Title :
Wide-Angle Low-Loss 1Ã\x972 Multimode Interference Optical Power Divider with Tilted Input and Output Waveguides
Author :
Lin, Yih-Bin ; Ting, Tien-Lun ; Wang, Way-Seen
Author_Institution :
Lunghwa Univ. of Sci. and Technol., Taoyuan
fDate :
Aug. 12 2007-July 16 2007
Abstract :
Multimode interference (MMI) coupler with tilted input/output waveguides is proposed. By the self-imaging theory of MMI couplers, the output fields at the end of the multimode region have tilted phase fronts and automatically propagate toward the branching waveguides. The waveguides with layered structure and vertical sidewalls are used to simulate the proposed device. The excess loss is only 0.24 dB even though the branch angle is 20 degrees.
Keywords :
light interference; optical beam splitters; optical couplers; optical waveguides; branching waveguides; multimode interference coupler; multimode region; self-imaging theory; tilted waveguides; wide-angle low-loss 1x2 optical power divider; Electrooptical waveguides; Interference; Optical coupling; Optical losses; Optical propagation; Optical refraction; Optical variables control; Optical waveguide theory; Optical waveguides; Power dividers; multimode interference; optical waveguide; power divider;
Conference_Titel :
Optical MEMS and Nanophotonics, 2007 IEEE/LEOS International Conference on
Conference_Location :
Hualien
Print_ISBN :
978-1-4244-0641-8
DOI :
10.1109/OMEMS.2007.4373866
