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	Method for driving a semiconductor light source device for transmitting a signal
	MIZUTANI, NATSUHIKO
	2003-02-25
著作权人	CANON KABUSHIKI KAISHA
专利号	US6526075
国家	美国
文献子类	授权发明
其他题名	Method for driving a semiconductor light source device for transmitting a signal
英文摘要	In a driving method or apparatus for driving a semiconductor laser as a light source for optical transmission, oscillation light of the semiconductor laser can be switched between two different polarization modes by modulating a current injected into a portion of a waveguide of the laser. The laser has characteristics that light in both modes is emitted within a polarization-mode switching range of the current and that intensities of the light in both modes respectively vary in accordance with an amount of the current within the polarization-mode switching range. The current injected into the portion of the waveguide is urged to a bias point current in the switching range, and a modulation signal current is superimposed on the bias point current such that the emitted light in at least one of the modes is intensity-modulated in accordance of an amount of the modulation signal current.
公开日期	2003-02-25
申请日期	1998-06-26
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/39393]
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. Method for driving a semiconductor light source device for transmitting a signal. US6526075. 2003-02-25.

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