title: On-chip two-mode division multiplexing using tapered directional coupler-based mode multiplexer and demultiplexer.
abstract: We demonstrate a novel on-chip two-mode division multiplexing circuit using a tapered directional coupler-based TE(0)&TE(1) mode multiplexer and demultiplexer on the silicon-on-insulator platform. A low insertion loss (0.3 dB), low mode crosstalk (< -16 dB), wide bandwidth (~100 nm), and large fabrication tolerance (20 nm) are measured. An on-chip mode multiplexing experiment is carried out on the fabricated circuit with non return-to-zero (NRZ) on-off keying (OOK) signals at 40 Gbit/s. The experimental results show clear eye diagrams and moderate power penalty for both TE(0) and TE(1) modes.
authors.affiliation: Department of Photonics Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark. yudin@fotonik.dtu.dk
authors.forename: Yunhong
authors.initials: Y
authors.lastname: Ding
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.forename: Francesco
authors.initials: F
authors.lastname: Da Ros
authors.forename: Bo
authors.initials: B
authors.lastname: Huang
authors.forename: Haiyan
authors.initials: H
authors.lastname: Ou
authors.forename: Christophe
authors.initials: C
authors.lastname: Peucheret
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D012031:Refractometry / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*