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	Oscillation polarization mode selective semiconductor laser, light transmitter and optical communication system using the laser
	NITTA, JUN, C/O CANON KABUSHIKI KAISHA
	1999-01-20
著作权人	CANON KABUSHIKI KAISHA
专利号	EP0668642B1
国家	欧洲专利局
文献子类	授权发明
其他题名	Oscillation polarization mode selective semiconductor laser, light transmitter and optical communication system using the laser
英文摘要	An oscillation polarization mode selective semiconductor laser for selectively performing one of oscillations in different polarization modes, is provided. The semiconductor laser includes a substrate, a laser structure formed on the substrate, and a phase shift region formed in the laser structure. The laser structure includes an active region in which population inversion is established by a current injection thereinto. At least a portion of the phase shift region has a strained quantum well structure in which degrees of a change in refractive index for internal light in different polarization modes due to a current injection thereinto are different from each other. The polarization mode of a light output from the laser can be changed by a small amount of current injected into the phase shift region, and fluctuation in the output intensity can be suppressed during a transition operation in polarization mode.
公开日期	1999-01-20
申请日期	1995-02-16
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/45671]
专题	半导体激光器专利数据库
作者单位	CANON KABUSHIKI KAISHA
推荐引用方式 GB/T 7714	NITTA, JUN, C/O CANON KABUSHIKI KAISHA. Oscillation polarization mode selective semiconductor laser, light transmitter and optical communication system using the laser. EP0668642B1. 1999-01-20.

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