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We present a novel setup for carrier-envelope phase stabilization combining a feedback loop with a feed-forward type stabilization technique to push the residual timing down to 8 attoseconds, setting a new record in stabilization performance.
A spectrally resolved multiple beam interferometer is capable for measuring the carrier-envelope offset phase of ultrashort laser pulses with an accuracy of 70mrad. The performance has been cross-calibrated with a conventional f-to-2f interferometer.
A detection limit of 10 dB below the quantum limit is experimentally demonstrated for a mode-locked-laser-based quantum non-demolition measurement scheme. The scheme is completely collinear and exhibits a large read-out sensitivity.
The noise performance of a feed-forward scheme for carrier-envelope phase stabilization is discussed. This scheme uses an acousto-optic frequency shifter to directly correct for fluctuations of the carrier-envelope phase in a pulse train emitted by a mode-locked laser without manipulating the intracavity dispersion. Generation of zero-offset frequency combs is demonstrated. Furthermore, it is shown...
We propose and demonstrate a novel feed-forward technique for stabilizing the carrier-envelope-offset frequency of a mode-locked laser at unprecedented residual noise levels. This method allows for comb synthesis at arbitrary offset frequencies, including zero offset.
The authors have experimentally demonstrated a novel method that allows for generating a self-referenced pulse train with identical electric field structure of the individual pulses. This method does not require any intervention into the laser, neither are complicated servo electronics required. This method is readily applicable to any type of mode-locked laser, with the measurability of the carrier...
The work investigates the much more broadband self-diffraction (SD) process as an alternative for SPIDER (spectral phase interferometry for direct electric field reconstruction) pulse characterization. To the best of the authors' knowledge, this constitutes the first experimental demonstration of a chi(3) based SPIDER apparatus. For a first experimental demonstration, SD SPIDER setup is employed to...
We propose and demonstrate a novel technique that allows for intrinsic stabilization of an optical frequency comb to zero offset. This method greatly simplifies carrier-envelope phase control and experiments in extreme nonlinear optics.
Novel all-electronic carrier-envelope phase stabilization for amplified pulses with kHz-bandwidth is demonstrated. Residual carrier-envelope phase noise exhibits two major contributions: one glitch-like mechanism from the pump laser and carrier-envelope phase noise inherited from the oscillator.
Performance and noise immunity of different interferometer set-ups for carrier-envelope phase detection are compared. The frequently used Mach–Zehnder interferometer is found to be easily corrupted by acoustic noise contributions and air streaks, whereas a quasi-common-path variant of the f-to-2f interferometer exhibits a 40% reduction of residual noise. This comparative analysis also provides deeper...
A novel all-electronic scheme for real-time measurement and stabilization of the carrier-envelope phase of kHz pulse trains is demonstrated, revealing new insight into the pulse-to-pulse phase fluctuations of such lasers.
We propose and demonstrate a novel quasi-common-path variant of the f-to-2f interferometer that widely removes undesired residual phase drift from femtosecond pulse trains and improves the utility of stabilization schemes in frequency metrology and attophysics.
In switching and coupling devices, both co-propagating and counter-propagating solitons will be exploited to create waveguide structures. The dynamic behaviour of counter-propagating solitons depends on the length of the nonlinear medium and varies from non-oscillating to regular and irregular oscillations. In this paper, we present an in-depth investigation of the irregular regime showing the chaotic...
In this work, the authors demonstrated experimentally the suppression of instabilities of counterpropagating solitons in one (1D) and two-dimensional (2D) periodic photonic lattices. We study the dependence of the soliton instability on the lattice depth and periodicity and identify optimal parameters for stabilisation.
Summary form only given. This presentation aims to demonstrate theoretically and experimentally the use of nonlinear photorefractive structures for two-dimensional flexible soliton networks. Results show that increased flexibility can be achieved when symmetry and anisotropic features of the nonlinearity are considered and the strong nonlinear response of the photorefractive material is exploited.
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