Integrated type optical head with coupler

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	Integrated type optical head with coupler
其他题名	Integrated type optical head with coupler
	NIKOLAI, PETROV; SOHN, JIN-SEUNG; CHO, EUN-HYOUNG; LEE, MYUNG-BOK
	2004-03-04
专利权人	SAMSUNG ELECTRONCIS CO., LTD.
公开日期	2004-03-04
授权国家	美国
专利类型	发明申请
摘要	An integrated optical head is provided. In the integrated optical head, a light source emits light. A waveguide guides the light. An input coupler is located at one edge of the waveguide, and couples light emitted from the light source and transmits the coupled light to the waveguide. An output coupler is located at another edge of the waveguide, and couples light emitted from the waveguide and focuses the coupled light on an optical disc. A light path changing unit is installed on the waveguide, and changes the light path of light that has been reflected by the optical disc and then passed through the output coupler. An optical detector receives the light passed through the light path changing unit and converts the received light into an electrical signal in order to detect information from the optical disc Accordingly, an input coupling efficiency and an output coupling efficiency are improved, such that light loss is reduced. Thus, recording and reproduction of an optical head can be improved, and a light, compact, integrated optical head can be obtained.
其他摘要	提供一种集成光学头。在集成光学头中，光源发光。波导引导光。输入耦合器位于波导的一个边缘处，并耦合从光源发射的光并将耦合的光传输到波导。输出耦合器位于波导的另一边缘，并耦合从波导发射的光并将耦合的光聚焦在光盘上。光路改变单元安装在波导上，并改变已被光盘反射然后通过输出耦合器的光的光路。光学检测器接收通过光路改变单元的光并将接收的光转换成电信号，以便检测来自光盘的信息。因此，输入耦合效率和输出耦合效率得到改善，使得光损失是降低。因此，可以改善光学头的记录和再现，并且可以获得轻便，紧凑的集成光学头。
主权项	An integrated optical head comprising: a light source emitting light; a waveguide guiding the light; an input coupler located at one edge of the waveguide, coupling light emitted from the light source and transmitting the coupled light to the waveguide; an output coupler located at another edge of the waveguide, coupling light emitted from the waveguide and focusing the coupled light on an optical disc; a light path changing unit installed on the waveguide, changing the light path of light that has been reflected by the optical disc and then passed through the output coupler; and an optical detector receiving the light passed through the light path converting unit and converting the received light into an electrical signal in order to detect information from the optical disc.
申请日期	2002-12-16
专利号	US20040042377A1
专利状态	失效
申请号	US10/319469
公开（公告）号	US20040042377A1
IPC 分类号	G02B6/12 \| G02B6/122 \| G02B6/124 \| G02B6/30 \| G11B7/12 \| G11B7/124 \| G11B7/135 \| G11B7/1353 \| G11B7/1359 \| G11B7/1372 \| G11B7/1374 \| G11B7/1384
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/181661/52921
专题	半导体激光器专利数据库
作者单位	SAMSUNG ELECTRONCIS CO., LTD.
推荐引用方式 GB/T 7714	NIKOLAI, PETROV,SOHN, JIN-SEUNG,CHO, EUN-HYOUNG,et al. Integrated type optical head with coupler. US20040042377A1[P]. 2004-03-04.