Abstract
Multiple Raman peak properties in a 130 m tellurite fiber are demonstrated in this paper. When the tellurite fiber is pumped by a nanosecond laser at ∼1545 nm, a second-order Raman shift with multiple Raman peaks is observed. Especially for the first-order Raman shift, six obvious Raman peaks are observed. When the tellurite fiber is pumped by a picosecond laser at ∼1064 nm, a second-order Raman shift with only dual Raman peaks is obtained. Furthermore, the evolution of Raman shift with the variation of fiber length is investigated.
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