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	Optical modulator and optical communication system utilizing the same
	HIROHISA, SANO; HIROAKI, INOUE
	1991-10-30
著作权人	HITACHI LTD
专利号	GB2243456A
国家	英国
文献子类	发明申请
其他题名	Optical modulator and optical communication system utilizing the same
英文摘要	An optical modulator includes two cladding layers (5-1, 5-2) of different conductivity, a light absorption layer (3) formed between the cladding layers for propagating incident light and an optical waveguide layer (20-1, 20-2) formed between the cladding layers and optically connected to the light absorption layer, for propagating the light. The light absorption layer comprises an electroabsorbent material whose refractive index varies in response to a voltage applied between the cladding layers. The optical waveguide layer serves to compensate for the change in refractive index of the light absorption layer by having its refractive index vary in opposition to that of the light absorption layer, which results in a reduction of the chirping quantity of the modulator.; There is also described an optical device comprising a waveguide on which is formed a laser diode, an optical modulator and an insulating layer for electrically isolating the diode from the modulator.
公开日期	1991-10-30
申请日期	1991-04-10
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/66263]
专题	半导体激光器专利数据库
作者单位	HITACHI LTD
推荐引用方式 GB/T 7714	HIROHISA, SANO,HIROAKI, INOUE. Optical modulator and optical communication system utilizing the same. GB2243456A. 1991-10-30.

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