A cavity switch is a device that modulates cavity properties in the time domain. It is known as
Q switching if the quality factor of cavities is under modulation. There are other properties such as the cavity
mode volume
In fiber optics, mode volume is the number of bound modes that an optical fiber is capable of supporting.
The mode volume ''M'' is approximately given by V^2 \over 2 and \left(\right), respectively for step-index and power-law index profile fi ...
, resonant frequency, phase delay, and optical
local density of states
In solid state physics and condensed matter physics, the density of states (DOS) of a system describes the number of modes per unit frequency range. The density of states is defined as D(E) = N(E)/V , where N(E)\delta E is the number of states i ...
can be switched or modulated.
Cavity switches are mainly used in telecommunications and quantum electrodynamics studies.
See also
*
Q-switching
Q-switching, sometimes known as giant pulse formation or Q-spoiling, is a technique by which a laser can be made to produce a pulsed output beam. The technique allows the production of light pulses with extremely high (gigawatt) peak power, much hi ...
References
Laser science
Optoelectronics
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