Title :
Theory of polarization rotation and conversion in vertically coupled microresonators
Author :
Little, Brent E. ; Chu, Sai T.
Author_Institution :
Lab. for Phys. Sci., Maryland Univ., College Park, MD, USA
fDate :
4/1/2000 12:00:00 AM
Abstract :
Two orthogonally polarized waveguide modes can exchange power through an intermediate level, if the polarization state of that level is tilted with respect to the polarization states of the waveguide. Microrings with modest sidewall angles support such tilted modes. Ultracompact, wavelength selective polarization rotators might be achieved. Simple analytic expressions are derived for polarization rotation by vertically-coupled resonators in terms of geometrical factors.
Keywords :
integrated optics; light polarisation; micro-optics; optical couplers; optical polarisers; optical resonators; optical waveguide filters; optical waveguide theory; geometrical factors; intermediate level; microrings; modest sidewall angles; orthogonally polarized waveguide modes; polarization conversion; polarization rotation; polarization state; polarization states; power exchange; simple analytic expressions; tilted modes; ultracompact wavelength selective polarization rotators; vertically coupled microresonators; vertically-coupled resonators; waveguide; Birefringence; Integrated optics; Laboratories; Microcavities; Optical polarization; Optical resonators; Optical ring resonators; Optical waveguides; Resonance; Tellurium;
Journal_Title :
Photonics Technology Letters, IEEE
