High Peak Power Er-doped Tapered Fiber Amplifier. - M. M. Khudyakov; A. E. Levchenko; V. V. Velmiskin; K. K. Bobkov; Denis S. Lipatov; Alexey N. Guryanov; Mikhail M. Bubnov; Mikhail E. Likhachev (PHOTOPTICS, 2018)