SM green fiber laser operating in CW and QCW regimes and producing over 550W of average output power

Valentin Gapontsev; Alexey Avdokhin; Pankaj Kadwani; Igor Samartsev; Nikolai Platonov; Roman Yagodkin

doi:10.1117/12.2058733

20 February 2014 SM green fiber laser operating in CW and QCW regimes and producing over 550W of average output power

Valentin Gapontsev, Alexey Avdokhin, Pankaj Kadwani, Igor Samartsev, Nikolai Platonov, Roman Yagodkin

Proceedings Volume 8964, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIII; 896407 (2014) https://doi.org/10.1117/12.2058733
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

We report a single-mode (SM) green laser based on single-pass frequency doubling of a linearly-polarized narrowlinewidth Yb fiber laser in LBO crystal, and configured to operate in a range of regimes from continuous-wave (CW) to high-repetition-rate quasi-continuous-wave (QCW). Adjusting the duty cycle, we maintained high second harmonic generation (SHG) efficiency for various output powers. Average powers of over 550W in QCW and over 350W in CW regimes were obtained with the wall-plug efficiency up to 15%, opening the possibility to creating new class of simple, compact and efficient single-mode green lasers with output power up to 1kW and above. The same approach could also be used to create high-power lasers operating at other wavelengths in ultraviolet and visible spectral ranges.

Citation Download Citation

Valentin Gapontsev, Alexey Avdokhin, Pankaj Kadwani, Igor Samartsev, Nikolai Platonov, and Roman Yagodkin "SM green fiber laser operating in CW and QCW regimes and producing over 550W of average output power", Proc. SPIE 8964, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIII, 896407 (20 February 2014); https://doi.org/10.1117/12.2058733

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