Frequency stabilization of rare-earth-doped fiber lasers by use of 3 × 3 nonplanar fused-fiber couplers

摘要

We present a numerical analysis that indicates that a 3× 3 nonplanar fused-fiber coupler can be used to inhibit longitudinal mode hops ir. a narrow linewidth unidirectional ring fiber laser. We also give preliminary experimental data that support our numerical analysis. # 1997 Optical Society of America