Carbon nanotube mode lockers with enhanced nonlinearity via evanescent field interaction in D-shaped fibers
Carbon nanotube mode lockers with enhanced nonlinearity via evanescent field interaction in D-shaped fibers
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DOI：
10.1364/ol.32.000148
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发表时间：
2007-01-15
期刊：
影响因子：
3.6
通讯作者：
Set, Sze Y.
中科院分区：
文献类型：
--
作者：
Song, Yong-Won;Yamashita, Shinji;Set, Sze Y.
我们提出了一种新的被动锁模方案的脉冲激光增强的相互作用的碳纳米管（CNTs）与传播光的倏逝场在D形光纤。该方案具有全光纤操作以及长的横向相互作用长度，这保证了纳米管的强非线性效应。与用于常规方案的纳米管的量相比，用不到30%的CNT实现锁模。我们的方法还确保了单个CNT的原始形态的保留。所展示的脉冲激光器与我们的CNT锁模器具有5.88 MHz的重复频率和470 fs的时间脉冲宽度。(c)2006年美国光学学会。
We demonstrate a novel passive mode-locking scheme for pulsed lasers enhanced by the interaction of carbon nanotubes (CNTs) with the evanescent field of propagating light in a D-shaped optical fiber. The scheme features all-fiber operation as well as a long lateral interaction length, which guarantees a strong nonlinear effect from the nanotubes. Mode locking is achieved with less than 30% of the CNTs compared with the amount of nanotubes used for conventional schemes. Our method also ensures the preservation of the original morphology of the individual CNTs. The demonstrated pulsed laser with our CNT mode locker has a repetition rate of 5.88 MHz and a temporal pulse width of 470 fs. (c) 2006 Optical Society of America.