We study the transmission of an optical field through a rotating coupled resonator optical waveguide (CROW) in which the size of the ring resonators changes from one ring to the next. We focus on symmetric integer wavelength chirps of the circumference of the rings relative to the central ring in the array. The transfer matrix method is used to obtain the transmission as a function of the inertial rotation rate Ω resulting from the Sagnac effect. Chirping increases the slope of the oscillations in the transmission as a function of Ω, which can be exploited to further enhance the rotation sensitivity beyond that of a CROW with uniform resonators.
© 2011 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: January 14, 2011
Manuscript Accepted: February 17, 2011
Published: March 28, 2011
John R. E. Toland, Zachary A. Kaston, Christopher Sorrentino, and Christopher P. Search, "Chirped area coupled resonator optical waveguide gyroscope," Opt. Lett. 36, 1221-1223 (2011)