Open AccessFlexible optical manipulation of ring resonator by frequency detuning and double-port excitation
Author(s) -
Yong Geng,
Tongtong Zhu,
Haiyi Lv,
Yongyin Cao,
Fangkui Sun,
Weiqiang Ding
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.015863
Subject(s) - resonator , optics , port (circuit theory) , ring (chemistry) , waveguide , physics , excitation , photonics , optoelectronics , electrical engineering , engineering , chemistry , organic chemistry , quantum mechanics
Optical force exerted on a ring resonator, which can move freely in plane, is investigated using the finite-difference in time-domain method. In order to manipulate the ring resonator more flexibly, two assistant waveguides are introduced to form a microring resonator based add-drop device. Results show that a blue tuned source is more suitable for the manipulation of the ring, rather than the central resonant frequency as expected. A red-tuned frequency, however, is difficult to trap the ring stably. When the frequency detuning is combined with selected double-port excitation, the ring can be trapped stably at some discrete positions, some determined regions, or be transported continuously along the waveguide. This optically reconfigurable opto-mechanical resonant system may find potential applications in tunable photonic devices and precise sensing.