Resonant Cavity in Optical Fiber Communication
An optical cavity, resonating cavity or optical resonator is an arrangement of or other optical elements that confines similarly to how a confines microwaves. Actually, magnetic field inertia (defined by the inductance L) controls the rate of change of current for a given voltage in a circit, in exactly the same way as the inertial mass controls the change of velocity for a given force. This characteristic is a direct consequence of the fact that laser oscillation takes place only along a longitudinal axis of an optical resonator, which can be. They work by constructive and destructive interference of waves in an enclosed region.
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