Title :
Wavelength switching and routing using absorption and resonance
Author :
Little, B.E. ; Haus, H.A. ; Foresi, J.S. ; Kimerling, L.C. ; Ippen, E.P. ; Ripin, D.J.
Author_Institution :
Res. Lab. of Electron., MIT, Cambridge, MA, USA
fDate :
6/1/1998 12:00:00 AM
Abstract :
A resonator side coupled to a pair of waveguides can switch an optical signal between two ports by means of absorption. The absorptive mechanism is used to suppress the resonant power transfer, rather than to promote loss. Thus, the input signal only suffers small attenuation, provided that the mode volumes of the resonators can be made small enough. Multiply-coupled resonators lead to improved crosstalk performance for both the ON and OFF switched states. The performance of such devices are analyzed analytically, and universal switching curves are derived.
Keywords :
electro-optical switches; integrated optics; light absorption; optical communication equipment; optical losses; optical resonators; optical waveguides; telecommunication network routing; OFF switched states; ON switched states; absorption; absorptive mechanism; improved crosstalk performance; input signal; mode volumes; multiply-coupled resonators; optical signal; resonance; resonant power transfer; resonator side coupling; small attenuation; universal switching curves; wavelength routing; wavelength switching; Absorption; Optical attenuators; Optical coupling; Optical crosstalk; Optical resonators; Optical switches; Optical waveguides; Performance analysis; Resonance; Wavelength routing;
Journal_Title :
Photonics Technology Letters, IEEE
