TY - JOUR
T1 - Effect of static disorder on sensitivity of coupled resonator optical waveguide gyroscopes
AU - Florio, Fred
AU - Kalantarov, Dmitriy
AU - Search, Christopher P.
N1 - Publisher Copyright:
© 1983-2012 IEEE.
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Coupled resonator optical waveguides (CROWs) have shown theoretical promise as microoptical integrated gyroscopes with sensitivities exceeding comparably sized MEMS gyroscopes. Here, we analyze the effect of static disorder on the rotational sensitivity of a CROW gyroscope. Since CROWs consist of a one-dimensional array of evanescently coupled ring-shaped microresonators, disorder includes random variations of the resonator optical path length and couplings between them resulting from manufacturing errors. We show that the rotational sensitivity of the CROW gyro is relatively stable with respect to variations in the interresonator coupling. By contrast, even modest fluctuations in the resonators' roundtrip optical path length result in substantially lower rotational sensitives. Finally, it is shown that while most random configurations of defects reduce the maximum sensitivity, there are particular configurations for which the rotation sensitivity is significantly higher than that of a CROW without disorder.
AB - Coupled resonator optical waveguides (CROWs) have shown theoretical promise as microoptical integrated gyroscopes with sensitivities exceeding comparably sized MEMS gyroscopes. Here, we analyze the effect of static disorder on the rotational sensitivity of a CROW gyroscope. Since CROWs consist of a one-dimensional array of evanescently coupled ring-shaped microresonators, disorder includes random variations of the resonator optical path length and couplings between them resulting from manufacturing errors. We show that the rotational sensitivity of the CROW gyro is relatively stable with respect to variations in the interresonator coupling. By contrast, even modest fluctuations in the resonators' roundtrip optical path length result in substantially lower rotational sensitives. Finally, it is shown that while most random configurations of defects reduce the maximum sensitivity, there are particular configurations for which the rotation sensitivity is significantly higher than that of a CROW without disorder.
KW - Gyroscopes
KW - Integrated optics devices
KW - Sagnac effect
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U2 - 10.1109/JLT.2014.2345580
DO - 10.1109/JLT.2014.2345580
M3 - Article
AN - SCOPUS:84907482127
SN - 0733-8724
VL - 32
SP - 4020
EP - 4028
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 21
M1 - 6871275
ER -