Optical receiving apparatus
AssigneeFujitsu Limited
InventorToshiki Honda
Life of this patent
Estimating the term…
Abstract
An optical receiving apparatus is provided with a receiver, a setting unit, and a storage unit. The receiver receives an optical signal modulated in a DPSK format and performs variable dispersion compensation and delay interference processing on the optical signal to demodulate the optical signal. The setting unit sets suitable setting values of the variable dispersion compensation and the delay interference processing for the receiver based on an error condition of the demodulated signal. The storage unit stores the setting values set by the setting unit.
Claims9
An optical receiving apparatus comprising:
- a receiver that receives an optical signal modulated by a differential phase shift keying and that performs variable dispersion compensation and delay interference processing on the optical signal to demodulate the optical signal;
- a setting unit that sets setting values at appropriate values for the variable dispersion compensation and the delay interference processing based on an error condition of the demodulated optical signal;
- and
- a storage unit that stores the setting values set by the setting unit, wherein
- the receiver is provided in plurality, and
- when a new receiver is additionally provided, the setting unit sets the setting values for the new receiver based on the setting values stored in the storage unit.
An optical receiving method for an apparatus that includes a plurality of receivers each of which performs variable dispersion compensation and delay interference processing on an optical signal modulated by a differential phase shift keying to demodulate the optical signal, the optical receiving method comprising:
- setting values at appropriate values for the variable dispersion compensation and the delay interference processing based on an error condition of the demodulated optical signal;
- and
- storing the values set at the setting;
- and
- setting, when a new receiver is additionally provided, the values for the new receiver based on the values stored at the storing.
Dependencies are inferred from the claim text.