THEORETICAL STUDY OF SELF-STARTING MODE-LOCKED ALL-FIBER LASERS
SUN JUN-QIANG (孙军强)a, HUANG DE-XIU (黄德修)a, LI ZAI-GUANG (李再光)b
a Department of Optoelectronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; b State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China
Abstract In this paper, the self-startlng mode-locking characteristics of all-fiber lasers are in-vestigated theoretically. The mechanism of self-starting mode-locking is analyzed and the experimental phenomena are explained successfully by introducing effective energy gain. The modulation characteristics of all-fiber lasers and the effect of gain saturation on modulation characteristics are discussed by analyzing the transmissivity of Er-doped fiber loop. Finally, the dynamic processes of all-fiber self-starting mode-locked lasers are simulated numerically.
Received: 14 December 1993
Accepted manuscript online:
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