Title :
On-chip synthesis of circularly polarized light with a 2D grating emitter
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Minnesota, Minneapolis, MN, USA
Abstract :
We demonstrate a 2D grating emitter that emits circularly polarized light beam synthesized from a waveguide mode. A micro-heater is integrated to control handedness of the circularly polarized light. The device shows emission efficiency of about 8%, while simulations predict much higher efficiency of 72% with ideal conditions. Such a device could serve as an interface between silicon photonic waveguides and helicity-dependent optoelectronic devices.
Keywords :
diffraction gratings; elemental semiconductors; integrated optoelectronics; light polarisation; optical waveguides; silicon; 2D grating emitter; Si; circularly polarized light beam; circularly polarized light handedness; emission efficiency; helicity-dependent optoelectronic devices; microheater; on-chip synthesis; silicon photonic waveguides; waveguide mode; Gratings; Optical device fabrication; Optical polarization; Optical waveguides; Photonics; Silicon; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
