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This article is cited in 4 scientific papers (total in 4 papers)
Lasers
Microsecond gain-switched master oscillator power amplifier (1958 nm) with high pulse energy
Ke Yin, Weiqiang Yang, Bin Zhang, Ying Li, Jing Hou College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, Hunan
Abstract:
An all-fibre master oscillator power amplifier (MOPA) emitting high-energy pulses at 1958 nm is presented. The seed laser is a microsecond gain-switched thulium-doped fibre laser (TDFL) pumped with a commercial 1550-nm pulsed fibre laser. The TDFL operates at a repetition rate f in the range of 10 to 100 kHz. The two-stage thulium-doped fibre amplifier is built to scale the energy of the pulses generated by the seed laser. The maximum output pulse energy higher than 0.5 mJ at 10 kHz is achieved which is comparable with the theoretical maximum extractable pulse energy. The slope efficiency of the second stage amplifier with respect to the pump power is 30.4% at f = 10 kHz. The wavelength of the output pulse laser is centred near 1958 nm at a spectral width of 0.25 nm after amplification. Neither nonlinear effects nor significant amplified spontaneous emission (ASE) is observed in the amplification experiments.
Keywords:
all-fibre master oscillator power amplifier, thuliumdoped fibre laser, high pulse energy, gain-switching.
Received: 03.09.2013 Revised: 08.10.2013
Citation:
Ke Yin, Weiqiang Yang, Bin Zhang, Ying Li, Jing Hou, “Microsecond gain-switched master oscillator power amplifier (1958 nm) with high pulse energy”, Kvantovaya Elektronika, 44:2 (2014), 163–166 [Quantum Electron., 44:2 (2014), 163–166]
Linking options:
https://www.mathnet.ru/eng/qe15302 https://www.mathnet.ru/eng/qe/v44/i2/p163
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