Title :
Silica-based line-symmetric series-tapered (LSST) broadband directional coupler with asymmetric guides only in their parallel coupling regions
Author :
Takagi, A. ; Takato, N. ; Hida, Y. ; Oguchi, Toshiki ; Nozawa, Takuya
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki
fDate :
8/29/1996 12:00:00 AM
Abstract :
Line-symmetric series-tapered (LSST) broadband directional couplers with asymmetric guides only in their parallel coupling regions are designed and fabricated using silica waveguides on Si. These couplers, which provide any wavelength-flattened response over the 1.3-1.55 μm range, are realised with a more detailed broadband coupling ratio design than a conventional LSST coupler
Keywords :
integrated optics; optical communication equipment; optical directional couplers; optical losses; 1.3 to 1.55 micron; Si; SiO2-Si; asymmetric guides; broadband coupling ratio design; broadband directional coupler; line-symmetric series-tapered coupler; parallel coupling regions; silica waveguides on Si; silica-based coupler; wavelength-flattened response;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19961159
