中国物理B ›› 2007, Vol. 16 ›› Issue (7): 1986-1990.doi: 10.1088/1009-1963/16/7/030
张书敏1, 吕福云2, 龚岩洞3, 杨秀峰3
Zhang Shu-Min(张书敏)a) c) , Lü Fu-Yun(吕福云)b), Gong Yan-Dong(龚岩洞)c), and Yang Xiu-Feng(杨秀峰)c )
摘要: We report on the experimental observation of soliton pulses in an erbium doped fibre ring laser. The passive mode-locking is achieved using the nonlinear polarization rotation technique. By adjusting the pump power and the intracavity polarization controllers, a normal soliton, a stable 8th harmonic mode-locked pulse and a noise-like pulse have been observed in our laser. The experimental results revealed that the noise-like pulse is not suitable for the optical telecommunication, and in order to obtain the stable harmonic mode-locked soliton, a strong unstable CW laser field is necessary to mediate global soliton interaction. The formation mechanism of the harmonic mode-locked pulse has also been analysed.
中图分类号: (Optical solitons; nonlinear guided waves)