Title :
Mach-Zehnder interferometer type optical waveguide coupler with wavelength-flattened coupling ratio
Author :
Jinguji, K. ; Takato, N. ; Sugita, A. ; Kawachi, M.
Author_Institution :
NTT Opto-Electron. Lab., Ibaraki, Japan
Abstract :
Coupling characteristics of a new optical wavelength-flattened coupler with the Mach-Zehnder configuration are described. A coupling ratio of 20+or-1.9% in a wide wavelength region of 1.25 mu m-1.65 mu m is realised using silica waveguides on Si.
Keywords :
integrated optics; light interferometers; optical couplers; 1.25 to 1.65 micron; Mach-Zehnder interferometer; SiO 2-Si; WINC; optical waveguide coupler; wavelength insensitive coupler; wavelength-flattened coupling ratio; wide wavelength region;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900855
