-

OPT OpenIR > 半导体激光器专利数据库

	-
其他题名	-
	WADA MASARU; SHIMIZU JUICHI; KUME MASAHIRO; ITO KUNIO
	1993-08-13
专利权人	MATSUSHITA ELECTRIC IND CO LTD
公开日期	1993-08-13
授权国家	日本
专利类型	授权发明
摘要	PURPOSE: To measure the noise level of a semiconductor laser when high frequency is superimposed by a simple method, by obtaining difference in driving currents when DC current driving is performed and when the high frequency is superimposed at the same optical output. CONSTITUTION: A DC driving current (B) corresponding to a specified optical output of a semiconductor laser and a driving current (C) when a high frequency current is superimposed are noted. Then, the relationship between the difference between both values (B-C)/B and the noise intensity of the laser light at the optical output level when the high frequency is superimposed shows high correlation. The lower the difference, the lower the noise level. The semiconductor laser 10 is driven by a DC power source 11 and a high frequency power source 12. The power of the laser light is measured by a light detecting element 14, which is provided in front of the laser. The value of the DC driving current is measured by a voltmeter 13. The noise level can be evaluated by the measured value based on the presence or absence of the high frequency current at the same optical output.
其他摘要	目的：通过简单的方法测量高频叠加时半导体激光器的噪声水平，通过获得执行直流电流驱动时的驱动电流差异和高频率叠加在同一光学输出时。组成：注意对应于半导体激光器的指定光输出的DC驱动电流（B）和叠加高频电流时的驱动电流（C）。然后，当叠加高频时，两个值（B-C）/ B之间的差与光输出电平的激光的噪声强度之间的关系显示出高相关性。差异越小，噪音水平越低。半导体激光器10由DC电源11和高频电源12驱动。激光的功率由光检测元件14测量，光检测元件14设置在激光器的前面。通过电压计13测量DC驱动电流的值。可以通过基于在相同光输出处存在或不存在高频电流的测量值来评估噪声水平。
申请日期	1984-06-19
专利号	JP1993054714B2
专利状态	失效
申请号	JP1984124387
公开（公告）号	JP1993054714B2
IPC 分类号	H01L21/66 \| H01S \| H01L \| H01S5/00 \| H01S5/042 \| H01S3/096
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/70365
专题	半导体激光器专利数据库
作者单位	MATSUSHITA ELECTRIC IND CO LTD
推荐引用方式 GB/T 7714	WADA MASARU,SHIMIZU JUICHI,KUME MASAHIRO,et al. -. JP1993054714B2[P]. 1993-08-13.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
JP1993054714B2.PDF（148KB）	专利		开放获取	CC BY-NC-SA	请求全文