A Fabry-Perot Laser Diode is an oscillator in which two mirrors are separated by an amplifying medium with an inverted population, making a Fabry-Perot cavity. Standard diode lasers are Fabry-Perot lasers.

Fabry-Perot laser diodes are the most common type of Diode Laser and are the most economical, but they are generally slower and more noisy than distributed Feedback (DFB) lasers.