Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2005-05-10
2005-05-10
Glick, Edward J. (Department: 2882)
Optical waveguides
With optical coupler
Particular coupling structure
C385S018000, C398S081000
Reexamination Certificate
active
06892003
ABSTRACT:
An optical signal, which is to become the subject of dispersion compensation, is split by optical combining/splitting unit2, and each frequency component of the optical signal that is split is reflected by the corresponding reflective mirror30included in reflective mirror group3to apply a predetermined phase shift to the respective frequency components Each reflected frequency component is then combined using optical combining/splitting unit2, to give dispersion compensated optical signal Furthermore, in regards to reflective mirror group3, which is used to apply phase shift to each frequency component of an optical signal, each of the respective plurality of reflective mirrors30is made a movable mirror having a movable reflection position that reflects the frequency components. Through this, dispersion that develops in an optical signal may be compensated with favorable controllability and high accuracy. Therefore, the precision and controllability of dispersion compensation will become superior, and realized is a variable dispersion compensator having a miniaturized optical circuit, and an optical transmission system comprising such variable dispersion compensator,
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Iwashima Toru
Kanie Tomohiko
Katayama Makoto
Nishimura Masayuki
Okuno Toshiaki
Glick Edward J.
Suchecki Krystyna
Sumitomo Electric Industries Ltd.
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