论文标题
双波长泵送高度双重的微结构二氧化硅纤维，可广泛可调的孤子自频移动
Dual-wavelength pumped highly birefringent microstructured silica fiber for widely tunable soliton self-frequency shift
论文作者
论文摘要
我们报告了基于微型二氧化硅的纤维的设计，可用于广泛可调的孤子自频移位，适用于用两个最常见的纤维激光波长泵送：1.04μm和1.55μm。根据泵源，可以在相同1.5 m长的纤维样品中连续调节输出光谱，最多可连续调整高达1.67μm（泵为1.04μm）或1.95μm（泵为1.55μm），泵到耐糖的转换效率高于20％。纤维是高度双向的，导致孤子的极好灭绝比达到26 dB。移动的孤子具有高度的连贯性，该连贯性通过脉冲对脉冲干扰测量确认。可用的孤子调谐范围涵盖了纤维激光器无法访问的波长，例如1.3μm和1.7μm，对于多光子显微镜显微镜和成像非常重要。我们的工作表明，当在两个不同的波长散发出500 nm以上的波长时，可以设计和制造一种支持孤子偏移的通用光纤。
We report the design of a microstructured silica-based fiber for widely tunable soliton self-frequency shift, suitable for pumping with two most common fiber laser wavelengths: 1.04 μm and 1.55 μm. Depending on the pump source, the output spectrum can be continuously tuned up to 1.67 μm (pump at 1.04 μm) or 1.95 μm (pump at 1.55 μm) in the same 1.5 m-long fiber sample, with pump-to-soliton conversion efficiency higher than 20%. The fiber is highly birefringent, which results in an excellent polarization extinction ratio of the soliton, reaching 26 dB. The shifted solitons have a high degree of coherence confirmed by pulse-to-pulse interference measurement. The available soliton tuning range covers the wavelengths inaccessible for fiber lasers, e.g., 1.3 μm and 1.7 μm, highly important for multi-photon microscopy and imaging. Our work shows that it is possible to design and fabricate one universal optical fiber that supports soliton shift when pumped at two different wavelengths separated by over 500 nm.
