96.2 W all-fiberized nanosecond single-frequency fiber MOPA

A two-dimensional linear array fiber amplifier based on the MOPA configuration

“…This scheme also paves the way to achieve ultra high power levels by using an array of fiber amplifiers seeded by a single master oscillator [15]. Based on the MOPA configuration, an average power of 96.2 W at 12 MHz with a temporal duration of 10 ns [16] and an average power of 62 W at 80 MHz with a temporal duration of 40 ps have been achieved [17]. A multi-stage pulse-pumping all-fiber amplifier cascade delivering 220 µJ single pulse energy at 100 Hz with single transverse output was also reported [18].…”

A sub-nanosecond narrow-linewidth pulsed laser source with controllable repetition rate

“…Pulsed fiber lasers and amplifiers have attracted much attention for applications that require short pulses at a multi-kHz pulse repetition rate (PRR) and excellent signal-to-noise ratio, exhibiting one or more of the following characteristics: high peak power [1][2][3][4], high pulse energy [5][6][7], and narrowlinewidth spectrum [8][9][10]. These fiber lasers, principally by virtue of their remarkable advantages of excellent beam quality, high reliability, compactness and heat dissipation, are extensively applied in scientific research, industrial production and national defense, for operations such as harmonic generation, materials processing, remote sensing, ranging and imaging [11][12][13][14]. In particular, Yb-doped fiber amplifiers (YDFAs) have developed rapidly in recent years because they do not have some of the drawbacks associated with other rare-doped fibers.…”