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	Optical pickup apparatus, integrated circuit, and method for controlling laser output of optical pickup apparatus
	UCHIYAMA, HISAYOSHI; ARAI, MASASHI; KOJIMA, HIROSHI; KURIHARA, RUI
	2013-04-23
著作权人	SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
专利号	US8427917
国家	美国
文献子类	授权发明
其他题名	Optical pickup apparatus, integrated circuit, and method for controlling laser output of optical pickup apparatus
英文摘要	An optical-pickup apparatus includes: a first laser light source including a first laser diode to emit a laser beam having a first wavelength, and a back-monitor photodetector to receive the laser beam emitted in a backward direction, not being an optical-disc direction, and output a first monitor signal; a second laser-light source including a second laser diode to emit a laser beam having a second wavelength; a light-receiving circuit including a front-monitor photodetector to receive the laser beam emitted in a forward direction, being the optical-disc direction, and output a second monitor signal, and a switch circuit to be inputted with the first and second monitor signals, and output the first or second monitor signal according to a switch signal; and first and second drive circuits to drive the first and second laser diodes according to the first and second monitor signals outputted from the light-receiving circuit, respectively.
公开日期	2013-04-23
申请日期	2012-03-16
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/32961]
专题	半导体激光器专利数据库
作者单位	SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
推荐引用方式 GB/T 7714	UCHIYAMA, HISAYOSHI,ARAI, MASASHI,KOJIMA, HIROSHI,et al. Optical pickup apparatus, integrated circuit, and method for controlling laser output of optical pickup apparatus. US8427917. 2013-04-23.

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