Method for detecting semiconductor laser mode hopping
文献类型：专利
| 作者 | NOGUCHI MASARU; MIYAGAWA ICHIRO; HORIKAWA KAZUO |
| 发表日期 | 1987-09-01 |
| 专利号 | JP1987198184A |
| 著作权人 | FUJI PHOTO FILM CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Method for detecting semiconductor laser mode hopping |
| 英文摘要 | PURPOSE:To readily detect a mode hopping by observing the light emitting point position of a semiconductor laser by a suitable method, and detecting at least one of longitudinal and lateral movements of the light emitting point position. CONSTITUTION:A mode hopping detector 32 has a half mirror 34 for branching a laser beam 16, a focusing lens 36 for focusing a laser beam branched by the mirror 34 at a predetermined position, and a 2-dimensional position detector 38 disposed at the focusing position. According to this detector 32, the moving state (moving distance and direction) of lateral directions (X, Y direction) of the light emitting point position in a semiconductor laser 10 can be detected, and information regarding the moving state is input to a semiconductor laser 2-dimensional position controller 42 for forming a light emitting point position correcting unit 40 in combination with the detector 32. The controller 42 finely moves the laser 10 in a direction for cancelling the movement of the light emitting point position due to mode hopping based on information from the detector 32. |
| 公开日期 | 1987-09-01 |
| 申请日期 | 1986-02-25 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59445]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJI PHOTO FILM CO LTD |
| 推荐引用方式 GB/T 7714 | NOGUCHI MASARU,MIYAGAWA ICHIRO,HORIKAWA KAZUO. Method for detecting semiconductor laser mode hopping. JP1987198184A. 1987-09-01. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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