 | US5311540 |
| 著作权人 | THOMSON COMPOSANTS MILITAIRES ET SPATIAUX |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Laser with coupled optical waveguides |
| 英文摘要 | PCT No. PCT/FR91/00715 Sec. 371 Date Apr. 28, 1992 Sec. 102(e) Date Apr. 28, 1992 PCT Filed Sep. 10, 1991 PCT Pub. No. WO92/04748 PCT Pub. Date Mar. 19, 1992.The invention relates to lasers, and more particularly to solid state lasers such as neodymium on lithium niobate crystal lasers. The invention provides a structure with several juxtaposed optical waveguides (12) sufficiently close to each other laterally to be coupled laterally. In order to take into account the risks of inhomogeneity in the refractive indices or inaccuracies in the dimensions which would alter the distribution of the electromagnetic field of the propagation supermode in the coupled structure, it is proposed to act on the value of the index of propagation in each guide using an individual control (generally electrical). Because of the variation in index, individually controlled, phase differences in the laser wave between the different guides are produced and these phase differences react on the composition of the electromagnetic field defining the supermode. It is possible to go as far as modifying the directivity of the laser beam by this electrical control. The control is preferably achieved by electrodes (14) placed in the vicinity of each guide. The guides are made of an electro-optical material such as lithium niobate, and neodymium doping, for example, allows the laser effect to appear in the very interior of the guides. |
| 公开日期 | 1994-05-10 |
| 申请日期 | 1991-09-10 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/44606]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | THOMSON COMPOSANTS MILITAIRES ET SPATIAUX |
| 推荐引用方式 GB/T 7714 | POCHOLLE, JEAN-PAUL,LALLIER, ERIC,PAPUCHON, MICHEL. Laser with coupled optical waveguides. US5311540. 1994-05-10. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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