An all-fiber pulsed erbium laser with pulse width of 2.4 ns working in a MOPA configuration has been created. Cladding pumped double clad erbium doped large mode area fiber was used in the final stage amplifier. Peculiarity of the current work is utilization of custom-made multimode diode wavelength stabilized at 981±0.5 nm – wavelength of maximum absorption by Er ions. It allowed us to shorten Er-doped fiber down to 1.7 m and keep a reasonably high pump-to signal conversion efficiency of 8.4%. The record output peak power for all-fiber amplifiers of 84 kW was achieved within 1555.9±0.15 nm spectral range.
M. M. Khudyakov, M. M. Bubnov, A. K. Senatorov, D. S. Lipatov, A. N. Guryanov, A. A. Rybaltovsky, O. V. Butov, L. V. Kotov, and M. E. Likhachev, "Cladding-pumped 70-kW-peak-power 2-ns-pulse Er-doped fiber amplifier," Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 1051216 (Presented at SPIE LASE: January 31, 2018; Published: 26 February 2018); https://doi.org/10.1117/12.2290837.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the conference proceedings. They include the speaker's narration along with a video recording of the presentation slides and animations. Many conference presentations also include full-text papers. Search and browse our growing collection of more than 14,000 conference presentations, including many plenary and keynote presentations.
Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon