1. U. KILLAT, W. JASMER and J. KRUEGER, ‘Systems Aspects and Components for Broadband Switching’, International Switching Symposium Florence, 1984, pp. C2-1, C2-6.
2. M. KONDO, Y. OHTA, M. FUJUWARA and M. SAKAGUCHI,IEEE J. Quantum Electron. QE-18 (1982) 1759.
3. A. NEYER,ibid. QE-20 (1984) 994.
4. K. ISHIDA, H. NAKAMURA, H. INOUE, S. TSUJI and H. MATSUMURA, ‘InGaAsP/Inp multimode optical switches operated by a carrier-induced refractive index change’, Technical Digest of the 5th Integrated Optics and Optical Communication Conference, Venice, October 1985, pp. 357–360
5. R. I. MacDONALD and E. H. HARA,Electron. Lett. 16 (1978) 402.