Dispersion-compensating module
AssigneeSumitomo Electric Industries, Ltd.
InventorsToshiaki Okuno, Shinji Ishikawa
Life of this patent
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Abstract
The present invention relates to a dispersion-compensating module functioning to compensate for the chromatic deviation occurring in an optical transmission line and comprising a structure adapted to be easily inserted in an optical transmission system. The dispersion-compensating module according to the present invention comprises an input end and an output end for signal light, and also comprises dispersion-compensating means such as a dispersion-compensating optical fiber or the like, and loss-equalizing means for compensating for at least the wavelength-dependent loss deviation in the dispersion-compensating means.
Claims36
A dispersion-compensating module having an input end into which light of one or more light signals whose respective center wavelengths are included in a predetermined wavelength band are inputted, and an output end from which said light signals exit, thereby constituting a part of an optical transmission line through which said light signals propagate, said dispersion-compensating module comprising:
- dispersion-compensating means which is disposed in an optical path between said input end and said output end and which has a positive dispersion slope;
- and
- loss-equalizing means which is disposed in the optical path between said input end and said dispersion-compensating means and which can compensate for at least wavelength-dependent loss deviations of said dispersion-compensating means.
A dispersion-compensating module comprising an input end into which light of one or more light signals whose respective center wavelengths are included in a predetermined wavelength band are inputted, and an output end from which said light signals are outputted, thereby constituting a part of an optical transmission line through which said light signals propagate, said dispersion-compensating module comprising:
- dispersion-compensating means which is disposed in an optical path between said input end and said output end and which has a negative dispersion slope;
- and
- loss-equalizing means which is disposed in the optical path between said input end and said dispersion-compensating means and which can compensate for at least wavelength-dependent loss deviations of said dispersion-compensating means.
Dependencies are inferred from the claim text.