R. Harris, R. G. Walker, R. A. Griffin, R. I. Johnstone, N. M. B. Perney, and N. D. Whitbread, "Integrated high functionality GaAs modulators for 10 & 40Gb/s transmission,"
in Integrated Photonics Research, A. Sawchuk, ed.,
Vol. 58 of OSA Trends in Optics and Photonics Series
(Optical Society of America, 2001), paper IME3.