单选题If the dispersion of a given fiber is 17ps/nm*km at 1550 nm and zero at 1310 nm, then what is the accumulated dispersion of an ITU wavelength after it travels 200 km?（）A0 ps/nmB340 ps/nmC200 ps/nmD3400 ps/nmEMore information is needed.
单选题
If the dispersion of a given fiber is 17ps/nm*km at 1550 nm and zero at 1310 nm, then what is the accumulated dispersion of an ITU wavelength after it travels 200 km?（）
A
0 ps/nm
B
340 ps/nm
C
200 ps/nm
D
3400 ps/nm
E
More information is needed.
参考解析
解析：
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