Fiber-delivered picosecond source for coherent Raman scattering imaging.
Fiber-delivered picosecond source for coherent Raman scattering imaging.
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DOI：
10.1364/ol.36.004233
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发表时间：
2011-11-01
期刊：
影响因子：
3.6
通讯作者：
Xu C
中科院分区：
文献类型：
--
作者：
Wang K;Xu C
我们展示了一个双色，光纤传输皮秒相干拉曼散射（CRS）成像源。利用锁模钛宝石（Ti：S）激光器输出的预啁啾飞秒激光脉冲经非线性光谱压缩后产生波长可调谐的皮秒泵浦。1064 nm皮秒斯托克斯脉冲由与Ti：S激光同步的全光纤时间透镜源产生。泵浦光和斯托克斯光在光纤耦合器中合成，光纤耦合器不仅作为传输光纤，而且作为非线性介质用于飞秒脉冲的光谱压缩。对小鼠皮肤进行CRS成像，以证明该源的实用性。
We demonstrate a two-color, fiber-delivered picosecond source for coherent Raman scattering (CRS) imaging. The wavelength-tunable picosecond pump is generated by nonlinear spectral compression of a prechirped femtosecond pulse from a mode-locked titanium:sapphire (Ti:S) laser. The 1064 nm picosecond Stokes pulse is generated by an all-fiber time-lens source that is synchronized to the Ti:S laser. The pump and Stokes beams are combined in an optical fiber coupler, which serves not only as the delivery fiber but also as the nonlinear medium for spectral compression of the femtosecond pulse. CRS imaging of mouse skin is performed to demonstrate the practicality of this source.