The generation of ultrafast and intense light pulses is an underpinning technology throughout the electromagnetic spectrum enabling industrial and academic exploitation in a plethora of applications across the sciences. A recent system has been semiconductor-based devices for pulse generation in the optical range. These benefit from inexpensive wafer scale production and low system costs and are an enabling technology in a range of applications. However, in the mid-wave infrared (MWIR, 3 – 5µm wavelength), a spectral range with countless molecular signatures and transparent atmospheric windows, a semiconductor technology platform for intense and short pulse generation has yet to be realised. Such sources would have an important impact in frequency comb spectroscopy as a vast number of molecular signatures exist in the MWIR. This project will breakthrough this technological gap to realise semiconductor-based MWIR ultrafast sources using the unique properties of Interband Cascade Lasers and new 2D materials for the MWIR. The project will innovate in several aspects that have not been previously brought together through new laser designs, engineering 2D materials for high nonlinearities and the realisation of entirely new approach for short pulse and frequency comb generation. This will be based on our recent work in the field, providing an important base for the project. The work will be in collaboration with the University of Montpellier, CEA Grenoble and mirSense.