Waveguide type optical element with polarization compensator

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	Waveguide type optical element with polarization compensator
其他题名	Waveguide type optical element with polarization compensator
	KOMATSU YOSHIROU
	1985-04-16
专利权人	日本電気株式会社
公开日期	1985-04-16
授权国家	日本
专利类型	发明申请
摘要	PURPOSE:To obtain the title optical element, which is stable to variation of the polarizing condition of outgoing-lights of semiconductor laser and is simple in constitution, by a method wherein the outgoing-lights are conducted to the waveguide type optical element as the polarizing condition has been conserved. CONSTITUTION:Lights exited from single-mode fibers 11 are stopped down by lenses and are injected in semiconductor lasers 12 having a differential gain characteristic or a bistable characteristic. Constant bias current is being always flowed in the semiconductor lasers 12 by a stabilizing current source. The outgoing-lights of the semicondcutor lasers 12 are coupled with polarization conserving fibers 13 and the polarization conserving fibers 13 are connected to the waveguide surface of a Ti diffusion LiNbO3 directional coupler 2X2 optical switch 14. When the outgoing-lights (RZ signals) of the single-mode fibers 11 are injected in the semiconductor lasers 12 having the characteristics as shown in the diagrams (a) and (b), the semiconductor lasers 12 oscillate only for the duration of a signal of ''1'' without depending on the polarizing condition of the injected lights. Moreover, as the semiconductor lasers 12 oscillate in a TE mode without depending upon the polarizing condition of the injected lights in the same manner as ordinary semiconductor lasers, the lasers 12 are enabled to perform a polarization compensating operation.
其他摘要	目的：通过一种方法，获得标题光学元件，该标题光学元件对于半导体激光器的出射光的偏振条件的变化是稳定的并且结构简单，其中出射光作为偏振被传导到波导型光学元件。条件已得到保存。组成：从单模光纤11射出的光被镜头挡住，并被注入具有差分增益特性或双稳态特性的半导体激光器12中。恒定偏置电流总是通过稳定电流源在半导体激光器12中流动。半导体激光器12的出射光与偏振保存光纤13耦合，并且偏振保存光纤13连接到Ti扩散LiNbO3定向耦合器2X2光开关14的波导表面。当出射光（RZ信号）时单模光纤11注入具有如图（a）和（b）所示特性的半导体激光器12中，半导体激光器12仅在“1”信号的持续时间内振荡，而不依赖于注入光的偏振条件。此外，当半导体激光器12以与普通半导体激光器相同的方式在不依赖于注入光的偏振条件的情况下以TE模式振荡时，激光器12能够执行偏振补偿操作。
主权项	-
申请日期	1983-09-21
专利号	JP1985066492A
专利状态	失效
申请号	JP1983174631
公开（公告）号	JP1985066492A
IPC 分类号	H04B10/60 \| G02B6/00 \| G02F1/01 \| G02F1/03 \| G02F1/05 \| G02F3/02 \| H01S5/00 \| H01S5/022 \| H01S5/026 \| H04B10/00 \| H04B10/25 \| H04B10/40 \| H04B10/50 \| H01S3/18 \| H04B9/00
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/181661/67134
专题	半导体激光器专利数据库
作者单位	日本電気株式会社
推荐引用方式 GB/T 7714	KOMATSU YOSHIROU. Waveguide type optical element with polarization compensator. JP1985066492A[P]. 1985-04-16.

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