| 摘要 |
According to some embodiments the optical fiber comprises: (i) a glass core doped with greater than 300 ppm of Er2O3 and at least 0.5 wt % of Al2O3, with a radius R1 from about 3μm to about 15μm, a relative refractive index deltaΔ1 from about between 0.3% to 2% relative to the glass cladding; an effective area of LP01 mode between 20μm2 and 250μm2 at 1550 nm, the glass core radius R1 and refractive index are selected such that the core is capable of supporting the propagation and transmission of an optical signal with X number of LP modes at a wavelength of 1550 nm, wherein X is an integer greater than 1 and not greater than 20; and (ii) a glass cladding surrounding and in direct contact with the glass core. |
