Low Energy Hollow Core Fiber Pulse Compression Using Molecular Gases

We show that hydrofluorocarbons can be used for efficient hollow core fiber pulse broadening. Fivefold compression, 45 fs down to ~9 fs, of low-energy titanium-sapphire laser pulses
$(\sim 16\mu \mathrm{J})$
is achieved. © 2019 The Author(s)