Optical transmission line and optical communication system

Details Optical transmission line and optical communication system Optical transmission line and optical communication system

H - Electricity

04

B

H04B 10/18 (2006.01) G02B 6/34 (2006.01) H04B 10/17 (2006.01)

Patent

CA 2399836

An optical communication system has a configuration in which an optical transmission line is laid between a repeater (transmitter) and another repeater (receiver). The optical transmission line is formed by fusion- splicing a first optical fiber on the upstream side and a second optical fiber on the downstream side. The first optical fiber has a transmission loss of 0.25 dB or less, and an effective area of 80 µm2 or above (preferably 100µm2 or above), at a wavelength of 1550 nm, which is the wavelength of signal light. The second optical fiber is connected to the downstream end of the first optical fiber and has positive dispersion regions and negative dispersion regions which are alternately arranged along the longitudinal direction and whose chromatic dispersions at a wavelength of 1550 nm are positive and negative, respectively.

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