Optical resonators and Gaussian beams
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Optical resonators and Gaussian beams
Lesson
Open resonators
Longitudinal and transverse modes
Figure 2 : longitudinal and transverse modes in a resonant cavity.
Figure 3 : Spectral repartition of the longitudinal modes for a given laser.
Stability
Periodical structure of laser cavities
Figure 4 : Unfolded cavity
Gaussian beams
Spherical Gaussian wave
Figure 10 : Gaussian profile for the intensity
Gaussian beams focusing and mode matching
Figure 13 : Transformation of a Gaussian beam
Figure 14 : Evolution of the image waist position as a function of the object waist position (for different sizes of the object waist)
Fundamental Gaussian mode and laser resonator
Other resonators
Figure 17 : Different laser resonator geometries
Figure 18 : Intricate laser resonator : an example
High order modes
Laguerre-Gaussian Modes
Figure 21 : Spatial energy distribution for Laguerre-Gaussian modes.
Case study
Figure 1 : Scheme of the laser
Preliminary study of the hemispheric resonator
Stability
Figure 2 : scheme of the resonator
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