Optical-transmission system

Details Optical-transmission system Optical-transmission system

H - Electricity

04

B

H04B 10/18 (2006.01)

Patent

CA 2413458

An optical-transmission system comprises a dispersion- shifted fiber having a zero dispersion wavelength between the wavelengths from 1450 µm to 1650 µm, and a dispersion- compensating fiber optically coupled to that dispersion- shifted fiber. The optical-transmission system has a total dispersion slope of not less than -0.02 ps/km/nm2 and not more than 0.05 ps/km/nm2 for light in the 1.55 µm wavelength band. Such an optical-transmission system can further comprise a light source coupled with the dispersion-compensating fiber for generating an excitation light into it to amplify a signal light therein by utilizing a Raman amplification, thereby to compensate for loss in signal light transmitted in the dispersion-compensating fiber which is caused in the dispersion-compensating fiber.

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