A fiber ring laser that can produce nearly transform-limited soliton pulses is simulated. This laser has an erbium-doped optical-fiber amplifier and allows wavelength tuning through the interplay of fiber chromatic dispersion and the round-trip delay time of the laser. We show that a saturable absorber and a frequency limiter are required for the ring laser to self-start, i.e., to mode lock from initial noise and to operate stably. We also show that nonlinear polarization rotation with polarization selectivity inside the ring can act as a saturable absorber.
© 1992 Optical Society of America
Original Manuscript: October 24, 1991
Published: March 15, 1992
C.-J. Chen, P. K. A. Wai, and C. R. Menyuk, "Soliton fiber ring laser," Opt. Lett. 17, 417-419 (1992)