Light source device for semiconductor laser | |
NOGUCHI MASARU; MIYAGAWA ICHIRO; HORIKAWA KAZUO | |
1987-12-15 | |
著作权人 | FUJI PHOTO FILM CO LTD |
专利号 | JP1987288811A |
国家 | 日本 |
文献子类 | 发明申请 |
其他题名 | Light source device for semiconductor laser |
英文摘要 | PURPOSE:To make troubles, such as jitter, uneven pitches, etc., avoidable, by constituting a semiconductor laser and/or collimator lens so as to move in order to avoid the variation of the relative positional relation between a light emitting point and the collimator lens caused by the positional movement of the light emitting point. CONSTITUTION:When the light emitting position of a semiconductor laser 10 moves in the lateral direction due to mode hopping, the movement is immediately detected by a light emitting position detecting device 32 and light emitting point position moving information is inputted to a moving device 42 from the detecting device 32. Then the moving device 42 moves the semiconductor laser 10 and/or a collimator lens 24 in the direction, in which the movement of the light emitting point can be cancelled, in accordance with the input. Therefore, even if mode hopping takes place, deflection of a laser beam 16 after passing through the collimator lens 24 does not occur and troubles, such as jitter, uneven pitches, etc., can be avoided. |
公开日期 | 1987-12-15 |
申请日期 | 1987-02-18 |
状态 | 失效 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/59492] |
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. Light source device for semiconductor laser. JP1987288811A. 1987-12-15. |
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