【摘 要】
：
A low-repetition-rate,all-polarization-maintaining (PM)-fiber sub-nanosecond oscillator is presented,which is simple and low-cost,composed of standard component
【机 构】
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State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision In
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A low-repetition-rate,all-polarization-maintaining (PM)-fiber sub-nanosecond oscillator is presented,which is simple and low-cost,composed of standard components.The ring cavity is elongated by 114-m-long standard PM fiber,and passively mode-locked by a fiber pigtailed semiconductor saturable absorber.Linearly polarized pulses with 1.66 MHz repetition rate and 22 dB polarization extinction ratio are generated at a wavelength of 1030 nm,which is determined by an intracavity filter.In addition,to demonstrate that the oscillator is a good seed for high energy pulse generation,an all-fiber master oscillator power amplifier is built and amplified pulses with energy about 2 μJ are obtained.
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