Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1534300 | Optics Communications | 2014 | 4 Pages |
Abstract
We propose and analyze a new integrated waveguide-type red-green-blue (RGB) beam combiner that can contribute to a miniaturization of the compact projection-type displays such as an eyewear projector. The essential point of this beam combiner is that it is composed of three individual waveguides for RGB light inputs, and three directional couplers. The combined output light can be obtained from the single waveguide. The waveguide supports the single mode transmission. The efficiency for output light is as high as 96%, and the size is as small as 0.06×7.8 mm. In addition, the small dependence of the output efficiency on the wavelength and the relatively large fabrication tolerance are obtained.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Akira Nakao, Ryuji Morimoto, Yuya Kato, Yoshiaki Kakinoki, Kosuke Ogawa, Toshio Katsuyama,