Murakami et al, "Microlens Tipped on a Single-Mode Fibre End for . . . ", Electronics Lett., vol. 16, No. 9, Apr. 1980, pp. 321-322. |
D'Auria et al, "High Index Microlenses for GaAlAs Laser-Fibre Coupling", Electronics Lett., vol. 16, No. 9, Apr. 1980, pp. 322-344. |
Kuwahara et al, "Efficient Coupling from Semiconductor Lasers into Single-Mode Fibers . . . ", Applied Optics, vol. 19, No. 15, Aug. 1980, pp. 2578-2583. |
Cohen et al, "Microlenses for Coupling Junction Lasers to Optical Fibers", Applied Optics, vol. 13, No. 1, Jan. 1974, pp. 89-94. |