Research of programmable 1064nm semiconductor pulse seed laser
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1.
School of Opto-electric Information, University of Electronic Science and Technology of China, Chengdu 610054, China
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Received Date:
2008-11-08
Accepted Date:
2009-02-18
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Abstract
In order to obtain nanosecond high peak power optical pulses from a master oscillator power amplifier(MOPA),a semiconductor seed laser was designed in the MOPA system.It can be programmed and output various optical pulses and its output quality was improved with adaptive pulse shape control technology.In the experiment,a high-speed and high-current drive module and a programmable arbitrary modulating waveform generator and a 1064nm QW-DFB(quantum well distributed feedback)high-power diode laser were adopted.The experimental results show that this programmable semiconductor pulse seed laser which can output many shapes,while the peak power is more than 200mW,the dynamic range is better than 20dB,the pulse width is adjustable from 40ns to 1μs,and a pulse frequency is adjustable from 0MHz to 5MHz.
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