| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High Power Er/Yb Codoped Double Clad Fiber Pulsed Amplifier Based on an All-Fiber Configuration |
| ZHOU Lei, NING Ji-Ping, CHEN Cheng, HAN Qun, ZHANG Wei-Yi, WANG Jun-Tao |
| College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072Optoelectronic Information Science and Technology Lab, Tianjin University, Tianjin 300072 |
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| Cite this article: |
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ZHOU Lei, NING Ji-Ping, CHEN Cheng et al 2009 Chin. Phys. Lett. 26 064215 |
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Abstract We report an all-fiber two-stage high power pulsed amplifier, seeded with a 1550nm, 1kHz repetition rate rectangular pulse, and based on Er/Yb co-doped double clad fiber. All the characteristics are measured in the experiment. The maximal slope efficiency is 22.56%, which is the highest we know of at such a low repetition rate, and the maximal output signal power is 1W. The various factors that affect the pulsed amplifier performance are analyzed. A high output power while keeping high power conversion efficiency can be obtained with careful selection of the input power, pump power and repetition rate. The experimental results show that the crucial parameters should be optimized when designing all-fiber pulsed amplifiers.
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| Keywords:
42.81.Qb
42.60.Da
07.60.Vg
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Received: 23 January 2009
Published: 01 June 2009
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| PACS: |
42.81.Qb
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(Fiber waveguides, couplers, and arrays)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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07.60.Vg
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(Fiber-optic instruments)
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