TY - JOUR
T1 - Ultra-sensitive chip scale Sagnac gyroscope based on periodically modulated coupling of a coupled resonator optical waveguide
AU - Sorrentino, Christopher
AU - Toland, John R.E.
AU - Search, Christopher P.
PY - 2012/1/2
Y1 - 2012/1/2
N2 - We analyze the sensitivity to inertial rotations Ωof a micron scale integrated gyroscope consisting of a coupled resonator optical waveguide (CROW). We show here that by periodic modulation of the evanescent coupling between resonators, the sensitivity to rotations can be enhanced by a factor up to 109 in comparison to a conventional CROW with uniform coupling between resonators. Moreover, the overall shape of the transmission through this CROW superlattice is qualitatively changed resulting in a single sharp transmission resonance located at Ω= 0s-1 instead of a broad transmission band. The modulated coupling therefore allows the CROW gyroscope to operate without phase biasing and with sensitivities suitable for inertial navigation even with the inclusion of resonator losses.
AB - We analyze the sensitivity to inertial rotations Ωof a micron scale integrated gyroscope consisting of a coupled resonator optical waveguide (CROW). We show here that by periodic modulation of the evanescent coupling between resonators, the sensitivity to rotations can be enhanced by a factor up to 109 in comparison to a conventional CROW with uniform coupling between resonators. Moreover, the overall shape of the transmission through this CROW superlattice is qualitatively changed resulting in a single sharp transmission resonance located at Ω= 0s-1 instead of a broad transmission band. The modulated coupling therefore allows the CROW gyroscope to operate without phase biasing and with sensitivities suitable for inertial navigation even with the inclusion of resonator losses.
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U2 - 10.1364/OE.20.000354
DO - 10.1364/OE.20.000354
M3 - Article
C2 - 22274359
AN - SCOPUS:84855470703
SN - 1094-4087
VL - 20
SP - 354
EP - 363
JO - Optics Express
JF - Optics Express
IS - 1
ER -