12 February 2018 Real-time observation of hidden multi-soliton dynamics in a few-cycle Ti:Sapph oscillator (Conference Presentation) (Withdrawal Notice)
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Mode-locked lasers are a prominent example of dissipative nonlinear systems which support soliton bound-states. However, rapid dynamic interactions between such soliton complexes with pico- to femtosecond separation are mostly invisible to standard laser characterization techniques, including scanning interferometric autocorrelation, temporally-averaged spectroscopy, and single-shot measurements at low repetition rates. Here, we apply the time-stretch dispersive Fourier transform (TS-DFT) and high-speed real-time sampling to resolve fast intracavity soliton dynamics.

The multi-soliton complexes are induced in a common broadband commercial laser oscillator (~10 fs pulse width) by applying external perturbations. The optical spectrum of a multi-pulse complex corresponds to a spectral interferogram, encoding both the distances and the relative phase of its constituents. In order to access this information for fast bound-state dynamics, rapid spectral detection is essential. The presented single-shot spectroscopy is enabled via the transformation of spectral information to the time-domain via group-velocity-dispersion in a long optical fiber, and subsequent high-bandwidth real-time acquisition [1]. By recording such single-shot spectral interferograms, we can resolve a diverse set of dynamic bound-states, and identify unprecedented rapid dynamics of bound-states with regular, periodic and aperiodic behavior in a state-of-the-art broadband Kerr-lens oscillator.

[1] G. Herink, B. Jalali, C. Ropers, D.R. Solli, "Resolving the buildup of femtosecond mode-locking with single-shot spectroscopy at 90 MHz frame-rate" Nat. Photon. 10, 321–326 (2016).
Conference Presentation

Publisher’s Note: This conference presentation, originally published on 21 April 2017, was withdrawn per author request.

© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Georg Herink, Georg Herink, Felix Kurtz, Felix Kurtz, Daniel R. Solli, Daniel R. Solli, Bahram Jalali, Bahram Jalali, Claus Ropers, Claus Ropers, } "Real-time observation of hidden multi-soliton dynamics in a few-cycle Ti:Sapph oscillator (Conference Presentation) (Withdrawal Notice)", Proc. SPIE 10089, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications II, 1008904 (12 February 2018); doi: 10.1117/12.2255659; https://doi.org/10.1117/12.2255659

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