摘要 |
<p>Embodiments of the present invention generally relate to high energy, ultrashort pulses from a net normal dispersion ytterbium fiber laser with an anomalous dispersion higher-order mode fiber. More specifically, embodiments of the present invention relate to a fiber oscillator with all-fiber dispersion compensation delivering pulse parameters comparable to solid-state oscillators having good compensation of higher order dispersion and intracavity nonlinearities. In one embodiment of the present invention, an oscillator comprises a length of single mode fiber and a length of higher- order mode fiber, where the group delay dispersion (GDD) of the higher-order mode fiber is chosen to match 50% or more of the GDD of the single mode fiber; wherein a third-order dispersion of the oscillator matches a nonlinear phase buildup in a cavity of the oscillator, and the nonlinear phase buildup is dependent upon the pulse energy of the oscillator.</p> |
申请人 |
OFS FITEL, LLC;TECHNISCHE UNIVERSITAET WIEN;JESPERSON, KIM;GONZALES, ALMA, DEL CARMEN FERNANDEZ;ZHU, LINGXIAO;VERHOEF, AART, JOHANNES |
发明人 |
JESPERSON, KIM;GONZALES, ALMA, DEL CARMEN FERNANDEZ;ZHU, LINGXIAO;VERHOEF, AART, JOHANNES |