Method and system for operating a laser device employing an integral power-regulation sensor | |
SADLER, JOHN W.; DORSEL, ANDREAS N.; MITCHELL, J. ROBERT; TROLL, MARK A. | |
1998-06-09 | |
著作权人 | AGILENT TECHNOLOGIES INC |
专利号 | US5763870 |
国家 | 美国 |
文献子类 | 授权发明 |
其他题名 | Method and system for operating a laser device employing an integral power-regulation sensor |
英文摘要 | A method and system of operating a laser device includes utilizing an integral power-regulation sensor of the laser device to detect energy back reflected from an object of interest and then using the detected signal as a basis for determining a characteristic related to the object of interest. In the preferred embodiment, the determined characteristic is the position of the beam focus relative to a surface of the object. Also in the preferred embodiment, the integral power-regulation sensor is disconnected from power-regulation circuitry during the focusing operation. Interaction of the back reflected energy and the outgoing beam can be reduced by introducing beam rotation, such as by providing a quarter-wave plate along the beam path. Focusing sensitivity can be increased by locating reflective targets over the surface and by executing AC measurements to filter DC components from the signal. |
公开日期 | 1998-06-09 |
申请日期 | 1996-12-13 |
状态 | 失效 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/34568] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | AGILENT TECHNOLOGIES INC |
推荐引用方式 GB/T 7714 | SADLER, JOHN W.,DORSEL, ANDREAS N.,MITCHELL, J. ROBERT,et al. Method and system for operating a laser device employing an integral power-regulation sensor. US5763870. 1998-06-09. |
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