Single-shot implementation of dispersion-scan for the characterization of ultrashort laser pulses

Abstract

We demonstrate a novel, single-shot ultrafast diagnostic, based on the dispersion-scan (d-scan) technique. In this implementation, rather than scanning wedges to vary the dispersion as in standard d-scan, the pulse to be measured experiences a spatially varying amount of dispersion in a Littrow prism. The resulting beam is then imaged into a second-harmonic generation crystal and an imaging spectrometer is used to measure the two-dimensional trace, which is analyzed using the d-scan retrieval algorithm. We compare the single-shot implementation with the standard d-scan for the measurement of sub-3.5-fs pulses from a hollow core fiber pulse compressor. We show that the retrieval algorithm used to extract amplitude and phase of the pulse provides comparable results, proving the validity of the new single-shot implementation down to near single-cycle durations.

6 pages, 4 figures

References in corpus (1)

• Compression of CEP-stable multi-mJ laser pulses down to 4 fs in long hollow fibers

Cited by in corpus (10)

• Deep learning reconstruction of ultrashort pulses from 2D spatial intensity patterns recorded by an all-in-line system in a single-shot
• Universal route to optimal few- to single-cycle pulse generation in hollow-core fiber compressors
• Characterizing ultrashort laser pulses with second harmonic dispersion scans
• Measurement of 10 fs pulses across the entire Visible to Near-Infrared Spectral Range
• Inline self-diffraction dispersion-scan of over octave-spanning pulses in the single-cycle regime
• Single-shot d-scan technique for ultrashort laser pulse characterization using transverse second-harmonic generation in random nonlinear crystals
• Tunable high-harmonic generation by chromatic focusing of few-cycle laser pulses
• Single-shot Dispersion Sampling for Optical Pulse Reconstruction
• Measuring ultrafast laser pulses using a single-shot amplitude swing implementation
• Reverse design of the ideal pulse for hollow capillary fiber post-compression schemes