Title :
Wide-Band Optical Mode Converters for Coupling Between Fibers and Silicon Photonic Wires With Large Misalignment Tolerance
Author :
Kai-Ning Ku ; Lee, M.M.
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
A wideband optical mode converter is presented for coupling between fibers and sub-wavelength silicon photonic wires with large misalignment tolerance. This converter consists of a three-dimensional (3-D) SU-8 taper and silicon inverted nanotapers, which are cascaded and show coupling losses of 2.8 dB and 4.1 dB for the TE- and TM-polarized waves launched from a cleaved single mode fiber. The fiber misalignment tolerance for 3-dB transmittance drop is estimated to be ±3 μm.
Keywords :
nanowires; optical fibre couplers; optical interconnections; silicon; 3D SU-8 taper; fiber misalignment tolerance; loss 2.8 dB; loss 4.1 dB; optical fibre couplers; silicon inverted nanotapers; silicon photonic wires; single mode fiber; wideband optical mode converters; Couplings; Optical fiber devices; Optical fiber polarization; Photonics; Silicon; Wires; Optical fiber couplers; optical interconnections;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2253305
