We have exploited spatial hole burning to achieve remarkably stable single-frequency operation and mode-hop-free tuning over 300 free spectral ranges in an ytterbium-doped fiber laser with a sample standing-wave geometry. This approach makes possible stable and narrow-linewidth single-frequency fiber lasers that do not require components such as Faraday isolators, fiber couplers, and Fabry–Perot filters.
© 1997 Optical Society of America
R. Paschotta, J. Nilsson, L. Reekie, A. C. Trooper, and D. C. Hanna, "Single-frequency ytterbium-doped fiber laser stabilized by spatial hole burning," Opt. Lett. 22, 40-42 (1997)