Affiliation:
1. Henan Normal University
2. Henan Key Laboratory of Optoelectronic Sensing Integrated Application
3. Engineering Laboratory of Intelligent Additive Manufacturing of Henan Province
Abstract
Electro-optic (EO) modulators based on polymer-embedded silicon racetrack resonators (EOM-PSRR) are investigated. To obtain the single-mode propagation condition, the mode and transmission characteristics of the polymer-embedded silicon waveguide are simulated by the finite element method (FEM). By adding a static bias voltage, the EO modulation performances of EOM-PSRR embedded with lithium niobate (
L
i
N
b
O
3
), EO polymer (AJ309), and hybrid EO
p
o
l
y
m
e
r
/
T
i
O
2
material (HEOT) are studied. The results show that the EOM-PSRR embedded with
L
i
N
b
O
3
achieves a high modulation depth (MD) of
∼
27.6
d
B
with a low EO wavelength tuning (
λ
E
O
) of 10 pm/V. However, the EOM-PSRR embedded with HEOT has a high
λ
E
O
of 100 pm/V but a low MD of
∼
6.2
d
B
with an extinction ratio of
∼
5.2
d
B
. The EOM-PSRR has potential application prospects in optical communication, optical signal processing, and optical network links. It can be produced as an optical frequency comb generator in a dense wavelength division multiplexing system, an EO frequency shifter for laser beams, an optical soliton former, and a photon time-delay device in a phased array radar.
Funder
National Natural Science Foundation of China
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering