1. Yu. V. Gulyaev, M. Ya. Mesh, and V. V. Proklov, Modulation Effects in Fiber-Optic Waveguides and Their Applications [in Russian], Radio i Svyaz’, Moscow (1991).
2. D. E. N. Davies and S. A. Kingsley, Electron. Lett. 10, 21 (1974).
3. N. N. Evtikheev, É, A. Zasovin, and D. I. Mirovitskii, Itogi Nauki i Tekhn. Ser. Svyaz’ 8, 24 (1991).
4. M. Born and E. Wolf, Principles of Optics, 4th ed (Pergamon Press, Oxford, 1969) [Russ. transl., Nauka, Moscow, 1973].
5. M. M. Butusov, S. L. Galkin et al., Fiber Optics and Instrument Manufacture [in Russian], Mashinostroenie, Leningrad (1987).