Erkintalo Miro, Aguergaray Claude, Runge Antoine, Broderick Neil G R
Physics Department, University of Auckland, Private Bag 92019, Auckland, New Zealand.
Opt Express. 2012 Sep 24;20(20):22669-74. doi: 10.1364/OE.20.022669.
We report on an environmentally stable giant chirp oscillator operating at 1030 nm. Thanks to the use of a nonlinear amplifying loop mirror as the mode-locker, we are able to extract pulse energies in excess of 10 nJ from a robust all-PM cavity with no free-space elements. Extensive numerical simulations reveal that the output oscillator energy and duration can simply be up-scaled through the lengthening of the cavity with suitably positioned single-mode fiber. Experimentally, using different cavity lengths we have achieved environmentally stable mode-locking at 10, 3.7 and 1.7 MHz with corresponding pulse energies of 2.3, 10 and 16 nJ. In all cases external grating-pair compression below 400 fs has been demonstrated.
我们报道了一种工作在1030nm的环境稳定型巨啁啾振荡器。由于使用了非线性放大环镜作为锁模器，我们能够从一个没有自由空间元件的坚固全保偏腔中提取超过10nJ的脉冲能量。大量数值模拟表明，通过用适当放置的单模光纤延长腔长，输出振荡器的能量和持续时间可以简单地按比例放大。实验上，使用不同的腔长，我们分别在10MHz、3.7MHz和1.7MHz实现了环境稳定的锁模，相应的脉冲能量分别为2.3nJ、10nJ和16nJ。在所有情况下，都证明了外部光栅对压缩可低于400fs。
