Guided mode resonance filters produced a stable spectrally narrow Thulium fiber laser, at ~1985nm. Laser spectral linewidths of 10-30pm with a slope efficiency of ~35% were demonstrated. Spectral reflectivity was explored and showed 0.4-1.0nm FWHM.
© 2009 The Optical Society
R. A. Sims, Z. Roth, T. McComb, L. Shah, V. Sudesh, P. Menelaos, E. Johnson, and M. C. Richardson, "Guided Mode Resonance Filters as Stable Line-Narrowing Feedback Elements for Tm Fiber Lasers," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper CThN2.
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