Line narrowing in the output spectrum of a Nd-doped silica-fiber laser with spectrally flat reflectors is interpreted to indicate a substantial homogeneous contribution to the 1.09-μm fluorescent linewidth. By using a fiber Bragg reflector, frequency-stable operation with 100-GHz bandwidth is obtained, dominated by power broadening and spectral hole burning.
© 1987 Optical Society of America
Original Manuscript: November 25, 1986
Manuscript Accepted: January 26, 1987
Published: May 1, 1987
M. Zürn, S. B. Poole, J. Voigt, E. Brinkmeyer, and R. Ulrich, "Line narrowing and spectral hole burning in single-mode Nd3+-fiber lasers," Opt. Lett. 12, 316-318 (1987)