Specifications include, but are not limited to: • Broadband source/tunable laser with spectral range of 3-13 microns. Note: Not mandatory to cover whole range but should be capable of probing species mentioned in the following point. • The laser system MUST be able to probe the following combustion intermediates at 1500 K and 1 atm. • CO, N2O, CO2, H2O, CH4, C2H2, NH3, C2H4, NH3, C3H6, butadiene, NO and Formaldehyde. • Temporal resolution of 1 MHz or higher. • Include all the components required to operate as a standalone device. • Chiller and associated electronics for safe operation of laser. • The laser driver and associated electronics required for safe operation of the system. • The laser system MUST be able to trigger using external trigger voltage signal.