Number | Name | Date | Kind |
---|---|---|---|
3208342 | Nethercot | Sep 1965 | |
3311845 | Koester | Mar 1967 | |
3614198 | Martin et al. | Oct 1971 | |
3650602 | Lee et al. | Mar 1972 | |
3674337 | Marcatili | Jul 1972 | |
3695745 | Furukawa | Oct 1972 | |
3753157 | Ash et al. | Aug 1973 |
Entry |
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ash et al., "Switchable Optical Waveguide", IBM Technical Disclosure Bulln, Vol. 14, No. 3, Aug. 1971, pp. 999-1000. |