Final answer:
Fabry-Perot and DFB lasers are specifically designed for single-mode applications, with the former using mirrors and the latter using an embedded grating.
Step-by-step explanation:
On the one hand, the Fabry Perot laser has a wide spectrum width and is a multi-longitudinal mode laser, whereas the DFB laser has a narrow spectrum width and is a single longitudinal mode laser. These types of lasers are engineered to produce light in a highly coherent and making them suitable for applications that require precise and stable wavelength emission.
Fabry-Perot laser uses a pair of partially silvered mirrors to form a resonant cavity, while DFB lasers utilize a grating embedded within the laser medium to ensure single longitudinal mode operation. The concept of chirped pulse amplification, developed by Strickland and Mourou, although related to laser technology, pertains to a different aspect where the power of lasers is greatly increased using a specific type of grating that segments the beam components.