Plasma chemical technology is experimentally applied to the fabrication of a Bi-activated alumosilicate-core pure-silica-cladding fiber preform. To the best of our knowledge, this is the first time this technology has been applied in this way. We measure gain efficiency at pumping by a $1058\mathrm{nm}$ wavelength Yb fiber laser in a piece of a newly obtained fiber $20\mathrm{m}$ in length within $100–1200\mathrm{nm}$ wavelengths band. The gain efficiency reaches as high as $0.2\mathrm{dB}/\mathrm{mW}$ . Bi-activated alumosilicate-core pure-silica-cladding fiber that is not more than $12\mathrm{m}$ in length serves a basis for a $1\mathrm{W}$ output power fiber laser emitting at the wavelength of $1160\mathrm{nm}$ with 8% slope efficiency. We also measure the photoluminescence spectrum and kinetics of Bi centers responsible for laser emission under the excitation of $193\mathrm{nm}$ wavelength ArF laser pulses.