| Tunable fiber lasers are among the most promising laser sources for wavelength-division multiplexing (WDM) network due to their high energy conversion efficiency (> 20%), large gain bandwidth across C and L bands, and inherent compatibility with optical fibers, which leads to extremely low insertion loss and reduced packaging costs.; This thesis presents the design and fabrication process of a thermo-optically tunable fiber ring laser that operates without using any moving mechanical parts. The laser is based on a polymer-spaced Fabry-Perot (F-P) thermo-optically tunable filter. A wavelength tuning range of 1.4 nm and a high wavelength stability of 0.02 nm have been demonstrated. Such a non-mechanical tunable fiber laser structure leads to a reduced device size and allows easy packaging. |
