High-Power, Narrow-Linewidth, Continuous-Wave, Thulium-Doped Fiber Laser Based on MOPA
نویسندگان
چکیده
A high-power, narrow-linewidth, continuous-wave, thulium-doped fiber laser (TDFL) based on a master-oscillator power-amplifier (MOPA) was experimentally demonstrated. The main oscillator (seed source) yielded 0.64 W of narrow-linewidth output at central wavelength 1940.32 nm and 3 dB spectral bandwidth 0.05 nm. from the amplified by two-stage, cladding-pumped, thulium-doped, all-fiber amplifiers. amplifier 26 1940.33 slope efficiency approximately 55.6%. Significant residual pumping light component in not observed. During amplification process, no stimulated Brillouin scattering (SBS) effect, strong spontaneous emission (ASE) parasitic lasers were observed reverse monitoring end. Moreover, power only limited incident pump had good stability 50 min period.
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ژورنال
عنوان ژورنال: Photonics
سال: 2023
ISSN: ['2304-6732']
DOI: https://doi.org/10.3390/photonics10040347