Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany.
Opt Lett. 2010 Sep 15;35(18):3081-3. doi: 10.1364/OL.35.003081.
We present a mode-locked, all-normal-dispersion erbium-doped fiber oscillator generating output pulses with broadband spectra covering the range from 1475 to 1620 nm. The oscillator operates at a repetition rate of 109 MHz with output pulse energies of 1.6 nJ. Mode-locked operation is achieved by use of nonlinear polarization evolution in combination with a birefringent filter. The output pulses are dechirped with an external prism compressor to a duration of 50 fs.
我们提出了一种锁模、全正色散掺铒光纤振荡器，可产生从 1475nm 到 1620nm 的宽带光谱的输出脉冲。该振荡器以 109MHz 的重复率工作，输出脉冲能量为 1.6nJ。通过在双折射滤波器中采用非线性偏振演化实现了锁模操作。输出脉冲通过外部棱镜压缩器展宽到 50fs 的脉宽。
