Optical Ring Resonators

Optical Ring Resonators

An optical ring resonator is a set of waveguides in which at least one is a closed loop coupled some sort of light input and output. (These can be, but are not limited to being, waveguides.) The concepts behind optical ring resonators are the same as those behind whispering galleries except that they use light and obey the properties behind constructive interference and total internal reflection. When light of the resonant wavelength is passed through the loop from input waveguide, it builds up in intensity over multiple round-trips due to constructive interference and is output to the output bus waveguide which serves as a detector waveguide. Because only a select few wavelengths will be at resonance within the loop, the optical ring resonator functions as a filter. Additionally, as implied earlier, two or more ring waveguides can be coupled to each other to form an add/drop optical filter.

Read more about Optical Ring Resonators:  Background, Theory, Double Ring Resonators, Applications

Other articles related to "optical ring resonators, optical ring resonator, optical, optical ring":

Optical Ring Resonators - Applications
... Due to the nature of the optical ring resonator and how it "filters" certain wavelengths of light passing through, it is possible to create high-order optical filters by cascading many optical ring ... This would allow for "small size, low losses, and integrability into optical networks." Additionally, since the resonance wavelengths can be changed by simply increasing or ... If an optical fiber experiences mechanical strain, the dimensions of the fiber will be altered, thus resulting in a change in the resonant wavelength of ...

Famous quotes containing the words optical and/or ring:

    People who have realized that this is a dream imagine that it is easy to wake up, and are angry with those who continue sleeping, not considering that the whole world that environs them does not permit them to wake. Life proceeds as a series of optical illusions, artificial needs and imaginary sensations.
    Alexander Herzen (1812–1870)

    Genius resembles a bell; in order to ring it must be suspended into pure air, and when a foreign body touches it, its joyful tone is silenced.
    Franz Grillparzer (1791–1872)