TY - JOUR
T1 - Proposal for temperature-independent optical sensor based on asymmetric Mach–Zehnder interferometer
AU - Luo, Yanxia
AU - Yin, Rui
AU - Ji, Wei
AU - Huang, Qingjie
AU - Cui, Jianmin
AU - Jiang, Shouzhen
AU - Gong, Zisu
AU - Liu, Fengyu
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2021/11
Y1 - 2021/11
N2 - An optical sensor based on dual asymmetric Mach–Zehnder interferometers (AMZIs) cascade with temperature-independent is proposed. The optical sensor based on AMZI is very sensitive to the change of ambient temperature. The temperature shift will lead to the change of the refractive index of the optical waveguide, which will affect the accuracy of the measurement of target-parameters. The designed optical sensor is composed of two AMZIs cascaded, one acting as a sensing AMZI and the other as a compensating AMZI. When the temperature changes, the sensing curve of the sensing AMZI shifts. The compensating AMZI can make the sensing curve goes into reverse to realize the compensation. The error of compensation results is reduced by 2–3 orders of magnitude, the compensation temperature range is from 5 to 45 °C, and the error is reduced to < 0.1%. This cascade compensation structure can be used not only for based on AMZI optical sensor, but for other interference optical devices.
AB - An optical sensor based on dual asymmetric Mach–Zehnder interferometers (AMZIs) cascade with temperature-independent is proposed. The optical sensor based on AMZI is very sensitive to the change of ambient temperature. The temperature shift will lead to the change of the refractive index of the optical waveguide, which will affect the accuracy of the measurement of target-parameters. The designed optical sensor is composed of two AMZIs cascaded, one acting as a sensing AMZI and the other as a compensating AMZI. When the temperature changes, the sensing curve of the sensing AMZI shifts. The compensating AMZI can make the sensing curve goes into reverse to realize the compensation. The error of compensation results is reduced by 2–3 orders of magnitude, the compensation temperature range is from 5 to 45 °C, and the error is reduced to < 0.1%. This cascade compensation structure can be used not only for based on AMZI optical sensor, but for other interference optical devices.
KW - Asymmetric Mach–Zehnder interferometer
KW - Fabrication tolerance analysis
KW - Optical sensor
KW - Temperature independence
UR - http://www.scopus.com/inward/record.url?scp=85117346035&partnerID=8YFLogxK
U2 - 10.1007/s11082-021-03271-6
DO - 10.1007/s11082-021-03271-6
M3 - Article
AN - SCOPUS:85117346035
SN - 0306-8919
VL - 53
JO - Optical and Quantum Electronics
JF - Optical and Quantum Electronics
IS - 11
M1 - 623
ER -