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	Optical information recording/reproducing apparatus, optical information recording/reproducing method and data archiving system
	NISHIMURA, KOUICHIROU; NAKAI, NOBUO
	2016-03-24
著作权人	HITACHI-LG DATA STORAGE, INC.
专利号	US20160085212A1
国家	美国
文献子类	发明申请
其他题名	Optical information recording/reproducing apparatus, optical information recording/reproducing method and data archiving system
英文摘要	In a hologram recording/reproducing apparatus where a wavelength-variable laser diode having the external resonator structure is used as its light-source, stable recording/reproducing quality is ensured with respect to a change in the recording/reproducing wavelength against the expansion or contraction of a hologram medium caused by the hologram recording and the temperature change. When the output wavelength from the wavelength-variable laser diode is changed to a predetermined target wavelength, the temperature of the laser light-emission part of the wavelength-variable laser diode is controlled by a temperature control element so that the wavelength band, within which the light-emission power of the laser light-emission spectrum is higher than a predetermined light-emission power, includes the above-described predetermined target wavelength.
公开日期	2016-03-24
申请日期	2015-09-16
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/59036]
专题	半导体激光器专利数据库
作者单位	HITACHI-LG DATA STORAGE, INC.
推荐引用方式 GB/T 7714	NISHIMURA, KOUICHIROU,NAKAI, NOBUO. Optical information recording/reproducing apparatus, optical information recording/reproducing method and data archiving system. US20160085212A1. 2016-03-24.

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