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	Optical amplifier, optical coherence tomography including optical amplifier, and optical amplification method using optical amplifier
	YOSHIOKA, TAKESHI
	2019-02-28
著作权人	CANON KABUSHIKI KAISHA
专利号	US20190059717A1
国家	美国
文献子类	发明申请
其他题名	Optical amplifier, optical coherence tomography including optical amplifier, and optical amplification method using optical amplifier
英文摘要	An optical amplifier includes a laminated body including two electrode layers and an active layer disposed therebetween. The laminated body includes a waveguide which guides light in an in-plane direction of the active layer. The light which is incident on the laminated body is amplified and emitted from an end surface in the in-plane direction through the waveguide. At least one of the two electrode layers has an electrode group including at least two electrodes which are disposed separately from each other in a waveguide direction of the waveguide. An amplification factor of the incident light is changeable in accordance with a wavelength of the incident light by independently supplying current to different regions in the active layer using the at least two electrodes. Accordingly, the ASE light including light having an unrequired wavelength may be reduced while sufficient light output intensity is obtained in a required wavelength.
公开日期	2019-02-28
申请日期	2018-10-25
状态	申请中
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/62396]
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	YOSHIOKA, TAKESHI. Optical amplifier, optical coherence tomography including optical amplifier, and optical amplification method using optical amplifier. US20190059717A1. 2019-02-28.

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