Optical waveguide device and light source and optical apparatus using the same

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	Optical waveguide device and light source and optical apparatus using the same
其他题名	Optical waveguide device and light source and optical apparatus using the same
	MORIKAWA, AKIHIRO; KASAZUMI, KEN'ICHI; KITAOKA, YASUO; MIZUUCHI, KIMINORI; YAMAMOTO, KAZUHISA
	2004-12-07
专利权人	MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
公开日期	2004-12-07
授权国家	美国
专利类型	授权发明
摘要	An optical waveguide device is provided that can reduce external interference noise. The optical waveguide device includes a substrate, an optical waveguide formed on the substrate, a periodic polarization inversion region formed on the optical waveguide, and an optical thin film formed in a portion of the optical waveguide. The optical waveguide (refractive index: N2) and the optical thin film (refractive index: N1) differ in refractive index dispersion, and the magnitude relationship between the refractive indexes is reversed depending on wavelength. The relationship N1>N2 is established for light having a shorter wavelength, while the relationship N2>N1 is established for light having a longer wavelength.
其他摘要	提供一种可以减少外部干扰噪声的光波导装置。光波导装置包括基板，形成在基板上的光波导，形成在光波导上的周期性极化反转区域，以及形成在光波导的一部分中的光学薄膜。光波导（折射率：N2）和光学薄膜（折射率：N1）的折射率色散不同，并且折射率之间的大小关系根据波长而反转。对于具有较短波长的光建立关系N1> N2，而对于具有较长波长的光建立关系N2> N1。
主权项	An optical waveguide device comprising: a substrate; an optical waveguide formed in the vicinity of a surface of the substrate; and an optical thin film formed in at least a portion of the optical waveguide or formed in contact with at least a portion of the optical waveguide, wherein a plurality of guided waves with different wavelengths propagate in the optical waveguide, a portion of the guided waves that exits from the optical waveguide returns to the optical waveguide again, and the optical thin film prevents reflection of light returning to the optical waveguide from end faces of the optical waveguide or in the vicinity thereof, wherein fundamental light and harmonic light propagate in the optical waveguide, a harmonic light absorption region that comprises the optical thin film and absorbs the harmonic light is provided in the vicinity of an entrance end face of the optical waveguide, and the fundamental light propagates in the harmonic light absorption region and a harmonic light non-absorption region that does not absorb the harmonic light in the optical waveguide, and waveguide mode sizes of the fundamental light in the two regions substantially match.
申请日期	2002-04-16
专利号	US6829080
专利状态	授权
申请号	US10/123892
公开（公告）号	US6829080
IPC 分类号	G02B6/122 \| G02F1/377 \| G02F1/35 \| G11B7/125 \| G02B6/12 \| H01S5/00 \| H01S5/022 \| G02F2/02
专利代理人	-
代理机构	MERCHANT & GOULD P.C.
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/46172
专题	半导体激光器专利数据库
作者单位	MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
推荐引用方式 GB/T 7714	MORIKAWA, AKIHIRO,KASAZUMI, KEN'ICHI,KITAOKA, YASUO,et al. Optical waveguide device and light source and optical apparatus using the same. US6829080[P]. 2004-12-07.

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