Optical semiconductor apparatus, driving method therefor, light source apparatus and optical communication system using the same

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	Optical semiconductor apparatus, driving method therefor, light source apparatus and optical communication system using the same
其他题名	Optical semiconductor apparatus, driving method therefor, light source apparatus and optical communication system using the same
	MIZUTANI, NATSUHIKO; SAKATA, HAJIME; FURUKAWA, YUKIO
	1999-03-02
专利权人	CANON KABUSHIKI KAISHA
公开日期	1999-03-02
授权国家	美国
专利类型	授权发明
摘要	An optical semiconductor apparatus includes at least two semiconductor laser portions each having a light waveguide with an active layer and a distributed reflector, and a stimulating unit for independently stimulating the active layers of the light waveguides. The semiconductor laser portions are serially arranged in a light propagation direction. The light waveguides are constructed such that a difference between propagation constants for two different polarization modes in one of the waveguides is different from a difference between propagation constants for the two different polarization modes in the other of the waveguides. When one of injection of a modulation current signal into or application of a modulation voltage to the optical semiconductor apparatus, an oscillation state can be switched between a state in which Bragg wavelengths for one of the two different polarization modes coincide with each other between the light waveguides and a state in which Bragg wavelengths for the other of the two different polarization modes coincide with each other between the light waveguides.
其他摘要	一种光学半导体装置，包括至少两个半导体激光器部分，每个半导体激光器部分具有带有源层和分布式反射器的光波导，以及用于独立地刺激光波导的有源层的激励单元。半导体激光器部分沿光传播方向串联布置。构造光波导使得一个波导中的两个不同偏振模式的传播常数之间的差异不同于另一个波导中的两个不同偏振模式的传播常数之间的差异。当向光学半导体装置注入调制电流信号或向调制电压施加调制电压之一时，可以在两种不同偏振模式之一的布拉格波长在光之间彼此重合的状态之间切换振荡状态。波导和两种不同偏振模式中的另一种的布拉格波长在光波导之间彼此重合的状态。
授权日期	1999-03-02
申请日期	1997-07-31
专利号	US5878066
专利状态	失效
申请号	US08/904448
公开（公告）号	US5878066
IPC 分类号	H01S5/00 \| H01S5/0625 \| H01S5/343 \| H01S5/50 \| H01S5/34 \| H01S5/12 \| H01S5/062 \| H01S5/227 \| H01S5/10 \| H01S5/20 \| H01S5/32 \| H01S3/10
专利代理人	-
代理机构	FITZPATRICK,CELLA,HARPER & SCINTO
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/38968
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	MIZUTANI, NATSUHIKO,SAKATA, HAJIME,FURUKAWA, YUKIO. Optical semiconductor apparatus, driving method therefor, light source apparatus and optical communication system using the same. US5878066[P]. 1999-03-02.

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