Semiconductor laser device and coherent optical communication system provided therewith

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	Semiconductor laser device and coherent optical communication system provided therewith
其他题名	Semiconductor laser device and coherent optical communication system provided therewith
	OKAI MAKOTO; KAYANE NAOKI; SAKANO SHINJI
	1990-02-28
专利权人	HITACHI LTD
公开日期	1990-02-28
授权国家	日本
专利类型	发明申请
摘要	PURPOSE:To adjust the width of an oscillating spectral line to be small by a method wherein the relative position of a semiconductor laser to on outer resonator is substantially fixed, and concurrently a control means, which controls the phase of an oscillating light, is provided inside the semiconductor laser. CONSTITUTION:A diffraction grating 2 is provided onto the surface of a substrate 1, an optical guide layer 3, an active layer 4, an anti-melt-back layer 5, and a clad layer 6 are successively grown in layers, and p-type electrodes 71 and 72 and an n-side electrode 8 are built. A single mode fiber 9 serving as an outer resonator is so fixed to the semiconductor laser, which is formed and provided with an inner, resonator as mentioned above, that it is optically coupled with a laser oscillator. By this structure, the width of an oscillating spectral line can be adjusted to be small by changing the ratio of currents which are applied to two or more p-type electrodes 71 and 72 electrically isolated from each other.
其他摘要	目的：通过一种方法将振荡谱线的宽度调节得很小，其中半导体激光器对外谐振器的相对位置基本固定，同时提供控制振荡光相位的控制装置半导体激光器内部。组成：在基板1的表面上提供衍射光栅2，光导层3，有源层4，抗反熔层5和包层6连续生长成层，并且p-构建电极71和72以及n侧电极8。用作外谐振器的单模光纤9固定到半导体激光器上，该半导体激光器形成并设有如上所述的内部谐振器，它与激光振荡器光学耦合。通过这种结构，通过改变施加到彼此电隔离的两个或更多个p型电极71和72的电流比，可以将振荡谱线的宽度调节得很小。
主权项	-
申请日期	1988-08-26
专利号	JP1990060183A
专利状态	失效
申请号	JP1988210714
公开（公告）号	JP1990060183A
IPC 分类号	H04B10/572 \| H01S5/00 \| H01S5/14 \| H04B10/00 \| H04B10/293 \| H04B10/564 \| H01S3/18 \| H04B10/04
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/181661/64733
专题	半导体激光器专利数据库
作者单位	HITACHI LTD
推荐引用方式 GB/T 7714	OKAI MAKOTO,KAYANE NAOKI,SAKANO SHINJI. Semiconductor laser device and coherent optical communication system provided therewith. JP1990060183A[P]. 1990-02-28.

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