Abstract
Directional 2×2 couplers with coupling ratio insensitive to wavelength are required for branching/combining optical signals in a wide wavelength region. Such wavelength-insensitive couplers (WINC) have been realized in a fiber-optic configuration by fusing two single-mode fibers with slightly different parameters to each other and tapering them together.1 However, this type of fiber-optic WINC configuration appears to have some limitations in terms of its reproducibility, productivity, and suitability to integration. A possible approach to overcome these problems is the use of waveguide technologies to form integrated-optic WINCs. This paper describes the novel design and fabrication of the waveguide WINCs by using high silica on Si technologies.2,3
© 1990 Optical Society of America
PDF ArticleMore Like This
T. Miya, N. Takato, F. Hanawa, Y. Ohmori, M. Yamaguchi, and N. Tomita
FA5 Optical Fiber Communication Conference (OFC) 1992
Norio Takato, Tsutomu Kitoh, Fumiaki Hanawa, and Izumi Sankawa
PD24 Optical Fiber Communication Conference (OFC) 1993
Thomas E. Murphy, Brent E. Little, and Henry I. Smith
RTuA5 Integrated Photonics Research (IPR) 1999