Watt-level chirped pulse amplification based on praseodymium-doped fluoride fibers (Pr3+:ZBLAN) has been demonstrated. We have successfully amplified the 1300 nm dispersive wave from a highly nonlinear fiber to an average… Click to show full abstract
Watt-level chirped pulse amplification based on praseodymium-doped fluoride fibers (Pr3+:ZBLAN) has been demonstrated. We have successfully amplified the 1300 nm dispersive wave from a highly nonlinear fiber to an average power of 1.33 W using a three-stage Pr3+:ZBLAN amplifier. The average power is more than five times higher than that ever achieved with any praseodymium-doped fiber amplifier. The nonlinear phase distortion in the third stage of the amplifier was compensated by adjusting the distance of the compressor based on a pair of gratings. The duration of the compressed pulse was 367 fs, while the Fourier-transform limited pulse duration was 301 fs.
Journal Title: Optics express
Year Published: 2025
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