To provide a reliable optical waveguide with high transmission efficiency and high optical coupling efficiency relative to light-emitting/receiving elements, and an electronic apparatus having such an optical waveguide.
An optical waveguide 1 includes: a region in the vicinity of a light incident end part 1A thereof composed of an SI portion with a refractive index profile of a step index type on a line on a cross section; and regions not in the vicinity of the light incident end part 1A composed of a GI portion with a refractive index profile of a graded index type. A refractive index profile of a step index type refers to distribution in which a refractive index changes stepwise, and a refractive index profile of a graded index type refers to distribution which has a region with a high refractive index and regions adjoining the both side thereof with a low refractive index, in which the refractive index changes gradually.
TAKAYAMA SHOTARO
MORIYA KIMIO
| JP2005331879A | 2005-12-02 |
JPN6012052918; Ｙｕｓｕｋｅ Ｈｉｒｏｂｅ ａｎｄ Ｔａｋａａｋｉ Ｉｓｈｉｇｕｒｅ: 'Ｆｏｕｒ-Ｃｈａｎｎｅｌ Ｐｏｌｙｍｅｒ Ｏｐｔｉｃａｌ Ｗａｖｅｇｕｉｄｅ ｗｉｔｈ Ｗ-ｓｈａｐｅｄ Ｉｎｄｅｘ Ｐｒｏｆｉｌｅ Ｃｏｒｅｓ ａｎｄ Ｉｔｓ Ｌｏｗ Ｉｎｔｅｒ-Ｃｈａｎｎｅｌ Ｃ' ＩＥＥＥ Ｌａｓｅｒｓ ａｎｄ Ｅｌｅｃｔｒｏ-Ｏｐｔｉｃｓ Ｓｏｃｉｅｔｙ， ２００８． ＬＥＯＳ ２００８． ２１ｓｔ Ａｎｎｕａｌ Ｍｅｅｔｉｎｇ ｏｆ ｔｈｅ , 200811, ｐｐ． ４４３ - ４４４
朝比 一夫
Next Patent: OPTICAL WAVEGUIDE AND ELECTRONIC APPARATUS