Fabry-Pérot Lasers
Fabry-Pérot (FP) QCLs do not have an integrated optical grating to select a single spectral mode. Therefore they emit multimode light in a broad range that an cover more than 10% of the central emitting wavelength. FP-QCLs can operate at room temperature. The emission is in the same wavelength range as for DFB QCLs. FP-QCLs are well adapted when broad band emission is acceptable.
