Ho:YO ceramic laser generated over 113 W of output power at 2117 nm.

We demonstrate efficient laser operation using a : ceramic with low scattering loss and excellent optical quality fabricated in-house through an improved technique in support of high-power laser operation. The : ceramic laser was in-band pumped by a Tm-fiber laser of 1931 nm at room temperature. With an optically polished but uncoated sample of 0.

Gain-switched laser diode seeded TDFA with 409 W picosecond pulses and 142 W spectrally flat supercontinuum output.

We report on a high-power picosecond all-fiber Tm-doped fiber amplifier (TDFA) seeded by a gain-switched laser diode (LD) in the 2 µm spectral range. A total average output power of 409 W (304 ps) has been generated at 320 MHz of repetition rate with 10 dB bandwidth of ~48 nm centered at 1970 nm. Over 140 W of spectrally flat supercontinuum (SC) output has been produced at 40 MHz of repetition rate with optimized fiber length.

High-performance Ho:YAG single-crystal fiber laser in-band pumped by a Tm-doped all-fiber laser.

We report on, to the best of our knowledge, the first Q-switched single-crystal fiber (Ho:YAG SCF) laser in the 2 μm spectral range, in-band pumped by a Tm-doped all-fiber laser. A continuous-wave laser with 12.5 W output power and Q-switched laser with 1.

790 W incoherent beam combination of a Tm-doped fiber laser at 1941 nm using a 3 × 1 signal combiner.

In this paper, we report on a high-power incoherent beam combination of three Tm-doped fiber amplifiers at 1941 nm based on a 3×1 signal combiner. An output power of 790 W is achieved from the signal combiner with a slope efficiency of 52.2% with respect to the launched pump power and a beam quality factor M of 2.

High-power nanosecond pulse generation from an integrated Tm-Ho fiber MOPA over 2.1 μm.

In this paper, we report on high-power stable nanosecond pulse generation at ~2.1 μm from an integrated Tm-Ho all-fiber master oscillator power amplifier (MOPA) system. A total output power of 128.