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	Semiconductor optical amplifying element, semiconductor optical element and method for using these elements
	NITTA ATSUSHI
	1991-11-06
著作权人	キヤノン株式会社
专利号	JP1991248130A
国家	日本
文献子类	发明申请
其他题名	Semiconductor optical amplifying element, semiconductor optical element and method for using these elements
英文摘要	PURPOSE:To obtain an always high gain state by forming regions which are electrically changed in the refractive index of a semiconductor near the end of a semiconductor laser and changing the refractive index of these regions. CONSTITUTION:The constitution to electrically control the refractive index of the waveguide layer parts, i.e. window waveguide layers 7a, 7b in contact with antireflection films 10a, 10b in such a manner that the reflectivity of the antireflection films 10a, 10b is smaller with respect to the wavelength of input light or the peak wavelength at the gain spectra of an active layer 4 is adopted. The equiv. refractive index of the window waveguide layers 7a, 7b is, therefore, changed by a plasma effect. The higher current injection state, i.e. high gain state is obtd. in this way.
公开日期	1991-11-06
申请日期	1990-02-27
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/63895]
专题	半导体激光器专利数据库
作者单位	キヤノン株式会社
推荐引用方式 GB/T 7714	NITTA ATSUSHI. Semiconductor optical amplifying element, semiconductor optical element and method for using these elements. JP1991248130A. 1991-11-06.

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