Title :
Integrated optical waveguide polarizer based on photobleaching-induced birefringence in an electrooptic polymer
Author :
Sang-Shin Lee ; Seh-Won Ahn ; Sang-Yang Shin
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
A TE-pass waveguide polarizer is fabricated by utilizing the photobleaching-induced birefringence at room temperature in an electrooptic polymer. The polarizer consists of the photobleached waveguide supporting only TE mode, which is integrated in the middle of the etched rib waveguide supporting both TE and TM modes. It has a simple structure and requires no high temperature process like poling. The measured polarization extinction ratio is about 21 dB at the wavelengths of 1.3 and 1.55 μm, and the estimated excess loss is about 0.4 dB.
Keywords :
birefringence; electro-optical devices; integrated optics; optical communication equipment; optical losses; optical polarisers; optical polymers; optical saturable absorption; optical waveguides; rib waveguides; 1.3 mum; 1.55 mum; TE-pass waveguide polarizer fabrication; electrooptic polymer; etched rib waveguide; excess loss; integrated optical waveguide polarizer; optical communication equipment; photobleaching-induced birefringence; polarization extinction ratio; room temperature; Birefringence; Electrooptical waveguides; Etching; Integrated optics; Optical polarization; Optical polymers; Optical waveguides; Photobleaching; Tellurium; Temperature;
Journal_Title :
Photonics Technology Letters, IEEE
