| 摘要 |
PCT No. PCT/GB91/00703 Sec. 371 Date Nov. 18, 1992 Sec. 102(e) Date Nov. 18, 1992 PCT Filed May 2, 1991 PCT Pub. No. WO91/17593 PCT Pub. Date Nov. 14, 1991.A laser includes a soliton supporting waveguide of SiO2-Al2O3-P2O5with an erbium doping level of 1100 ppm, the fibre having a core radius of 2.5 mu m and a core-cladding refractive index difference of 0.015 operated such that the solitons propagating in the waveguide have a soliton period greater than the amplification period of the laser.
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