Title :
Nonreciprocal Polarization Converter Consisting of Asymmetric Waveguide With Magnetooptic Cladding: Theory and Simulation
Author :
Amemiya, Tomohiro ; Tanemura, Takuo ; Nakano, Yoshiaki
Author_Institution :
Res. Center for Adv. Sci. & Technol., Univ. of Tokyo, Tokyo
fDate :
7/1/2009 12:00:00 AM
Abstract :
A nonreciprocal polarization converter compatible with InP-based photonic integrated circuits is proposed. The device consists of an asymmetric InGaAsP waveguide combined with a ferrimagnetic cerium-substituted yttrium iron garnet layer. It makes use of the nonreciprocal conversion of the polarization state in the waveguide. A nonreciprocal TE-TM conversion efficiency of 93% at 1.55 mum wavelength can be obtained with a device length of 0.27 mm.
Keywords :
III-V semiconductors; claddings; finite difference methods; gallium arsenide; gallium compounds; indium compounds; integrated optics; light polarisation; magneto-optical effects; optical waveguides; yttrium compounds; Ce:YIG; InGaAsP; InP; asymmetric waveguide; ferrimagnetic cerium-substituted yttrium iron garnet layer; finite-difference method; magnetooptic cladding; nonreciprocal polarization converter; photonic integrated circuit; size 0.27 mm; wavelength 1.55 mum; Circuit simulation; Ferrimagnetic materials; Garnets; Iron; Magnetooptic devices; Photonic integrated circuits; Polarization; Waveguide theory; Wavelength conversion; Yttrium; Cerium-substituted yttrium iron garnet (Ce:YIG); III–V semiconductor; finite-difference method (FDM) method; magnetooptical effect; photonic integrated circuits (PICs); polarization converter; waveguide optical isolator;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2009.2013123
