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.
References
-
-
1)
-
K. Jinguji ,
N. Takato ,
A. Sugita ,
M. Kawachi
.
Mach-Zehnder interferometer type optical waveguide coupler with wavelength-flattenedcoupling ratio.
Electron. Lett
,
17 ,
1326 -
1327
-
2)
-
Miya, T., Takato, N., Hanawa, F., Ohmori, Y., Yamaguchi, M., Tomita, N.: `Arrayed waveguide-type wavelength insensitive coupler for FTTH networks', Tech. Dig. of Opt. Fibre Commun. Conf. (OFC'92), 1992, p. 264.
-
3)
-
M. Kawachi
.
Silica waveguides on silicon and their application to integrated-opticcomponents.
Opt. Quantum Electron.
,
391 -
416
-
4)
-
Takasugi, H., Tomita, N., Uenoya, T., Nakamura, I., Yokoo, Y.: `Design and evaluation of automatic optical fibre operation support system', Proc. 39th Int. Wire and Cable Symp. (IWCS'90), 1990, p. 623–629.
-
5)
-
A. Takagi ,
K. Jinguji ,
M. Kawachi
.
Silica-based waveguide-type wavelength-insensitive couplers (WINC's)with series-tapered coupling structure.
J. Lightwave Technol
,
12 ,
1814 -
1824
-
6)
-
M.D. Feit ,
J.A. Fleck
.
Propagating beam theory of optical fibre cross coupling.
J. Opt. Soc. Am.
,
11 ,
1361 -
1372
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