已知双曲线\(C\)：\( \dfrac {x^{2}}{a^{2}}- \dfrac {y^{2}}{b^{2}}=1 (a > 0 , b > 0)\)的一条渐近线方程是\(y= \sqrt {2}x\)，过其左焦点\(F( - \sqrt {3},0 )\)作斜率为\(2\)的直线\(l\)交双曲线\(C\)于\(A\)，\(B\)两点，则截得的弦长\(|AB|= (\:\:\:\:)\)
A. \(2 \sqrt {5}\)
B. \(4 \sqrt {5}\) C. \(10\) D. \(10 \sqrt {2}\)
