D. Gloge andE. A. J. Marcatili,Bell Syst. Tech. J. 52 (1973) 1563?78.
T. Okoshi,Proceedings of Conference on Integrated Optics and Optical Communication (C2.1) (Japan, 1977).
W. E. Martin,Appl. Opt. 13 (1974) 2112?16.
H. M. Presby, W. Mammel andR. M. Derosier,Rev. Sci. Instrum. 47 (1976) 348?52.
M. E. Marhic, P. S. Ho andM. Epstein,Appl. Phys. Lett. 26 (1975) 574?75.
M. J. Saunders andW. B. Gardner,Appl. Opt. 16 (1977) 2368?71.
F. T. Stone,Appl. Opt. 16 (1977) 2738?42.
W. Eickhoff andE. Weidal,Opt. Quant. Elect. 7 (1975) 109?13.
M. Ikeda, M. Tateda andH. Yoshikiyo,Appl. Opt. 14 (1975) 814?16.
T. Okoshi andK. Hotate,Appl. Opt. 15 (1976) 2756?64.
K. Hotate andT. Okoshi,Proceedings of Conference on Integrated Optics and Optical Communication, (C2.3) (Japan, 1977).
F. Brinkmeyer,Appl. Opt. 15 (1977) 2802?03.
F. M. E. Sladen, D. N. Payne andM. J. Adams,Appl. Phys. Lett. 28 (1976) 255?58.
G. T. Sumner,Opt. Quant. Elect. 9 (1977) 79?82.
J. A. Arnaud andR. M. Derosier,Bell Syst. Tech J. 55 (1976) 1489?1508.
M. J. Adams, D. N. Payne andF. M. E. Sladen,Elect. Lett. 12 (1976) 281?83.
P. Hazan,Elect. Lett. 14 (1978) 158?60.
R. Olshansky,Appl. Opt. 15 (1976) 782?88.
W. J. Stewart,Elect. Lett. 11 (1975) 516?18.
W. J. Stewartm Proceedings of the Conference on Integrated Optics and Optical Communication (C2.2) (Japan, 1977).
M. J. Adams, D. N. Payne andF. M. E. Sladen,Elect. Lett. 11 (1975) 238?40.
M. Born andE. Wolf, ?Principles of Optics? (Pergamon Press, Oxford, 1975) p. 416.
B. P. Nelson, private communication.
K. Petermann,Arch. Elecktron and Uebertragungstech 31 (1977) 201?04.
R. Olshansky,Appl. Opt. 15 (1976) 2773?77.
