Kringlebotn, J.T., Archambault, J.L., Reekie, L. and Payne, D.N.
Er3+:Yb3+ co-coped fiber DFB laser
Optics Letters, 19, (24), . (doi:10.1364/OL.19.002101).
We report what is to our knowledge the first fiber distributed-feedback laser using a single Bragg grating at 1.5µm written directly into a 2-cm-long Er3+-doped fiber codoped with Yb3+. We obtained robust single-frequency operation by either using one end reflector or locally heating the center of the grating to create the necessary phase shift.
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