Wideband frequency modulation of a mode-locked fiber laser.
Wideband frequency modulation of a mode-locked fiber laser.
复制标题
锁模光纤激光器的宽带频率调制。
DOI：
10.1364/ol.29.002351
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发表时间：
2004
期刊：
影响因子：
3.6
通讯作者：
J. W. Lou
中科院分区：
文献类型：
--
作者：
F. Fatemi;J. W. Lou
我们已经演示了高重复频率光纤激光器频率梳状线的宽带频率调制。在调制频率只有大约10 kHz的情况下，我们产生了超过250的调制指数。虽然是内部调制的，但激光在2 khz的线宽下仍保持稳定，因此，即使在传输数百公里后，10 khz的调制边带仍然清晰可分辨。这一独特的特性用于在大于50公里的距离上同时测量分辨率为1米的传播距离和小于3毫米/S的速度。
We have demonstrated wideband frequency modulation of the frequency comb lines of a high-repetition-rate fiber laser. With a modulation frequency of only approximately 10 kHz, we have generated modulation indices in excess of 250. Although internally modulated, the laser remains stable with 2-kHz linewidths, and thus the 10-kHz modulation sidebands are still clearly resolved even after propagation over several hundred kilometers. This unique characteristic is used for simultaneous measurement of propagation distances to 1-m resolution and velocities of less than 3 mm/s over a distance of greater than 50 km.