On the other hand, using the equation of scaling of the Raman gain efficiency [16] for the SMF-28
fiber, we obtain gRð1455 nmÞ ¼ 0:37 W1
km1 and gRð1480 nmÞ ¼ 0:34 W1
km1
. Which are very
close to gRð1455 nmÞ ¼ 0:42 W1km1 and gRð1480 nmÞ ¼ 0:39 W1
km1 reported by [17].
5. Con
km1
. Which is approximate to the recently reported value
gRð1116 nmÞ ¼ 1:86 W1
km1 [15], i.e., there is a difference 4% between the two results. On the
other hand, with the traditional relationship of Smith [9] the Raman gain efficiency is 3.36 W1
km1
at 1064 nm pump power, 25% larger than our result.
TABLE 1
R