Guided-wave optical circuit and method for adjusting a characteristic thereof
文献类型：专利
| 作者 | INOUE, YASUYUKI; OKUNO, MASAYUKI; KAWACHI, MASAO |
| 发表日期 | 1995-09-20 |
| 专利号 | EP0444582B1 |
| 著作权人 | NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
| 国家 | 欧洲专利局 |
| 文献子类 | 授权发明 |
| 其他题名 | Guided-wave optical circuit and method for adjusting a characteristic thereof |
| 英文摘要 | A method for adjusting a characteristic of a guided-wave optical circuit which includes one or more waveguides formed by a substrate, a cladding layer (7, 8) formed on the substrate (9), and a core portion having one or more cores (1, 2) embedded in the cladding layer. The method is carried out by producing a reversible thermal hysteresis phenomenon, after the cladding layer and core portion have been formed. The thermal hysteresis phenomenon is produced in a thermal hysteresis produced region (7a or 13 or 1, 2) preselected so as to include at least a portion of the cladding layer and/or the core portion, thereby adjusting a refractive index difference between the cladding layer and the core portion. To produce a reversible thermal hysteresis phenomenon, the following steps are carried out: raising the temperature of the thermal hysteresis produced region to a predetermined temperature; maintaining the predetermined temperature of the thermal hysteresis produced region for a predetermined time period; and cooling the thermal hysteresis produced region at a predetermined cooling rate. At least one of the values of the predetermined temperature, predetermined time period, and predetermined cooling rate is controlled so that the refractive index difference between the cladding layer and the core portion is adjusted to a desired value, thereby adjusting the characteristic of the guided-wave optical circuit. |
| 公开日期 | 1995-09-20 |
| 申请日期 | 1991-02-25 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/36028]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
| 推荐引用方式 GB/T 7714 | INOUE, YASUYUKI,OKUNO, MASAYUKI,KAWACHI, MASAO. Guided-wave optical circuit and method for adjusting a characteristic thereof. EP0444582B1. 1995-09-20. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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