Title :
Polarization dependent loss in polymeric rib channel waveguide
Author :
Min, Yoo Hong ; Lee, Myung-Hyun ; Do, Jung Yun
Author_Institution :
Basic Res. Lab., Electron. & Telecommun. Res. Inst., Daejeon, South Korea
Abstract :
Large polarization dependent loss (PDL) as high as 15 dB was observed in the rib-type channel waveguide fabricated using a birefringent polymer. The PDL mechanism was explained by the mode-mode coupling between the TM mode of a rib and the TE mode of a slab waveguides. This TM-TE mode conversion is due to nonuniform off-diagonal component of the dielectric susceptibility tensor which is generated by a thermal stress during the curing process.
Keywords :
birefringence; light polarisation; optical couplers; optical fabrication; optical losses; optical polymers; optical susceptibility; optical waveguides; rib waveguides; thermal stresses; 15 dB; TE mode; TM mode; TM-TE mode conversion; birefringent polymer; curing process; dielectric susceptibility tensor; fabrication; large polarization dependent loss; mode-mode coupling; nonuniform off-diagonal component; polarization dependent loss; polymeric rib channel waveguide; rib-type channel waveguide; slab waveguides; thermal stress; Birefringence; Curing; Dielectrics; Page description languages; Polarization; Polymers; Slabs; Tellurium; Tensile stress; Thermal stresses;
Journal_Title :
Photonics Technology Letters, IEEE
