Erbium and ytterbium fiber lasers were firmly synchronized by nonlinear interaction in active media placed in the same cavity. A two-color femtosecond–picosecond pulse train at largely separate wavelengths of 1.55 and 1.04μm was generated. Optimizing the laser cavity to enhance the cross-phase modulation in the gain materials has yielded a large mismatch of 20μm between the two laser cavities.
© 2004 Optical Society of America
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4050) Lasers and laser optics : Mode-locked lasers
(320.7090) Ultrafast optics : Ultrafast lasers
Matei Rusu, Robert Herda, and Oleg G. Okhotnikov, "Passively synchronized erbium (1550-nm) and ytterbium (1040-nm) mode-locked fiber lasers sharing a cavity," Opt. Lett. 29, 2246-2248 (2004)