Aim at the bottom: directly exciting the lower level of a laser transition for additional functionality

Nikolas Iwanus; Darren D. Hudson; Tomonori Hu; Stuart D. Jackson

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Aim at the bottom: directly exciting the lower level of a laser transition for additional functionality

机译：瞄准底部：直接激发较低水平的激光过渡以获得附加功能

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We introduce the concept of directly exciting the lower level of a laser transition in addition to the upper laser level for the provision of new possibilities for light emission from a fiber. In a first demonstration, using diode laser light at 1150 and 1950 nm, we respectively excite the upper and lower laser level of the ~5I_6 → ~5I_7 transition (2.9 μm) of Ho~(3+)-doped ZBLAN, demonstrating a power-scalable arrangement that can switch between free-running and superluminescent spectral output. The spectral composition of the gain-switched pulse derived from modulating the upper laser level pump light depends entirely on the degree of lower laser level excitation at 1950 nm.

机译：我们引入了直接激发激光跃迁的较低水平以及较高的激光水平的概念，从而为从光纤发射光提供了新的可能性。在第一个演示中，我们使用1150和1950 nm的二极管激光，分别激发了Ho〜（3+）掺杂ZBLAN的〜5I_6→〜5I_7跃迁（2.9μm）的上下激光能级，展示了一种功率可扩展的设置，可以在自由运行和超发光光谱输出之间切换。从调制较高的激光水平泵浦光得到的增益切换脉冲的光谱成分完全取决于在1950 nm下较低的激光水平激发的程度。

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《Optics Letters》 |2014年第5期|共4页
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Nikolas Iwanus; Darren D. Hudson; Tomonori Hu; Stuart D. Jackson;
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1. Aim at the bottom: directly exciting the lower level of a laser transition for additional functionality [J] . Nikolas Iwanus, Darren D. Hudson, Tomonori Hu, Optics Letters . 2014,第5期

机译：瞄准底部：直接激发较低水平的激光过渡以获得附加功能
2. Non-radiative transitions between the sublevels of the working lower multiplet of the YAG:Nd laser: Effects on the generation spectrum [J] . Oleg L. Golovkov, Galina A. Kuptsova, Vladimir A. Stepanov St. Petersburg Polytechnic University Journal: Physics and Mathematics . 2015,第2期

机译：YAG：Nd激光器工作下多重峰的子级之间的非辐射跃迁：对生成光谱的影响
3. Nonradiative transitions between the sublevels of the working lower multiplet of the YAG:Nd laser: effects on the generation spectrum [J] . Golovkov Oleg L., Kuptsova Galina A., Stepanov Vladimir A. St. Petersburg Polytechnic University Journal: Physics and Mathematics . 2015,第2期

机译：YAG工作下较倍数的余量之间的非接触性：ND激光器：对生成谱的影响
4. Efficient Laser Emission of Nd-vanadates on the 1.34-μm ~4F_(3/2)→~4I_(13/2) Transition under Pumping with Diode Lasers Directly into the Emitting Level [C] . N. Pavel, T. Dascalu, N. Vasile, Conference on Lasers and Electro-Optics Quantum Electronics and Laser Science Conference . 2009

机译：高效激光发射ND-钒酸盐的1.34μm〜4f_（3/2）→〜4i_（13/2）过渡，在泵送到二极管激光器直接进入发光水平
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Aim at the bottom: directly exciting the lower level of a laser transition for additional functionality

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