Open AccessTunable optical coupler controlled by optical gradient forces
Author(s) -
King Yan Fong,
Wolfram Pernice,
Mo Li,
Hong X. Tang
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.015098
Subject(s) - optics , optical force , materials science , optical power , power dividers and directional couplers , modulation (music) , wideband , silicon nitride , transmission (telecommunications) , pressure gradient force , optoelectronics , optical switch , physics , silicon , optical tweezers , laser , telecommunications , computer science , acoustics
We demonstrate optical gradient force-tunable directional couplers in free-standing silicon nitride slot waveguides. Utilizing device geometries optimized for strong optomechanical interactions allows us to control the optical transmission without the aid of a cavity. Static, wideband tuning as well as low-power optical modulation is achieved.