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	Control method and control circuit for laser diode, and optical transmitter using the same
	HATTORI, KEITA
	2005-12-29
著作权人	APRESIA SYSTEMS, LTD.
专利号	US20050286575A1
国家	美国
文献子类	发明申请
其他题名	Control method and control circuit for laser diode, and optical transmitter using the same
英文摘要	A control method for a laser diode is conducted such that optical output and OMA (optical modulation amplitude) or extinction ratio of the laser diode are controlled while modulating the optical output of the laser diode by applying a bias current and a modulation current to the laser diode. The method has: a first step of measuring the optical output of the laser diode; a second step of measuring a slope efficiency or a corresponding value of the slope efficiency while conducting APC (automatic power control) to adjust the bias current such that the optical output coincides with a predetermined value; and a third step of adjusting the modulation current by AAC (automatic amplitude control) according to the slope efficiency or the corresponding value of the slope efficiency such that the OMA or extinction ratio coincides with a predetermined value.
公开日期	2005-12-29
申请日期	2005-01-26
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/57314]
专题	半导体激光器专利数据库
作者单位	APRESIA SYSTEMS, LTD.
推荐引用方式 GB/T 7714	HATTORI, KEITA. Control method and control circuit for laser diode, and optical transmitter using the same. US20050286575A1. 2005-12-29.

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