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Author:

Li Ping-xue (Li Ping-xue.) (Scholars:李平雪) | Liu Zhi (Liu Zhi.) | Zhang Xue-xia (Zhang Xue-xia.) | Chi Jun-jie (Chi Jun-jie.)

Indexed by:

CPCI-S EI Scopus

Abstract:

We report on the amplification of 21ps pulses up to 10W average output power in both a conventional ytterbium-doped large-core double-clad fiber and photonic crystal fiber (PCF). The picosecond fiber amplifier system consists of a mode-locked Nd:YVO4 oscillator and a diode-pumped double-clad large-core ytterbium-doped fiber. a passively mode-locked (SESAM) Nd:YVO4 oscillator is used as the picosecond seed source, which has repetition rate of 93 MHz, pulse duration as short as 19.2 ps at 1064 nm and an average power of 380 mW. At first, conventional double clad fiber is used as the amplifier medium, which has an inner cladding diameter of 250 mu m and the active core diameter of 30 mu m. The absorption coefficient of this fiber is as high as 9 dB/m at 976 nm. Secondly, PCF with an inner cladding diameter of 200 mu m, the active core diameter of 40 mu m is chosen for the amplifier with the same absorption coefficient as the conventional double clad fiber. For these two kinds of fiber amplifiers, both more than 10 W amplified output power have been achieved. Since lager mode area double clad ytterbium-doped fiber and photonic crystal fiber have been chosen in the amplifier, which would lead to a reduced nonlinearity, spectral broadening due to SPM is extensively suppressed.

Keyword:

Ultra fast lasers Fiber optics amplifiers and laser Double-clad fiber

Author Community:

  • [ 1 ] [Li Ping-xue]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Liu Zhi]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang Xue-xia]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Chi Jun-jie]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 李平雪

    [Li Ping-xue]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China

Email:

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Source :

INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: LASER SENSING AND IMAGING AND BIOLOGICAL AND MEDICAL APPLICATIONS OF PHOTONICS SENSING AND IMAGING

ISSN: 0277-786X

Year: 2011

Volume: 8192

Language: English

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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