Response to 'Comment on 'Confined propagation and near single-mode laser oscillation in a gain-guided, index antiguided optical fiber''[Appl. Phys. Lett. 102, 026101 (2013)]

摘要

In the comment by Cao et al., they raise an important point concerning Siegman's original work on index antiguided fibers. In that work, Siegman treated the cladding as if it were infinitely thick so that an interface between the cladding and another medium, e.g., air, was not considered. Cao et al. point out that if the cladding is not infinitely thick, the cladding-air interface may have to be taken into account when interpreting experimental results such as those we presented in Ref. 3. Though they are correct in suggesting that index guided modes involving the cladding-air interface can potentially oscillate, we insist the evidence for gain guided index anti-guided (GG IAG) lasing conducted by ourselves and published in collaboration with Professor Siegman is indisputable.