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《半导体光子学与技术(英文版)》 2008-02
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Optical Pulse Compression Based on High-doped Erbium Fiber Amplifier and Standard Single-mode Fiber

REN Jing, JIA Dong-fang, LIU Yang, LI Ya-bin(Optoelectronic Information Science and Technology Lab, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, CHN)  
Proposed is a novel optical pulse compression technique based on high-doped erbium fiber amplifier and standard single-mode fiber(SMF). We used the amplifier with the erbium ion concentration of 6.3×10-3 to amplify a hyperbolic secant pulse from a regeneratively mode-locked fiber laser. The central wavelength, pulsewidth and peak power of the pulse are 1 550 nm, 12.5 ps and 3 mW, respectively. Then the amplified pulse with peak power level corresponding to a higher-order soliton is compressed when it propagates through a 3-km-long single-mode fiber. Studied are the compressed pulses under different pump powers and fiber lengths. The results show that it can get a narrower pulse, and solve the difficulty that pulses at low power can not be compressed directly in the fiber. And the construct is compact.
【Fund】: National Natural Science Foundation of China(60507001 ;60477022 ;06YFGPGX08500)
【CateGory Index】: TN722
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