Photonics Research, 2020, 8 (1): 01000065, Published Online: Dec. 19, 2019
Ultrabroadband, few-cycle pulses directly from a Mamyshev fiber oscillator Download: 936次
Abstract
While the performance of mode-locked fiber lasers has been improved significantly, the limited gain bandwidth restricts them from generating ultrashort pulses approaching a few cycles or even shorter. Here we present a novel method to achieve few-cycle pulses ( ) with an ultrabroad spectrum ( at ) from a Mamyshev oscillator configuration by inserting a highly nonlinear photonic crystal fiber and a dispersion delay line into the cavity. A dramatic intracavity spectral broadening can be stabilized by the unique nonlinear processes of a self-similar evolution as a nonlinear attractor in the gain fiber and a “perfect” saturable absorber action of the Mamyshev oscillator. To the best of our knowledge, this is the shortest pulse width and broadest spectrum directly generated from a fiber laser.
Chunyang Ma, Ankita Khanolkar, Yimin Zang, Andy Chong. Ultrabroadband, few-cycle pulses directly from a Mamyshev fiber oscillator[J]. Photonics Research, 2020, 8(1): 01000065.