Generation of 01-TW 5-fs optical pulses at a 1-kHz repetition rate

Abstract

A compact all-solid-state femtosecond Ti:sapphire oscillator¿amplifier system using no grating-based pulse stretcher produces 20-fs, 1.5-mJ pulses at a 1-kHz repetition rate. The pulses are subsequently compressed in a hollow-fiber chirped-mirror compressor. The system delivers bandwidth-limited 5-fs, 0.5-mJ pulses at 780 nm in a diffraction-limited beam.

Generation of MeV electrons and positrons with femtosecond pulses from a table-top laser system

“…10 and here demonstrate that a 10 Hz laser driven positron source is indeed realizable. Given the prodigious technological advances in laser technology, 56 it is almost certain that in the near future there will be laser systems delivering pulsed power of 100 TW or more at repetition rates of 1 kHz. The fluxes of positrons that can be generated by such lasers would then be comparable to those from electron linear accelerators using a facility that can fit in a normal size room.…”

Multimode Nonlinear Fibre Optics: Theory and Applications

“…Capillary guidance is used in this context for several high-power applications. One of these is pulse compression, where the nonlinearity of the gas in the capillary is exploited to spectrally broaden a pulse by self-phase modulation, which allows the pulse to be compressed after the capillary by purely dispersive means such as gratings or dispersive mirrors (Sartania et al, 1997). For intensities above ∼10 13 W/cm 2 , the electric field of the laser is large enough to start ionising the gaseous medium.…”

“…Non-fibre-based laser systems are capable of delivering even larger peak powers, for example commercial Ti:sapphire fs lasers now reach the GW regime. Such extreme powers cannot be transmitted in conventional glass fibres at all without destroying them (Gaeta, 2000), but there is a range of applications for such pulses coupled into hollow-core capillaries, such as pulse compression (Sartania et al, 1997) and high-harmonic generation (Rundquist et al, 1998). For typical experimental parameters, these capillaries act as optical waveguides for a large number of spatial modes and modal interactions contribute significantly to the system dynamics.…”

Pulse compression of submillijoule few-optical-cycle infrared laser pulses using chirped mirrors

“…At 800 nm, submillijoule few-optical-cycle laser pulses are commonly generated using the combination of self-phase modulation (SPM) through propagation of submillijoule multicycle pulses in a hollow-core fiber filled with a noble gas followed by dispersion compensation using chirped mirrors [11,12]. This is the standard experimental approach for dispersion compensation of 800 nm few-opticalcycle laser pulses and used in many laboratories worldwide.…”